Power detection method, apparatus, device, medium, and program product

Abstract

The application provides a power detection method, device, equipment, medium and program product, relates to the optical communication technical field, and is used for improving the efficiency of multi-core optical fiber power detection. The power detection device provided by the application embodiment comprises: an imaging unit, which is used for emitting imaging light to a multi-core optical fiber to be detected, receiving reflected light obtained by reflecting the imaging light through the multi-core optical fiber, and generating a fiber core distribution image according to the reflected light; a power detection unit, which is arranged opposite to the multi-core optical fiber, is used for receiving an optical signal emitted by the multi-core optical fiber, and determining a corresponding relationship between power information and first position information according to the optical signal; and a processing and display unit, which is connected with the imaging unit and the power detection unit, is used for determining second position information of each fiber core according to the fiber core distribution image, and respectively determining power information of each fiber core according to the second position information of each fiber core and the corresponding relationship. The application is applied to the scene of detecting the power of the multi-core optical fiber.

Description

Technical Field

[0001] This application relates to the field of optical communication technology, and in particular to a power detection method, apparatus, device, medium, and program product. Background Technology

[0002] With the ever-increasing demand for transmission capacity in optical communication networks, the transmission capacity of traditional single-mode fiber is gradually approaching the Shannon limit, leading to the development of multi-core fiber. In multi-core fiber transmission links, the real-time and accurate detection of the signal power of each fiber core is crucial, directly determining the accuracy of system transmission quality assessment and the efficiency of fault location. This detection process requires the use of fan-in and fan-out devices to demultiplex the multi-core fiber signal into the single-mode fiber.

[0003] Currently, the power detection method for multi-core optical fibers is mainly based on core-by-core measurement using a conventional power meter. This requires separating and demultiplexing the signals transmitted independently by each fiber core using a fan-out device and then manually switching the measurement fiber cores to read the power data of each fiber core in sequence in order to obtain the power data of the multi-core optical fiber.

[0004] However, the aforementioned method for demultiplexing the signals of each core of a multi-core fiber to a single-mode fiber for power measurement cannot achieve direct measurement of the power of all core signals in a multi-core fiber. This makes it difficult to meet the rapid detection requirements of multi-core fibers with a large number of cores, resulting in low power detection efficiency for multi-core fibers. Summary of the Invention

[0005] This application provides a power detection method, apparatus, device, medium, and program product for improving the efficiency of power detection in multi-core optical fibers.

[0006] In a first aspect, embodiments of this application provide a power detection device, comprising: an imaging unit, configured to emit imaging light toward a multi-core optical fiber to be detected, and receive reflected light obtained by the imaging light after reflection by the multi-core optical fiber, and generate a fiber core distribution image based on the reflected light, the fiber core distribution image including each fiber core of the multi-core optical fiber; a power detection unit, disposed opposite to the multi-core optical fiber, configured to receive an optical signal emitted by the multi-core optical fiber, and determine a correspondence between at least one power information and at least one first position information based on the optical signal; and a processing and display unit, connected to the imaging unit and the power detection unit, configured to determine a second position information of each fiber core based on the fiber core distribution image, and determine the power information of each fiber core based on the second position information of each fiber core and the correspondence.

[0007] The technical solution provided in this application brings at least the following beneficial effects: The power detection device includes an imaging unit, a power detection unit, and a processing and display unit. In this way, the imaging unit can emit imaging light into the multi-core optical fiber and receive the reflected light obtained by the imaging light after it is emitted through the multi-core optical fiber, and generate a fiber core distribution image containing the distribution of all fiber cores. Furthermore, the power detection unit is arranged opposite to the multi-core optical fiber, and can perform parallel acquisition and photoelectric conversion of the light signals at different incident positions of each fiber core to obtain the correspondence between power information and first position information. Thus, the processing and display unit can determine the power information of each fiber core according to the correspondence between the second position information provided by the imaging unit and the first position information and power information of the power detection unit. In this scheme, since the power detection device can acquire a fiber core distribution image of all fiber cores in a multi-core optical fiber through the imaging unit, the power detection device can extract the second position information of all fiber cores at once based on the fiber core distribution image through the processing and display unit to obtain the physical layout of the fiber end face. Furthermore, by identifying the fiber core positions on the fiber core distribution image, the identification of each fiber core is avoided, thus saving the time spent on fiber core identification. Moreover, since the power detection device can perform parallel acquisition and photoelectric conversion of optical signals at different incident positions of each fiber core through the power detection unit to obtain the correspondence between power information and first position information, synchronous detection of multi-core optical fiber power can be achieved, thus reducing the power detection time. Therefore, the power detection device can quickly determine the power information of each fiber core through the processing and display unit to achieve rapid detection of multi-core optical fibers, thereby improving the power detection efficiency of multi-core optical fibers.

[0008] In one possible implementation, the power detection device further includes an optical unit comprising a semi-reflective and semi-transparent thin film disposed between the imaging unit and the multi-core optical fiber, for refracting the imaging light to the multi-core optical fiber and refracting the reflected light to the imaging unit.

[0009] In another possible implementation, the optical unit further includes a microlens disposed between the power detection unit and the multi-core optical fiber, for beam collimation of the optical signal emitted by the multi-core optical fiber.

[0010] In another possible implementation, the power detection device further includes: a calibration unit connected to the processing and display unit and the power detection unit, configured to determine calibration data based on the link inherent loss correction information in the calibration unit, and send the calibration data to the processing and display unit, wherein the calibration data is used to indicate the link loss of the link between the power detection unit and the processing and display unit; the processing and display unit is further configured to calibrate the power information of each fiber core based on the calibration data.

[0011] Secondly, embodiments of this application provide a power detection method, comprising: emitting imaging light into a multi-core optical fiber to be detected via an imaging unit of the power detection device, receiving reflected light obtained by the imaging light after reflection from the multi-core optical fiber, and generating a fiber core distribution image based on the reflected light, the fiber core distribution image including each fiber core of the multi-core optical fiber; receiving an optical signal emitted by the multi-core optical fiber via a power detection unit of the power detection device, and determining a correspondence between at least one power information and at least one first position information based on the optical signal; and determining second position information of each fiber core based on the fiber core distribution image via a processing and display unit of the power detection device, and determining power information of each fiber core based on the second position information of each fiber core and the correspondence.

[0012] One possible implementation, wherein determining the correspondence between at least one power information and at least one first position information based on the optical signal, includes: converting the optical signal into at least one photocurrent signal through at least one pixel region of the power detection unit; determining the power information corresponding to a pixel region based on the optical power of each photocurrent signal, and determining the first position information of each pixel region on the power detection unit; and determining the correspondence based on the power information and the first position information corresponding to each pixel region.

