Detection system and detection method for hollow-core optical fiber and related product

Abstract

The invention relates to the technical field of optical fiber detection, and particularly provides a detection system and a detection method for a hollow-core optical fiber, and a related product. The detection system for the hollow-core optical fiber comprises a gas storage device which is communicated with a first end of a to-be-detected hollow-core optical fiber and is used for storing gas which is conveyed into an anti-resonant cavity of the to-be-detected hollow-core optical fiber and has constant gas pressure; and the gas detection device is communicated with the second end of the to-be-detected hollow-core optical fiber and is used for detecting gas output by the anti-resonant cavity of the to-be-detected hollow-core optical fiber to obtain a detection result. According to the method, the quality of the hollow-core optical fiber can be effectively detected, the reliability of the hollow-core optical fiber put into use is ensured, and unnecessary waste of hollow-core optical fiber resources is avoided.

Description

Technical Field

[0001] The present disclosure relates to the field of optical fiber detection technology, and in particular to a detection system, a detection method and related products for hollow core optical fibers. Background Art

[0002] At present, hollow-core fiber (HCF) with air as the transmission medium has replaced the traditional optical fiber with "glass core" as the transmission medium. With its ultra-low latency, ultra-low nonlinearity, potential ultra-low loss and wider passband bandwidth, it can help the Optical Transport Network (OTN) system achieve greater transmission capacity, longer transmission distance and smaller transmission latency. Before and after using hollow-core fiber, the quality of the hollow-core fiber needs to be tested to determine whether the quality of the hollow-core fiber is qualified. How to effectively detect the quality of the hollow-core fiber before putting it into use is a technical problem that needs to be solved urgently. Summary of the invention

[0003] The present disclosure is proposed in view of the above problems. The present disclosure provides a detection system for hollow-core optical fiber, a detection method for hollow-core optical fiber, a detection device for hollow-core optical fiber, an electronic device, a computer-readable storage medium and a computer program product, which can effectively detect the quality of hollow-core optical fiber, ensure the reliability of hollow-core optical fiber in use, and avoid unnecessary waste of hollow-core optical fiber resources.

[0004] According to one aspect of the present disclosure, a detection system for hollow-core optical fibers is provided, comprising a gas storage device and a gas detection device. The gas storage device is connected to the first end of the hollow-core optical fiber to be detected, and is used to store gas with a constant pressure to be delivered to the anti-resonance cavity of the hollow-core optical fiber to be detected; the gas detection device is connected to the second end of the hollow-core optical fiber to be detected, and is used to detect the gas output through the anti-resonance cavity of the hollow-core optical fiber to be detected, and obtain a detection result.

[0005] In addition, according to the detection system of one aspect of the present disclosure, the above-mentioned detection results are used to characterize at least one of the following: the humidity in the hollow-core optical fiber to be detected; the impurity content in the hollow-core optical fiber to be detected; the air pressure difference corresponding to the anti-resonance cavity of the hollow-core optical fiber to be detected; wherein the air pressure difference is used to indicate whether the anti-resonance cavity of the hollow-core optical fiber to be detected is damaged.

[0006] In addition, the detection system according to one aspect of the present disclosure may also include: a gas pressure detection device, used to detect the gas pressure of the gas stored in the gas storage device; and the gas storage device is also used to: in response to the gas pressure value detected by the gas pressure detection device reaching a preset pressure value, deliver gas with a constant pressure into the anti-resonance cavity of the hollow-core optical fiber to be detected.

[0007] In addition, the detection system according to one aspect of the present disclosure may further include: a gas generating device, which is connected to the first port of the gas storage device and is used to transport the generated gas to the gas storage device.

[0008] In addition, the detection system according to one aspect of the present disclosure may further include: a connection component for connecting the second port of the gas storage device with the first end of the hollow-core optical fiber to be detected.

[0009] In addition, the detection system according to one aspect of the present disclosure may also include: a gas flow control switch, which is arranged on the connection component and is used to control the gas from the gas storage device through the connection component into the anti-resonance cavity of the hollow-core optical fiber to be detected.

[0010] In addition, the detection system according to one aspect of the present disclosure may further include: a gas delivery device connected to the third port of the gas storage device, used to deliver gas with a constant pressure into the anti-resonance cavity of the hollow-core optical fiber to be detected.

[0011] In addition, in a detection system according to one aspect of the present disclosure, the above-mentioned gas delivery device is specifically used to: in response to the gas flow velocity of the gas with constant pressure delivered from the gas storage device to the anti-resonance cavity of the hollow-core optical fiber to be detected being less than a preset velocity value, or the length of the hollow-core optical fiber to be detected being greater than a preset length threshold, deliver the gas with constant pressure to the anti-resonance cavity of the hollow-core optical fiber to be detected.

[0012] In addition, according to a detection system in one aspect of the present disclosure, the gas detection device includes a plurality of detection probes; wherein the number of the plurality of detection probes is greater than or equal to the number of anti-resonance cavities in the hollow-core optical fiber to be detected.

[0013] In addition, according to the detection system of one aspect of the present disclosure, the above-mentioned gas detection device also includes a communication module for sending the detection result to the detection terminal.

[0014] According to another aspect of the present disclosure, a method for detecting hollow-core optical fibers is provided, comprising: delivering a gas having a constant pressure into an anti-resonance cavity of the hollow-core optical fiber to be detected; and detecting the gas output from the anti-resonance cavity of the hollow-core optical fiber to be detected to obtain a detection result.

[0015] In addition, according to the detection method of one aspect of the present disclosure, the above-mentioned detection results are used to characterize at least one of the following: the humidity in the hollow-core optical fiber to be detected; the impurity content in the hollow-core optical fiber to be detected; the air pressure difference corresponding to the anti-resonance cavity of the hollow-core optical fiber to be detected; wherein the air pressure difference is used to indicate whether the anti-resonance cavity of the hollow-core optical fiber to be detected is damaged.

[0016] According to another aspect of the present disclosure, a detection device for hollow-core optical fiber is provided, comprising: a delivery module and a detection module. The delivery module is configured to deliver a gas having a constant pressure into the anti-resonance cavity of the hollow-core optical fiber to be detected; and the detection module is configured to detect the gas outputted from the anti-resonance cavity of the hollow-core optical fiber to be detected to obtain a detection result.

[0017] In addition, according to the detection device of one aspect of the present disclosure, the above-mentioned detection results are used to characterize at least one of the following: the humidity in the hollow-core optical fiber to be detected; the impurity content in the hollow-core optical fiber to be detected; the air pressure difference corresponding to the anti-resonance cavity of the hollow-core optical fiber to be detected; wherein the air pressure difference is used to indicate whether the anti-resonance cavity of the hollow-core optical fiber to be detected is damaged.

[0018] According to another aspect of the present disclosure, an electronic device is provided, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and when the instructions are executed by the at least one processor, any of the above detection methods for hollow-core optical fibers can be implemented.

[0019] According to another aspect of the present disclosure, a non-transitory computer-readable storage medium is provided for storing computer-readable instructions. When the computer-readable instructions are executed by a computer, the computer executes any of the above detection methods for hollow-core optical fibers.

[0020] According to another aspect of the present disclosure, a computer program product including a computer program is provided. When the computer program is executed by a processor, the processor executes any of the above detection methods for hollow-core optical fibers.

[0021] As will be described in detail below, through the detection scheme for hollow-core optical fibers, gas with a constant air pressure is passed through the anti-resonance cavity inside the hollow-core optical fiber to be detected, and the quality of the air flowing through the hollow-core optical fiber is detected to obtain corresponding detection results. In this way, effective detection of the quality of the hollow-core optical fiber can be achieved, ensuring the reliability of the hollow-core optical fiber put into use and avoiding unnecessary waste of hollow-core optical fiber resources.

[0022] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and other purposes, features and advantages of the present disclosure will become more apparent by describing the embodiments of the present disclosure in more detail in conjunction with the accompanying drawings. The accompanying drawings are used to provide a further understanding of the embodiments of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the present disclosure and do not constitute a limitation of the present disclosure. In the accompanying drawings, the same reference numerals generally represent the same components or steps.

[0024] Figure 1 is a block diagram illustrating a detection system for a hollow core optical fiber according to one embodiment of the present disclosure.

[0025] Figure 2 The figure is a schematic diagram showing the composition of a detection system for a hollow-core optical fiber according to an embodiment of the present disclosure.

[0026] Figure 3 yes Figure 2 The block diagram shown is a gas detection device in a detection system for hollow core optical fiber.