[0013] Another possible implementation involves determining the power information of each fiber core based on its second position information and the corresponding relationship. This includes: determining the third position information of each fiber core mapped onto the power detection unit based on a preset mapping relationship, wherein the preset mapping relationship is the positional mapping relationship between the transmitting surface of the multi-core optical fiber and the photosensitive surface of the power detection unit; and determining the power information of each fiber core based on its third position information and the corresponding relationship.

[0014] Another possible implementation, after determining the power information of each fiber core based on the second position information of each fiber core and the corresponding relationship, the method further includes: determining calibration data by the calibration unit of the power detection device based on the inherent link loss correction information of the link between the power detection unit and the processing and display unit, wherein the calibration data is used to indicate the link loss of the link between the power detection unit and the processing and display unit; and calibrating the power information corresponding to each fiber core by the processing and display unit based on the calibration data.

[0015] Thirdly, embodiments of this application provide a power detection device, comprising: a transmitting module, a receiving module, a generating module, and a determining module; the transmitting module is configured to transmit imaging light to a multi-core optical fiber to be detected; the receiving module is configured to receive reflected light obtained by the imaging light emitted by the transmitting module after reflection by the multi-core optical fiber; the generating module is configured to generate a fiber core distribution image based on the reflected light received by the receiving module, the fiber core distribution image including each fiber core of the multi-core optical fiber; the receiving module is further configured to receive an optical signal emitted by the multi-core optical fiber; the determining module is configured to determine a correspondence between at least one power information and at least one first position information based on the optical signal; and determine a second position information for each fiber core based on the fiber core distribution image generated by the generating module, and determine the power information for each fiber core based on the second position information of each fiber core and the correspondence.

[0016] In one possible implementation, the power detection device further includes: a conversion module; the conversion module is used to convert the optical signal into at least one photocurrent signal through at least one pixel region of the power detection unit of the power detection device; the determination module is specifically used to determine the power information corresponding to a pixel region based on the optical power of each photocurrent signal, and to determine the first position information of each pixel region on the power detection unit; and to determine the correspondence based on the power information and the first position information corresponding to each pixel region.

[0017] Another possible implementation is that the aforementioned determining module is specifically used to determine the third position information of the second position information of each fiber core mapped onto the power detection unit according to a preset mapping relationship, wherein the preset mapping relationship is the position mapping relationship between the transmitting surface of the multi-core optical fiber and the photosensitive surface of the power detection unit; and to determine the power information of each fiber core according to the third position information corresponding to each fiber core and the aforementioned correspondence relationship.

[0018] In another possible implementation, the power detection device further includes a transmitting module and a calibration module; the determining module is further configured to, after determining the power information of each fiber core according to the second position information of each fiber core and the corresponding relationship, determine calibration data according to the link inherent loss correction information of the link between the power detection unit and the processing and display unit of the power detection device, wherein the calibration data is used to indicate the link loss of the link between the power detection unit and the processing and display unit; the transmitting module is configured to transmit the calibration data to the processing and display unit; and the calibration module is configured to calibrate the power information corresponding to each fiber core according to the calibration data determined by the determining module.

[0019] Fourthly, this application provides an electronic device comprising: a processor and a memory; the memory storing a program or instructions executable on the processor, wherein the program or instructions, when executed by the processor, implement the method of the second aspect described above.

[0020] Fifthly, this application provides a readable storage medium on which a program or instructions are stored, which, when executed by a computer, implement the method of the second aspect described above.

[0021] Sixthly, this application provides a computer program product stored in a storage medium, which, when executed by a computer, implements the method described in the second aspect above.

[0022] In a seventh aspect, embodiments of this application provide a chip including a processor and a communication interface coupled to the processor, the processor being used to run programs or instructions to implement the method as described in the second aspect.

[0023] The beneficial effects of the second to sixth aspects mentioned above are described in the corresponding description of the first aspect and will not be repeated here. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a power detection device provided in an embodiment of this application;

[0025] Figure 2 This is a schematic diagram of the structure of a power detection device provided in an embodiment of this application;

[0026] Figure 3 This is a schematic diagram of the structure of a power detection device provided in an embodiment of this application;

[0027] Figure 4 This is a schematic diagram of the structure of a power detection device provided in an embodiment of this application;

[0028] Figure 5 A schematic flowchart of a power detection method provided in an embodiment of this application;

[0029] Figure 6 This is a schematic diagram of the structure of a power detection device provided in an embodiment of this application;

[0030] Figure 7 This is a schematic diagram of the structure of another power detection device provided in the embodiments of this application;

[0031] Figure 8 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0032] The power detection method, apparatus, equipment, medium, and program products provided in this application will now be described in detail with reference to the accompanying drawings.

[0033] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0034] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0035] The terms "at least one," "at least one of," etc., used in the specification and claims of this application refer to any one, any two, or a combination of two or more of the included items. For example, at least one of a, b, and c can mean: "a," "b," "c," "a and b," "a and c," "b and c," and "a, b, and c," where a, b, and c can be single or multiple. Similarly, "at least two" refers to two or more items, and its meaning is similar to that of "at least one."

[0036] In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0037] The power detection method, apparatus, device, medium, and program product provided in this application embodiment can be applied to scenarios involving power detection of multi-core optical fibers.

[0038] With the ever-increasing demand for transmission capacity in optical communication networks, the transmission capacity of traditional single-mode fiber is gradually approaching the Shannon limit. Multi-core fiber, with its characteristic of integrating multiple independent cores within the same cladding, can significantly increase the transmission capacity of a single fiber without changing the fiber's outer diameter, becoming one of the core technologies for overcoming existing capacity bottlenecks and gradually beginning pilot verification in live networks. Signal transmission in multi-core fiber relies on the multiplexing and demultiplexing of signals using fan-in and fan-out devices. In a multi-core fiber transmission link, the transmitting end uses fan-in devices to multiplex multiple parallel single-mode signals to the cores of the multi-core fiber, while the receiving end uses fan-out devices to separate the independently transmitted signals from each core and demultiplex them back to the single-mode fiber. In the daily operation and maintenance and fault monitoring of multi-core fiber communication systems, real-time and accurate detection of the signal power of each core is crucial, directly determining the accuracy of system transmission quality assessment and the efficiency of fault location. This detection process requires the use of fan-in and fan-out devices to demultiplex the multi-core fiber signals back to the single-mode fiber.

[0039] However, current power detection methods based on single-mode fiber power meters have significant technical limitations. They require demultiplexing to a single-mode fiber using a fan-out device, manually switching the measurement core, and sequentially reading the power data of each core. This approach cannot directly measure the signal power of all cores in a multi-core fiber. This detection method is not only inefficient but also ill-suited for the rapid detection needs of multi-core fibers with large core counts, thus hindering the practical application of multi-core fiber technology.

[0040] The current method for power detection of all cores in multi-core optical fibers uses a combination of fan-in / fan-out demultiplexing and a standard optical fiber power meter. First, the signals from each core of the multi-core fiber are demultiplexed onto a single-mode fiber using a fan-out device, and then connected to a standard power meter for core-by-core measurement. This method only supports single-channel, single-core power detection, requiring manual switching of cores to read data sequentially. In scenarios with a large number of cores, the detection time increases exponentially with the number of cores, resulting in extremely low efficiency and making it difficult to meet the needs of large-scale commercial use in existing multi-core optical fiber networks.

[0041] If the output light from a multi-core fiber is directly incident onto a conventional fiber optic power meter, the lack of a dedicated beam collimation and spatial separation structure will cause optical field superposition and crosstalk at the detection surface. Furthermore, conventional power detection units lack position resolution and spatial response characteristics, and also lack an imaging unit, making it impossible to identify the spatial distribution of output light signals from different fiber cores and the corresponding fiber core signal power.

[0042] To address the technical limitation of existing conventional fiber optic power meters in their inability to directly and synchronously measure the power of all cores in a multi-core fiber, a multi-core fiber power detection device is proposed. First, the output light from each core of the multi-core fiber is incident on a dedicated multi-core optical unit. This unit synchronously collimates and spatially separates the output light signals from cores at different locations within the same cladding, preventing optical field superposition and signal crosstalk between cores at the physical optical path level. Then, based on spatial position response characteristics, the dedicated multi-core power detection unit collects and photoelectrically converts the light signals from different incident positions, acquiring the independent optical power of each core in real time. Simultaneously, an imaging unit actively emits imaging light, using the reflected signal from the fiber end face to identify the core number of the marked core, achieving precise correspondence between the physical location of the core and the detection channel. A processing and display unit performs correlation matching and fusion processing on the core number and power data, synchronously displaying the power of all cores in real time. A calibration unit precisely compensates for the inherent losses in the optical path transmission and detection stages, and synchronously transmits the calibration parameters to the processing and display unit, ensuring the accuracy and reliability of the power values ​​for each core.

[0043] To address the aforementioned technical problems, embodiments of this application provide a power detection method, apparatus, device, medium, and program product. By mapping the physical location of each fiber core in a multi-core optical fiber to power data, all fibers in the multi-core optical fiber can be detected in parallel without the need for individual detection, thus accelerating the detection process and improving the power detection efficiency of multi-core optical fibers.

[0044] Figure 1 A schematic diagram of the power detection device 200 provided in an embodiment of this application is shown. Figure 1 As shown, the power detection device 200 provided in this application embodiment may include: an imaging unit 201, configured to emit imaging light to the multi-core optical fiber to be detected, receive reflected light obtained by the imaging light after reflection by the multi-core optical fiber, and generate a fiber core distribution image based on the reflected light, wherein the fiber core distribution image includes each fiber core of the multi-core optical fiber; a power detection unit 202, disposed opposite to the multi-core optical fiber, configured to receive the optical signal emitted by the multi-core optical fiber, and determine the correspondence between at least one power information and at least one first position information based on the optical signal; and a processing and display unit 203, connected to the imaging unit 201 and the power detection unit 202, configured to determine the second position information of each fiber core based on the fiber core distribution image, and determine the power information of each fiber core based on the second position information of each fiber core and the correspondence.

[0045] In some embodiments of this application, the multi-core optical fiber may include at least two cores, one of which may be a marker core used to mark the core number of the multi-core optical fiber. The multi-core optical fiber can be fixed by an optical fiber fixing device, and with the optical fiber output end face kept flat, it ensures that the output light can be stably incident on the power detection device 200.

[0046] In some embodiments of this application, the aforementioned optical fiber output end face can be the physical contact surface at the end of the light beam, that is, the physical interface of the optical fiber leaving the optical fiber and entering the aforementioned power detection device 200.

[0047] In some embodiments of this application, the imaging unit 201 described above may be a fiber optic end-face inspection instrument.

[0048] In some embodiments of this application, the imaging unit 201 can actively emit imaging light so that the imaging light is incident perpendicularly on the output end face of the multi-core optical fiber, thereby enabling the imaging unit to identify the reflected light from the end face of the multi-core optical fiber.

[0049] In some examples, after the imaging light from the imaging unit 201 is received at the output end face of the multi-core optical fiber, the imaging light can be reflected to generate reflected light, which can be displayed as a difference image formed between the fiber core and the cladding. The reflected light can return to the imaging unit 201 in the opposite direction, following the path of the emitted light that reached the output end face of the multi-core optical fiber.

[0050] In some embodiments of this application, the imaging unit 201 can acquire a difference image between the fiber core and cladding at the end face of the multi-core optical fiber based on the reflected light, i.e., a fiber core distribution image.

[0051] In some embodiments of this application, the power detection unit 202 described above adopts a large-area complementary metal-oxide-semiconductor (CMOS) array. The CMOS array is composed of at least one pixel region arranged in a regular manner. Each pixel region includes multiple independent pixel units. Each pixel unit corresponds to a unique spatial coordinate on the photosensitive surface, and each pixel region corresponds to a unique spatial coordinate on the photosensitive surface.

[0052] For example, in a CMOS array containing pixel units in X rows and Y columns, the spatial coordinates on the photosensitive surface corresponding to the pixel unit in the xth row and yth column can be (x, y).

[0053] In some embodiments of this application, the first position information mentioned above may be the physical coordinates of each pixel on the photosensitive surface.

[0054] In some embodiments of this application, the power detection unit 202 can distinguish light signals at different incident positions through the pixel area to perform parallel detection of the power of multiple fiber cores.

[0055] In some embodiments of this application, the power detection unit 202 can convert the incident light signal into a linearly corresponding photocurrent signal through the pixel unit.

[0056] In some embodiments of this application, the power detection unit 202 described above can integrate and sum the photocurrent of a continuous pixel region to obtain the total optical power of that region.

[0057] In some embodiments of this application, the power information described above may include at least one of the total optical power described above.

[0058] In some embodiments of this application, the power detection unit 202 can synchronously acquire and read out the signals of all pixels through the photosensitive surface composed of a CMOS array, and obtain the correspondence between the power information of each pixel and the spatial coordinates of the pixel, so as to realize the synchronous parallel detection of the power of the entire fiber core.