[0027] Figure 4 is a flow chart illustrating a detection method for a hollow core optical fiber according to one embodiment of the present disclosure.

[0028] Figure 5 is a block diagram illustrating a detection device for a hollow core optical fiber according to an embodiment of the present disclosure.

[0029] Figure 6 is a hardware block diagram illustrating an electronic device according to an embodiment of the present disclosure.

[0030] Figure 7 is a schematic diagram illustrating a computer-readable storage medium according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present disclosure more obvious, the exemplary embodiments according to the present disclosure will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments of the present disclosure, and it should be understood that the present disclosure is not limited to the exemplary embodiments described here.

[0032] Hollow core optical fiber HCF, which uses air as the transmission medium, replaces the traditional optical fiber that uses "glass core" as the transmission medium. With its ultra-low latency, ultra-low nonlinearity, potential ultra-low loss and wider passband bandwidth, it can help OTN systems achieve greater transmission capacity, longer transmission distance and smaller transmission latency. It is the next generation of optical fiber in the development of communication networks. Among them, there are many types of hollow core optical fibers.

[0033] The anti-resonance cavity inside the hollow-core optical fiber is particularly sensitive to the external environment, especially the moisture in the air and the dust suspended in the air. Once these impurities enter the hollow-core optical fiber, they can easily damage the anti-resonance cavity inside the hollow-core optical fiber. For example, the size of dust particles suspended in the air generally ranges from a few microns to hundreds of microns, which is usually larger than the thickness of the anti-resonance cavity (the wall thickness of the anti-resonance cavity is generally a few microns). Once the dust particles suspended in the air adhere to the anti-resonance cavity, they will directly destroy the anti-resonance cavity.

[0034] At the same time, impurities such as water vapor and dust are easily introduced into hollow-core optical fibers during the manufacturing, storage, cabling, and installation processes, which affect the quality of the optical fiber. In any scenario, the quality of the hollow-core optical fiber needs to be tested before and after using the hollow-core optical fiber to determine whether the quality of the hollow-core optical fiber is qualified. If it is unqualified, the impurities inside the hollow-core optical fiber need to be processed until the test is qualified. It can be seen that if the inside of the hollow-core optical fiber is not tested, the quality of the hollow-core optical fiber cannot be guaranteed, and if there are impurities inside the hollow-core optical fiber, the link loss of the hollow-core optical fiber will also increase, and if the manufactured products cannot be used, it will cause waste of resources. Therefore, before the hollow-core optical fiber is put into use, it is necessary to test the inside of the hollow-core optical fiber to ensure the quality of the hollow-core optical fiber and avoid increasing its link loss and waste of resources.

[0035] The following will refer to Figures 1 to 3 A detection system for a hollow core optical fiber according to an embodiment of the present disclosure is described.

[0036] Figure 1 is a block diagram illustrating a detection system for hollow core optical fiber according to an embodiment of the present disclosure. Figure 1 As shown, the detection system for hollow-core optical fiber includes: a gas storage device 101 and a gas detection device 102. The gas storage device 101 is connected to the first end of the hollow-core optical fiber to be detected, and is used to store gas with a constant pressure to be delivered to the anti-resonance cavity of the hollow-core optical fiber to be detected; the gas detection device 102 is connected to the second end of the hollow-core optical fiber to be detected, and is used to detect the gas output through the anti-resonance cavity of the hollow-core optical fiber to be detected to obtain a detection result.

[0037] In the embodiments of the present disclosure, by connecting the first end and the second end of the hollow-core optical fiber to be detected to the gas storage device 101 and the gas detection device 102 respectively, and utilizing the gas pressure difference at both ends of the hollow-core optical fiber, the gas with a constant pressure stored in the gas storage device 101 can reach the gas detection device 102 via the anti-resonance cavity inside the hollow-core optical fiber, thereby performing quality detection on the air flowing through the hollow-core optical fiber through the gas detection device 102 to obtain corresponding detection results. In this way, effective detection of the quality of the hollow-core optical fiber can be achieved, thereby ensuring the reliability of the hollow-core optical fiber put into use and avoiding unnecessary waste of hollow-core optical fiber resources.