[0059] In some embodiments of this application, the power information described above may include at least one pixel power information.

[0060] In some embodiments of this application, the above-mentioned at least one power information may be the power level corresponding to each pixel.

[0061] In some embodiments of this application, the above correspondence can be represented as the correspondence between the power information and physical coordinates of the same pixel.

[0062] In some embodiments of this application, the power detection unit 202 described above can detect the fiber core power in real time based on the mode field distribution of the output light of each fiber core at different positions on the CMOS array.

[0063] In some embodiments of this application, the power detection unit 202 described above may employ a multi-channel parallel photodetector to detect the fiber core power in real time.

[0064] In some embodiments of this application, there is a corresponding mapping relationship between the spatial coordinates of the power information of the power detection unit 202 and the image coordinates on the fiber core distribution image of the imaging unit 201.

[0065] In some embodiments of this application, the processing and display unit 203 can obtain the position of the marked core from the core distribution image after acquiring the core distribution image, and identify the cores sequentially according to the core distribution image information of the imaging unit 201.

[0066] In some embodiments of this application, the processing and display unit 203 described above can mark the physical serial number of all fiber cores and establish the physical coordinates of the fiber cores on the fiber end face, and determine the physical coordinates as the first position information of the fiber cores.

[0067] In some embodiments of this application, the second position information of the fiber core may be the position information of the fiber core in the image coordinate system of the fiber core distribution image.

[0068] In some embodiments of this application, the above-mentioned processing and display unit 203 can associate and match fiber core serial number and power data.

[0069] In some embodiments of this application, the processing and display unit 203 described above can receive the power information of the optical fiber and the correspondence between the spatial coordinates transmitted from the power detection unit 202.

[0070] In some embodiments of this application, the processing and display unit 203 can obtain the correspondence between the first position information and the second position information based on the correspondence between the power information and the spatial coordinates.

[0071] In some embodiments of this application, the CMOS array of the power detection unit and the end face of the multi-core optical fiber should be arranged opposite to each other, and the photosensitive surface of the CMOS array and the end face of the multi-core optical fiber should be parallel to each other.

[0072] In some embodiments of this application, the above-described processing display unit may be wired or wirelessly connected to the imaging unit.

[0073] In some embodiments of this application, the above-described processing and display unit may be wired or wirelessly connected to the power detection unit.

[0074] In some embodiments of this application, the processing and display unit 203 described above can receive the fiber core number and spatial coordinate mapping table from the imaging unit 201.

[0075] In some embodiments of this application, the processing and display unit 203 can match the fiber core number and fiber power according to the mapping relationship between the spatial coordinates and the image coordinates.

[0076] In some examples, combined Figure 1 ,like Figure 2 As shown, the power detection device 200 further includes an optical unit 204, which includes a semi-reflective and semi-transparent thin film 2041 disposed between the imaging unit 201 and the multi-core optical fiber, for refracting the imaging light to the multi-core optical fiber and refracting the reflected light to the imaging unit 201.

[0077] In some embodiments of this application, the imaging light emitted by the imaging unit 201 can pass through the semi-reflective and semi-transparent thin film of the optical unit 204 and be incident perpendicularly onto the output end face of the multi-core optical fiber.

[0078] In some embodiments of this application, the reflected light can be returned to the imaging unit 201 via the optical unit 204.

[0079] In some examples, combined Figure 2 ,like Figure 3 As shown, the optical unit 204 of the power detection device 200 further includes a microlens 2042, which is disposed between the power detection unit 202 and the multi-core optical fiber, for beam collimation of the optical signal emitted by the multi-core optical fiber.

[0080] In some embodiments of this application, the multi-core optical fiber can be fixed by an optical fiber fixing device to ensure stable incident output light through the optical fiber output end face of the certificate.

[0081] In some embodiments of this application, the optical unit 204 described above may be a microstructured spatial optical device or a diffractive optical device.

[0082] In some embodiments of this application, the optical unit 204 can collimate and spatially separate the output light of fiber cores at different positions within the same cladding, so that the separated light signals are perpendicularly incident on the photosensitive area of ​​the CMOS array of the power detection unit 202.

[0083] In some embodiments of this application, the collimation and spatial separation of the output light by the optical unit 204 can be performed simultaneously.

[0084] In some embodiments of this application, the optical unit 204 can be a microstructure optical device, which collimates and spatially separates the output light of fiber cores at different positions within the same cladding through an array of microlenses 2042, so as to eliminate crosstalk between fiber cores.

[0085] In some embodiments of this application, the output end face of the multi-core optical fiber can be located on the object-side focal plane of the microlens 2042 array of the optical unit 204.

[0086] In some embodiments of this application, the effective numerical aperture of the microlens 2042 array must be greater than the maximum numerical aperture of the multi-core fiber, so that the optical field of all the cores of the multi-core fiber can be received by the microlens 2042 array.

[0087] In some embodiments of this application, the optical central axis of the microlens 2042 array is coaxial with the cladding geometric center of the multi-core fiber end face, so that the beams of all fiber cores are emitted symmetrically with respect to the optical axis of the microlens 2042 array.

[0088] In this way, it can be ensured that the divergent Gaussian beams emitted from each fiber core are converted into parallel collimated beams after passing through the microlens 2042 array, avoiding far-field superposition crosstalk caused by beam divergence.

[0089] In some examples, combined Figure 1 ,like Figure 4 As shown, the power detection device 200 further includes a calibration unit 205, which is connected to the processing and display unit 203 and the power detection unit 202, and is used to determine calibration data based on the link inherent loss correction information in the calibration unit 205, and send the calibration data to the processing and display unit 203.

[0090] In some embodiments of this application, the calibration data is used to indicate the link loss of the link between the power detection unit 202 and the processing display unit 203.

[0091] In some embodiments of this application, the processing and display unit 203 is further configured to calibrate the power information of each fiber core based on the calibration data.

[0092] In some embodiments of this application, the correction unit 205 may have built-in known link inherent loss correction information.

[0093] In some embodiments of this application, the above-mentioned link inherent loss correction information can be used to uniformly calibrate the inherent loss in the detection link.

[0094] In some embodiments of this application, the calibration unit 205 can transmit calibration data to the processing and display unit 203.

[0095] In some embodiments of this application, the example display unit described above can receive calibration information transmitted by the calibration unit 205, match the calibration message with spatial coordinates, and obtain the calibration parameters of the fiber power of each fiber core in order to calibrate the fiber power of each fiber core.

[0096] In some embodiments of this application, the processing and display unit 203 can display the corrected fiber power on the screen after correcting the fiber power of each fiber core.

[0097] This application provides a power detection device, which includes an imaging unit, a power detection unit, and a processing and display unit. The imaging unit emits imaging light into a multi-core optical fiber and receives the reflected light emitted through the multi-core optical fiber, generating a fiber core distribution image containing the distribution of all fiber cores. The power detection unit is positioned opposite the multi-core optical fiber, allowing parallel acquisition and photoelectric conversion of optical signals from different incident positions of each fiber core to obtain the correspondence between power information and first position information. The processing and display unit then determines the power information of each fiber core based on the correspondence between the second position information provided by the imaging unit and the first position and power information from the power detection unit. In this scheme, since the power detection device can acquire a fiber core distribution image of all fiber cores in a multi-core optical fiber through the imaging unit, the power detection device can extract the second position information of all fiber cores at once based on the fiber core distribution image through the processing and display unit to obtain the physical layout of the fiber end face. Furthermore, by identifying the fiber core positions on the fiber core distribution image, the identification of each fiber core is avoided, thus saving the time spent on fiber core identification. Moreover, since the power detection device can perform parallel acquisition and photoelectric conversion of optical signals at different incident positions of each fiber core through the power detection unit to obtain the correspondence between power information and first position information, synchronous detection of multi-core optical fiber power can be achieved, thus reducing the power detection time. Therefore, the power detection device can quickly determine the power information of each fiber core through the processing and display unit to achieve rapid detection of multi-core optical fibers, thereby improving the power detection efficiency of multi-core optical fibers.

[0098] See Figure 5 This is a schematic flowchart of a power detection method provided in an embodiment of this application. Figure 5 As shown, the power detection method provided in this application embodiment can be implemented by the power detection device described above, specifically including the following steps 301 to 303.

[0099] Step 301: The power detection device emits imaging light into the multi-core optical fiber to be detected through the imaging unit, receives the reflected light obtained by the imaging light after being reflected by the multi-core optical fiber, and generates a fiber core distribution image based on the reflected light.

[0100] In some embodiments of this application, the above-described fiber core distribution image includes each core of the multi-core optical fiber.

[0101] In some embodiments of this application, the multi-core optical fiber may include at least two cores.

[0102] In some embodiments of this application, the imaging light may be a light beam actively emitted by the imaging unit.

[0103] In some embodiments of this application, the imaging light can be emitted to the end face of the multi-core optical fiber.

[0104] In some embodiments of this application, the reflected light may be the reflected light generated after the imaging light is emitted to the end face of the multi-core optical fiber.

[0105] In some embodiments of this application, the above-described optical fiber distribution image can characterize the coordinate information of each fiber core in the multi-core optical fiber.

[0106] Step 302: The power detection device receives the optical signal emitted by the multi-core optical fiber through the power detection unit, and determines the correspondence between at least one power information and at least one first position information based on the optical signal.

[0107] In some embodiments of this application, the optical signal may be actively transmitted by the multi-core optical fiber.

[0108] In some embodiments of this application, the optical signal described above can be used for power detection.

[0109] In some embodiments of this application, the power information described above represents the power level of each pixel on the photosensitive surface of the CMOS array of the power detection device.

[0110] In some embodiments of this application, the coordinates and power of pixels on the photosensitive surface are in one-to-one correspondence.

[0111] In some embodiments of this application, the above correspondence can characterize the power magnitude at the coordinates corresponding to each pixel.

[0112] In some embodiments of this application, the determination of the correspondence between at least one power information and at least one first position information based on the optical signal in step 302 above can be specifically implemented through steps 302a to 302c below.

[0113] Step 302a: The power detection device converts the optical signal into at least one photocurrent signal through at least one pixel area of ​​the power detection unit.

[0114] In some embodiments of this application, the optical signal may be the output light signal of the multi-core optical fiber.

[0115] In some embodiments of this application, the photocurrent signal described above can be used for power detection.

[0116] Step 302b: The power detection device determines the power information corresponding to a pixel region based on the optical power of each photocurrent signal, and determines the first position information of each pixel region on the power detection unit.

[0117] In some embodiments of this application, the first position information is the position coordinates of each pixel region on the CMOS array of the power detection unit.

[0118] Step 302c: The power detection device determines the above correspondence based on the power information and the first position information corresponding to each pixel region.

[0119] In some embodiments of this application, the power information described above can characterize the power of each pixel in the CMOS array.

[0120] In some embodiments of this application, the first position information of the pixel region may be the position coordinates of the pixel on the photosensitive surface of the CMOS array.

[0121] In some embodiments of this application, the photosensitive surface described above can be used to collect power information.

[0122] In some embodiments of this application, the above correspondence represents the relationship between the power magnitude of each pixel and the position coordinates of that pixel.

[0123] Step 303: The power detection device, through the processing and display unit, determines the second position information of each fiber core based on the fiber core distribution image, and determines the power information of each fiber core based on the second position information of each fiber core and the corresponding relationship.

[0124] In some embodiments of this application, the second location information may be the position coordinates of each fiber core on the fiber core distribution image.

[0125] In some embodiments of this application, the determination of the power information of each fiber core in step 303 based on the second position information of each fiber core and the corresponding relationship can be specifically implemented by steps 303a and 303b below.

[0126] Step 303a: The power detection device determines the third position information of the power detection unit on which the second position information of each fiber core is mapped according to the preset mapping relationship.

[0127] The aforementioned preset mapping relationship is the positional mapping relationship between the transmitting surface of the multi-core optical fiber and the photosensitive surface of the power detection unit.

[0128] In some embodiments of this application, the preset mapping relationship may be a mapping relationship between the first location information and the second location information.

[0129] In some embodiments of this application, the position information of the pixels on the photosensitive surface of the CMOS array may correspond to the position coordinates of each fiber core in the fiber core distribution image.

[0130] In some embodiments of this application, the third position information may be the position coordinates of each fiber core on the photosensitive surface obtained according to the mapping relationship.

[0131] Step 303b: The power detection device determines the power information of each fiber core based on the third position information corresponding to each fiber core and the above correspondence.

[0132] In some embodiments of this application, the power information of each fiber core is the power information at the third position information corresponding to each fiber core.

[0133] In some embodiments of this application, the power detection device described above can obtain the power of the fiber core corresponding to the third position information on the photosensitive surface.

[0134] Thus, since the power detection device determines the third position information of the power detection unit based on the preset mapping relationship, so that the third position information and the first position information are mapped in the same position space, the power detection device can accurately determine the power information of each fiber core based on the third position information corresponding to each fiber core and the above-mentioned correspondence relationship, thereby improving the accuracy of power detection.