[0038] In an exemplary embodiment of the present disclosure, the gas storage device 101 may be a gas volumetric device. The gas storage device 101 or the gas volumetric device can ensure a constant and sufficient gas flow rate during the gas delivery process by collecting and storing gas, thereby avoiding the detection results being affected by insufficient gas. It should be noted that the shape and size of the gas volumetric device are set according to the specific situation and are not specifically limited here.

[0039] In an example embodiment of the present disclosure, the above-mentioned detection results are used to characterize at least one of the following: the humidity in the hollow-core optical fiber to be detected; the impurity content in the hollow-core optical fiber to be detected; the air pressure difference corresponding to the anti-resonance cavity of the hollow-core optical fiber to be detected; wherein the air pressure difference is used to indicate whether the anti-resonance cavity of the hollow-core optical fiber to be detected is damaged.

[0040] In this embodiment, one or more detection items or indicators can be flexibly set. At the same time, considering that the gas flowing through the hollow-core optical fiber to be detected can bring out moisture, impurities, etc. in the cavity, the detection results corresponding to the set detection items or indicators can be obtained by detecting the gas flowing out of the hollow-core optical fiber to be detected, so as to achieve effective control of the quality of the hollow-core optical fiber. Among them, if the detection result detected by the gas detection device 102 has at least one of the following conditions, it means that the hollow-core optical fiber is unqualified or the quality is not up to standard: the humidity in the hollow-core optical fiber to be detected exceeds the corresponding set humidity threshold; the impurity (such as dust) content of the hollow-core optical fiber to be detected exceeds the corresponding set content threshold; the air pressure difference corresponding to the anti-resonance cavity of the hollow-core optical fiber to be detected changes. Among them, the size of each set value can be flexibly set according to the specific situation, and is not specifically limited here.

[0041] Among them, the above-mentioned air pressure difference may refer to the difference between the air pressure detected by the gas detection device 102 and the constant air pressure of the gas delivered by the gas storage device 101, wherein the specific value of the constant air pressure may be flexibly set depending on the specific situation and is not specifically limited herein; and the above-mentioned air pressure difference is used to indicate whether the anti-resonance cavity of the hollow-core optical fiber to be detected is damaged, which can be understood as the gas delivered by the gas storage device 101 to the anti-resonance cavity of the hollow-core optical fiber vibrates during the process of passing through the anti-resonance cavity, indicating that the anti-resonance cavity of the hollow-core optical fiber is damaged. Due to the existence of the damage, the gas will enter other different anti-resonance cavities from the current anti-resonance cavity where the gas storage device 101 delivers the gas, resulting in the air pressure difference between the air pressure detected by the gas detection device 102 and the constant air pressure delivered by the gas storage device 101 no longer being constant, but having changed.

[0042] In the above embodiment, in the process of delivering gas into the hollow-core optical fiber to be detected to realize detection, the purpose of purifying the anti-resonance cavity can also be achieved.

[0043] In an exemplary embodiment of the present disclosure, Figure 2 As shown, the above detection system for hollow-core optical fiber may further include: an air pressure detection device 103. The air pressure detection device 103 is used to detect the air pressure of the gas stored in the gas storage device 101; and the gas storage device 101 is also used to: in response to the air pressure value detected by the air pressure detection device 103 reaching a preset air pressure value, deliver gas with a constant air pressure into the anti-resonance cavity of the hollow-core optical fiber to be detected.

[0044] In this embodiment, the air pressure detection device 103 is set to detect the air pressure of the gas stored in the gas storage device 101 in real time, and when it is detected that the air pressure value of the gas stored in the gas storage device 101 reaches the preset air pressure value, the gas storage device 101 can be prompted to transport gas to the hollow-core optical fiber. At this time, the gas reaching the preset air pressure value can ensure a constant and sufficient gas flow rate, thereby ensuring the feasibility and reliability of the detection of the hollow-core optical fiber. At the same time, the air pressure detection device 103 can also monitor in real time whether the output gas is maintained at a constant air pressure during the gas delivery process. Among them, the preset air pressure value can be greater than one atmospheric pressure (or a value greater than the air pressure corresponding to the second end of the hollow-core optical fiber to be detected) to ensure that the gas can flow, and its specific value can be flexibly set according to the specific situation, and it can be equal to or close to the value of the above-mentioned constant air pressure, which is not specifically limited here.