[0135] This application provides a power detection method. The power detection device can emit imaging light into the multi-core optical fiber to be detected through the imaging unit of the power detection device, and receive the reflected light obtained by the imaging light after the multi-core optical fiber is reflected by the imaging light, and generate a fiber core distribution image based on the reflected light. The fiber core distribution image includes each fiber core of the multi-core optical fiber. The power detection unit of the power detection device receives the optical signal emitted by the multi-core optical fiber, and determines the correspondence between at least one power information and at least one first position information based on the optical signal. The processing and display unit of the power detection device determines the second position information of each fiber core based on the fiber core distribution image, and determines the power information of each fiber core based on the second position information and the correspondence. Since the power detection device can acquire a fiber core distribution image of all fiber cores in a multi-core optical fiber through the imaging unit, it can extract the second position information of all fiber cores at once based on this fiber core distribution image through the processing and display unit to obtain the physical layout of the fiber end face. Furthermore, by identifying the fiber core positions on the fiber core distribution image, it avoids identifying each fiber core individually, thus saving the time spent on fiber core identification. Moreover, since the power detection device can perform parallel acquisition and photoelectric conversion of optical signals at different incident positions of each fiber core through the power detection unit to obtain the correspondence between power information and the first position information, it can achieve synchronous detection of the power of multi-core optical fibers, thus reducing the time spent on power detection. Therefore, the power detection device can quickly determine the power information of each fiber core through the processing and display unit to achieve rapid detection of multi-core optical fibers, thereby improving the efficiency of multi-core optical fiber power detection.

[0136] In some embodiments, after step 303 above, the power detection method provided in this application may further include steps 401 and 402.

[0137] Step 401: The power detection device determines calibration data based on the inherent link loss correction information of the link between the power detection unit and the processing and display unit through the calibration unit of the power detection device; and sends the calibration data to the processing and display unit.

[0138] In this embodiment of the application, the calibration data is used to indicate the link loss of the link between the power detection unit and the processing display unit.

[0139] In some embodiments of this application, the aforementioned link inherent loss correction information can characterize the power attenuation information of the optical fiber core in the power detection device.

[0140] In some embodiments of this application, the power detection device can obtain the above-mentioned link inherent loss correction information through the theoretical attenuation coefficient.

[0141] In some embodiments of this application, the above calibration data can be used to calibrate the power value of each fiber core.

[0142] Step 402: The power detection device calibrates the power information of each fiber core based on the calibration data through the processing and display unit.

[0143] In some embodiments of this application, the above calibration data can be used to calibrate the power information corresponding to each fiber core.

[0144] Thus, the power information of each fiber core is corrected by calibration data to obtain the power detection device of this application embodiment described below through specific embodiments.

[0145] In some embodiments, such as Figure 6 As shown, the power detection device 200 provided in this application embodiment includes: an optical unit 204, a power detection unit 202, an imaging unit 201, a processing and display unit 203, and a correction unit 205.

[0146] In some embodiments of this application, the power detection device further includes a multi-core optical fiber and an optical fiber fixing device.

[0147] In some embodiments of this application, the multi-core optical fiber can be fixed by an optical fiber fixing device, and the output end face of the optical fiber is kept flat to ensure stable incident output light.

[0148] In some embodiments of this application, the optical unit described above can be a microstructure optical device, which can synchronously collimate and spatially separate the output light of fiber cores at different positions within the same cladding through a microlens array, thereby avoiding crosstalk between fiber cores at the optical path level.

[0149] In some embodiments of this application, the output end face of the multi-core optical fiber can be located on the object-side focal plane of the lens in the microlens array, so that the diverging Gaussian beam emitted from each fiber core is converted into a parallel collimated beam after passing through the lens, thereby avoiding far-field superposition crosstalk caused by beam divergence.

[0150] In some embodiments of this application, the effective numerical aperture of the lens must be greater than the maximum numerical aperture of the multi-core optical fiber so that the entire optical field of the fiber core can be received by the lens.

[0151] In some embodiments of this application, the optical central axis of the lens can be coaxial with the cladding geometric center of the multi-core fiber end face, so that the beams of all fiber cores are emitted symmetrically with respect to the optical axis of the lens.

[0152] In some embodiments of this application, the power detection unit described above may be a large-area CMOS array, which is composed of a large number of independent pixel units arranged in a regular manner, and each pixel unit corresponds to a unique spatial coordinate on the photosensitive surface.

[0153] In some embodiments of this application, each pixel unit of the power detection unit described above can distinguish light signals at different incident positions to achieve multi-fiber parallel detection.

[0154] In some embodiments of this application, each pixel unit can convert the incident light signal into a linearly corresponding photocurrent signal, and by integrating and summing the photocurrent of a continuous pixel region, the total optical power of that region can be obtained.

[0155] In some embodiments of this application, the signals of all pixels on the photosensitive surface can be acquired and read out synchronously without serial scanning or channel switching, thereby achieving synchronous parallel detection of the power of the entire fiber core and transmitting the power information to the processing and display unit.

[0156] In some embodiments of this application, the imaging unit can actively emit imaging light, which passes through the semi-reflective and semi-transparent thin film of the optical unit and is incident vertically onto the output end face of the multi-core optical fiber.

[0157] In some embodiments of this application, the fiber core and cladding of the multi-core fiber end face form a difference image, and the reflected light returns to the imaging unit via the optical unit. The imaging unit then acquires an image of the fiber core distribution of the multi-core fiber end face.

[0158] In some embodiments of this application, the above-mentioned processing and display unit can identify and mark the physical sequence number of all fiber cores in sequence according to the image information of the imaging unit based on the known marker core positions, and at the same time establish a mapping relationship between the physical coordinates of the fiber cores on the fiber end face and the spatial coordinates of the power detection unit.

[0159] In some embodiments of this application, the above-mentioned correction unit has built-in known link inherent loss correction information, which can be used to uniformly calibrate the inherent loss in the detected link and transmit the calibration data to the processing and display unit.

[0160] In some embodiments of this application, the above-mentioned processing and display unit is a data processing hub that can perform precise correlation and matching of fiber core number, power data, and correction parameters.

[0161] In some embodiments of this application, the above-mentioned processing and display unit can receive the raw optical power and spatial coordinate corresponding data transmitted by the power detection unit.

[0162] In some embodiments of this application, the above-mentioned processing and display unit can receive the fiber core number and spatial coordinate mapping table transmitted by the imaging unit, and complete the matching of the fiber core number and the original optical power value through spatial coordinate matching.