[0045] In an exemplary embodiment of the present disclosure, the air pressure detection device 103 may be installed on the gas storage device 101. Specifically, the air pressure detection device 103 may be an air pressure sensor.

[0046] In an exemplary embodiment of the present disclosure, a display screen may be provided on the gas storage device 101, through which the gas storage status in the gas storage device 101 may be monitored; and parameters such as gas pressure may be set through the display screen before gas is delivered to the gas storage device 101; wherein the display screen may be a touch display screen. Furthermore, the gas storage device 101 may also include a storage unit for storing the parameters such as gas pressure.

[0047] In an exemplary embodiment of the present disclosure, the gas storage device 101 may further include: a power supply module and an alarm module; wherein the power supply module may provide energy for the normal operation of the gas storage device 101, etc., and the alarm module may issue an alarm when the air pressure detection device 103 detects that the air pressure of the gas stored in the gas storage device 101 reaches a preset air pressure value, and the alarm may be in the form of a combination of one or more of sound, light, etc.

[0048] In an exemplary embodiment of the present disclosure, Figure 2 As shown, the above detection system for hollow core optical fiber may further include: a gas generating device 104. The gas generating device 104 is connected to the first port of the gas storage device 101, and is used to deliver the generated gas to the gas storage device 101.

[0049] In this embodiment, the gas generating device 104 may include a material for generating gas, so as to generate the gas for detection in a corresponding manner (such as a chemical reaction). Furthermore, the purity of the generated gas can also be detected by the gas generating device 104. Among them, the gas generated by the gas generating device 104 can be nitrogen, and of course it can also be other gases that will not increase the content of moisture, impurities, etc. when the hollow core optical fiber to be detected is detected, or will not react chemically with other gas components in the air to generate impurities (such as water, etc.). It should be noted that the generated gas cannot contain water vapor to avoid affecting the accuracy of the detection result; and based on the different types of generated gas, the corresponding materials used may also be different, and the gas generating device 104 may also be different, depending on the specific situation, and is not specifically limited here. Among them, the above-mentioned first port can also be called an air inlet.

[0050] In another exemplary embodiment of the present disclosure, gas may be pre-stored by a gas tank or the like, so that gas with a constant pressure can be directly provided to the gas storage device 101 when in use, and in this case, there is no need to set up the gas generating device 104.

[0051] In an exemplary embodiment of the present disclosure, Figure 2As shown, the above detection system for hollow-core optical fiber may further include: a connection component 105. The connection component 105 is used to connect the second port of the gas storage device 101 with the first end of the hollow-core optical fiber to be detected. In this embodiment, the connection component 105 can ensure the continuity of the gas flow between the gas storage device 101 and the hollow-core optical fiber to be detected, and sufficient gas can enter the hollow-core optical fiber to be detected for detection.

[0052] In the above embodiment, the connecting component 105 may include a hose, and specifically, the connecting component 105 may be fixedly connected to the second port (such as the gas outlet) of the gas storage device 101 through a bolt interface or other connection methods (such as a movable connector) to ensure sealing and avoid gas leakage.

[0053] In an exemplary embodiment of the present disclosure, Figure 2 As shown, the above-mentioned detection system for hollow-core optical fiber may also include: a gas flow control switch. The gas flow control switch is arranged on the connection component 105, and is used to control the gas from the gas storage device 101 to enter the anti-resonance cavity of the hollow-core optical fiber to be detected through the connection component 105. In this embodiment, through the gas flow control switch arranged on the connection component 105, it is possible to effectively control when the gas stored in the gas storage device 101 is transported to the hollow-core optical fiber to be detected through the connection component 105 and when the transport is stopped. When it is necessary to transport gas to the hollow-core optical fiber to be detected, it can be in an open state, and when it is not necessary to transport gas to the hollow-core optical fiber to be detected, it can be in a closed state, so as to block one end of the anti-resonance cavity of the hollow-core optical fiber to be detected, and prevent the gas from being reversely sucked back into the gas storage device 101.

[0054] Furthermore, the gas flow control switch can be used to control the flow rate of the gas delivered from the gas storage device 101 to the hollow-core optical fiber to be detected. Furthermore, the detection system for hollow-core optical fiber can also include a gas flow detection component for counting the flow rate of the gas delivered from the gas storage device 101 to the hollow-core optical fiber to be detected, and the working state of the gas flow control switch can be controlled accordingly.