[0163] In some embodiments of this application, the above-mentioned processing and display unit can receive power correction information transmitted by the correction unit, and match the corresponding correction parameters to the original optical power value of each fiber core through spatial coordinate matching.

[0164] In some embodiments of this application, the above-mentioned processing and display unit can generate the corresponding results of the fiber core physical serial number and the actual power, and synchronously complete the real-time display on the screen.

[0165] It should be noted that the description of this embodiment can be found in the above embodiments, and will not be repeated here.

[0166] It should be noted that the above-described method embodiments, or the various possible implementations of the method embodiments, can be executed individually, or, provided there is no conflict, they can be combined with each other. The specific implementation can be determined according to actual usage requirements, and this application embodiment does not impose any restrictions on this.

[0167] As can be seen, the above mainly describes the solutions provided by the embodiments of this application from a methodological perspective. To achieve the above functions, the embodiments of this application provide corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, in conjunction with the modules and algorithm steps of the various examples described in the embodiments disclosed herein, the embodiments of this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0168] This application embodiment can divide the power detection device into functional modules according to the above method example. For example, each function can be divided into its own functional module, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware or as a software functional module. Optionally, the module division in this application embodiment is illustrative and only represents one logical functional division; other division methods may be used in actual implementation.

[0169] In some embodiments, this application also provides a power detection device. The power detection device may include one or more functional modules for implementing the power detection method of the above method embodiments.

[0170] For example, Figure 7 This is a schematic diagram of a power detection device provided in an embodiment of this application. Figure 7 As shown, the power detection device 900 includes: a transmitting module 901, a receiving module 902, a generating module 903, and a determining module 904. The transmitting module 901 is used to transmit imaging light to the multi-core optical fiber to be detected. The receiving module 902 is used to receive the reflected light obtained by the imaging light emitted by the transmitting module 901 after reflection by the multi-core optical fiber. The generating module is used to generate a fiber core distribution image based on the reflected light received by the receiving module 902, the fiber core distribution image including each fiber core of the multi-core optical fiber. The receiving module 902 is also used to receive an optical signal emitted by the multi-core optical fiber. The determining module 904 is used to determine the correspondence between at least one power information and at least one first position information based on the optical signal; and to determine the second position information of each fiber core based on the fiber core distribution image generated by the generating module, and to determine the power information of each fiber core based on the second position information of each fiber core and the correspondence.

[0171] In some embodiments, the power detection device 900 further includes: a conversion module; the conversion module is configured to convert the optical signal into at least one photocurrent signal through at least one pixel region of the power detection unit of the power detection device 900; the determination module 904 is specifically configured to determine the power information corresponding to a pixel region based on the optical power of each photocurrent signal, and to determine the first position information of each pixel region on the power detection unit; and to determine the correspondence based on the power information and the first position information corresponding to each pixel region.

[0172] In some other embodiments, the determining module 904 is specifically used to determine the third position information of the second position information of each fiber core mapped onto the power detection unit according to a preset mapping relationship, wherein the preset mapping relationship is the position mapping relationship between the transmitting surface of the multi-core optical fiber and the photosensitive surface of the power detection unit; and to determine the power information of each fiber core according to the third position information corresponding to each fiber core and the above-mentioned correspondence relationship.

[0173] In some other embodiments, the power detection device 900 further includes a transmitting module and a calibration module; the determining module 904 is further configured to, after determining the power information of each fiber core according to the second position information of each fiber core and the correspondence, determine calibration data according to the link inherent loss correction information of the link between the power detection unit and the processing display unit of the power detection device 900, the calibration data being used to indicate the link loss of the link between the power detection unit and the processing display unit; the transmitting module is configured to transmit the calibration data to the processing display unit; the calibration module is configured to calibrate the power information corresponding to each fiber core according to the calibration data determined by the determining module 904.

[0174] This application provides a power detection device. Since the power detection device can acquire a fiber core distribution image of all fiber cores in a multi-core optical fiber through an imaging unit, the power detection device can extract the second position information of all fiber cores at once based on this fiber core distribution image through a processing and display unit to obtain the physical layout of the fiber end face. Furthermore, by identifying the fiber core positions on the fiber core distribution image, the device avoids identifying each fiber core individually, thus saving the time spent on fiber core identification. Moreover, since the power detection device can perform parallel acquisition and photoelectric conversion of optical signals at different incident positions of each fiber core through a power detection unit to obtain the correspondence between power information and first position information, it can achieve synchronous detection of the power of multi-core optical fibers, thus reducing the time spent on power detection. Therefore, the power detection device can quickly determine the power information of each fiber core through a processing and display unit to achieve rapid detection of multi-core optical fibers, thereby improving the efficiency of multi-core optical fiber power detection.

[0175] It should be noted that the power detection device can implement all the processes implemented in the above method embodiments and achieve the same beneficial effects. To avoid repetition, it will not be described again here.

[0176] In the case where the functions of the integrated modules described above are implemented in hardware, this application provides a possible structural schematic diagram of the electronic device involved in the above embodiments. For example... Figure 8 As shown, the electronic device 90 includes: a processor 92, a communication interface 93, and a bus 94. Optionally, the electronic device 90 may also include a memory 91.

[0177] Processor 92 may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. Processor 92 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. Processor 92 may also be a combination that implements computational functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

[0178] Communication interface 93 is used to connect with other devices via a communication network. This communication network can be Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0179] The memory 91 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but is not limited thereto.

[0180] As one possible implementation, the memory 91 can exist independently of the processor 92. The memory 91 can be connected to the processor 92 via a bus 94 and is used to store instructions or program code. When the processor 92 calls and executes the instructions or program code stored in the memory 91, it can implement the power detection method provided in the embodiments of this application.

[0181] In another possible implementation, memory 91 can also be integrated with processor 92.

[0182] Bus 94 can be an Extended Industry Standard Architecture (EISA) bus, etc. Bus 94 can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 8 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0183] Through the above description of the implementation methods, those skilled in the art can clearly understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the service calling device can be divided into different functional modules to complete all or part of the functions described above.

[0184] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above power detection method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0185] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0186] This application also provides a readable storage medium storing a program or instructions that, when executed by a computer, implement the power detection method provided in the above embodiments. It is understood that all or part of the processes in the above method embodiments can be executed by computer instructions instructing related hardware; the readable storage medium can be any of the foregoing embodiments or memory; the readable storage medium can also be an external storage device of the service invocation device, such as a pluggable hard drive, Smart MediaCard (SMC), Secure Digital (SD) card, flash card, etc., equipped on the service invocation device. Further, the readable storage medium can include both internal storage units of the service invocation device and external storage devices. The readable storage medium is used to store the computer program and other programs and data required by the service invocation device. The readable storage medium can also be used to temporarily store data that has been output or will be output.

[0187] This application also provides a computer program product, which is stored in a storage medium and implements the power detection method provided in the above embodiments when executed by a computer.

[0188] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0189] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods of the various embodiments of this application.

[0190] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A power detection device, characterized in that, include: An imaging unit is configured to emit imaging light into the multi-core optical fiber to be inspected, receive reflected light obtained by the imaging light after reflection by the multi-core optical fiber, and generate a fiber core distribution image based on the reflected light, wherein the fiber core distribution image includes each fiber core of the multi-core optical fiber. A power detection unit is disposed opposite to the multi-core optical fiber and is used to receive the optical signal emitted by the multi-core optical fiber and determine the correspondence between at least one power information and at least one first position information based on the optical signal. The processing and display unit is connected to the imaging unit and the power detection unit, and is used to determine the second position information of each fiber core according to the fiber core distribution image, and to determine the power information of each fiber core according to the second position information of each fiber core and the correspondence.

2. The power detection device according to claim 1, characterized in that, The power detection device further includes an optical unit, which comprises: A semi-reflective and semi-transparent film is disposed between the imaging unit and the multi-core optical fiber to refract the imaging light into the multi-core optical fiber and refract the reflected light into the imaging unit.

3. The power detection device according to claim 2, characterized in that, The optical unit also includes: A microlens is disposed between the power detection unit and the multi-core optical fiber to collimate the optical signal emitted by the multi-core optical fiber.

4. The power detection device according to claim 1, characterized in that, The power detection device further includes: A calibration unit, connected to the processing and display unit and the power detection unit, is used to determine calibration data based on the link inherent loss correction information in the calibration unit, and send the calibration data to the processing and display unit. The calibration data is used to indicate the link loss of the link between the power detection unit and the processing and display unit. The processing and display unit is also used to calibrate the power information of each fiber core according to the calibration data.

5. A power detection method, applied to the power detection device as described in any one of claims 1 to 4, characterized in that, The method includes: The imaging unit of the power detection device emits imaging light into the multi-core optical fiber to be detected, receives the reflected light obtained by the reflection of the imaging light through the multi-core optical fiber, and generates a fiber core distribution image based on the reflected light, the fiber core distribution image including each fiber core of the multi-core optical fiber. The power detection unit of the power detection device receives the optical signal emitted by the multi-core optical fiber and determines the correspondence between at least one power information and at least one first position information based on the optical signal. The power detection device's processing and display unit determines the second position information of each fiber core based on the fiber core distribution image, and determines the power information of each fiber core based on the second position information of each fiber core and the corresponding relationship.

6. The power detection method according to claim 5, characterized in that, Determining the correspondence between at least one power information and at least one first position information based on the optical signal includes: The optical signal is converted into at least one photocurrent signal through at least one pixel region of the power detection unit; Based on the optical power of each photocurrent signal, the power information corresponding to a pixel region is determined, and the first position information of each pixel region on the power detection unit is determined. The correspondence is determined based on the power information and the first position information corresponding to each pixel region.

7. The power detection method according to claim 5, characterized in that, The step of determining the power information of each fiber core based on the second position information of each fiber core and the corresponding relationship includes: According to the preset mapping relationship, the second position information of each fiber core is mapped to the third position information on the power detection unit. The preset mapping relationship is the position mapping relationship between the transmitting surface of the multi-core optical fiber and the photosensitive surface of the power detection unit. The power information of each fiber core is determined based on the third position information corresponding to each fiber core and the corresponding relationship.

8. The power detection method according to claim 5, characterized in that, After determining the power information of each fiber core based on the second position information of each fiber core and the corresponding relationship, the method further includes: The calibration unit of the power detection device determines calibration data based on the inherent link loss correction information of the link between the power detection unit and the processing display unit. The calibration data is used to indicate the link loss of the link between the power detection unit and the processing display unit. The calibration data is then sent to the processing display unit. The power information of each fiber core is calibrated using the processing and display unit based on the calibration data.

9. A power detection device, characterized in that, The power detection device includes: a transmitting module, a receiving module, a generating module, and a determining module; The transmitting module is used to transmit imaging light to the multi-core optical fiber to be detected; The receiving module is used to receive the reflected light obtained by the imaging light emitted by the transmitting module after being reflected by the multi-core optical fiber; The generating module is used to generate a fiber core distribution image based on the reflected light received by the receiving module, wherein the fiber core distribution image includes each fiber core of the multi-core optical fiber; The receiving module is also used to receive the optical signal emitted by the multi-core optical fiber; The determining module is configured to determine a correspondence between at least one power information and at least one first position information based on the optical signal; and to determine the second position information of each fiber core based on the fiber core distribution image generated by the generating module, and to determine the power information of each fiber core based on the second position information of each fiber core and the correspondence.

10. The power detection device according to claim 9, characterized in that, The power detection device further includes: a conversion module; The conversion module is used to convert the optical signal into at least one photocurrent signal through at least one pixel area of ​​the power detection unit of the power detection device; The determining module is specifically used to determine the power information corresponding to a pixel region based on the optical power of each photocurrent signal, and to determine the first position information of each pixel region on the power detection unit; and to determine the correspondence based on the power information and the first position information corresponding to each pixel region.

11. The power detection device according to claim 9, characterized in that, The determining module is specifically used to determine the third position information of the second position information of each fiber core mapped onto the power detection unit according to a preset mapping relationship. The preset mapping relationship is the position mapping relationship between the transmitting surface of the multi-core optical fiber and the photosensitive surface of the power detection unit. The power information of each fiber core is determined based on the third position information corresponding to each fiber core and the corresponding relationship.

12. The power detection device according to claim 9, characterized in that, The power detection device further includes: a transmission module and a calibration module; The determining module is further configured to, after determining the power information of each fiber core according to the second position information of each fiber core and the corresponding relationship, determine calibration data according to the inherent link loss correction information of the link between the power detection unit of the power detection device and the processing and display unit of the power detection device, wherein the calibration data is used to indicate the link loss of the link between the power detection unit and the processing and display unit. The sending module is used to send the calibration data to the processing and display unit; The calibration module is used to calibrate the power information corresponding to each fiber core based on the calibration data determined by the determining module.

13. An electronic device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the power detection method as described in any one of claims 5-8.

14. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a computer, implement the power detection method as described in any one of claims 5-8.

15. A computer program product, characterized in that, The computer program product is stored in a storage medium, and when executed by a computer, the computer program product implements the power detection method as described in any one of claims 5-8.

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