[0055] In an exemplary embodiment of the present disclosure, Figure 2 As shown, the above detection system for hollow core optical fiber may further include: a gas delivery device 106. The gas delivery device 106 is connected to the third port of the gas storage device 101, and is used to deliver gas with a constant pressure to the anti-resonance cavity of the hollow core optical fiber to be detected.

[0056] In this embodiment, the gas delivery device 106 can be used to assist the gas to flow in the hollow-core optical fiber to be detected. In particular, when the gas pressure difference at both ends of the hollow-core optical fiber is small and affects the flow of the gas, the gas delivery device 106 can be turned on to discharge the gas from the hollow-core optical fiber so that the gas detection device 102 can perform detection smoothly, thereby improving the detection efficiency.

[0057] In an exemplary embodiment of the present disclosure, the gas delivery device 106 is specifically used to deliver the gas with constant pressure into the anti-resonance cavity of the hollow-core optical fiber to be detected in response to the gas flow velocity of the gas with constant pressure delivered by the gas storage device 101 to the anti-resonance cavity of the hollow-core optical fiber to be detected being less than a preset velocity value, or the length of the hollow-core optical fiber to be detected being greater than a preset length threshold.

[0058] In this embodiment, by controlling the timing of the operation of the gas delivery device 106, when the air flow velocity delivered to the anti-resonance cavity of the hollow-core optical fiber to be detected is small or the length of the hollow-core optical fiber to be detected is long, the flow efficiency of the gas in the hollow-core optical fiber to be detected may be affected. By turning on the gas delivery device 106, the gas can be assisted to flow in the hollow-core optical fiber to be detected, thereby improving the detection efficiency.

[0059] In another exemplary embodiment of the present disclosure, the gas delivery device 106 can be specifically started in the following situation to improve the detection efficiency: in response to the gas delivered to the anti-resonance cavity of the hollow-core optical fiber to be detected, the gas pressure is the same before and after flowing through the anti-resonance cavity.

[0060] In another exemplary embodiment of the present disclosure, the gas delivery device 106 can be kept in an open state during the process of delivering gas from the gas storage device 101 to the anti-resonance cavity of the hollow-core optical fiber to be detected, so as to assist the flow of gas in the hollow-core optical fiber to be detected.

[0061] In the above embodiment, the gas delivery device 106 may be a blowing device (such as a blower), and the third port of the corresponding gas storage device 101 may be an air inlet or an air outlet.

[0062] In an exemplary embodiment of the present disclosure, for the above Figure 1 or Figure 2 The gas detection device 102 shown in Figure 3As shown, a plurality of detection probes may be included. The number of the plurality of detection probes is greater than or equal to the number of anti-resonance cavities in the hollow-core optical fiber to be detected. The plurality of detection probes may be distinguished based on the detection functions they possess, and the type of detection function may correspond to the type of detection result to be obtained. In this embodiment, by setting the number of detection probes to be not less than the number of anti-resonance cavities in the hollow-core optical fiber to be detected, different detection probes may be respectively corresponded to different anti-resonance cavities during the detection process, and the detection results that can be obtained by the plurality of detection probes may be obtained synchronously, thereby improving the detection efficiency. It should be further noted that after the plurality of hollow-core optical fibers to be detected are cabled, the plurality of detection probes may be respectively used to detect different hollow-core optical fibers to be detected. In this case, the plurality of detection probes may be used to detect the same detection item or index, or may be used to detect different detection items or indexes, depending on the specific detection requirements, which are not specifically limited here.

[0063] Furthermore, in the embodiments of the present disclosure, a corresponding detachable probe protection device, such as a detachable protective cover cap, may be provided for each of the above-mentioned detection probes to prevent the detection probes from being damaged.

[0064] In some embodiments of the present disclosure, the above-mentioned multiple detection probes may include at least two of the following: an air pressure sensor, a humidity sensor, and an optical scattering sensor, so that the corresponding detection results can be accurately obtained. Among them, the air pressure sensor can be used to detect whether there is air pressure in each anti-resonance cavity to determine the quality of the anti-resonance cavity in the hollow-core optical fiber. Specifically, if there is air pressure, it means that the cavity wall of the anti-resonance cavity is damaged; the humidity sensor can be used to determine whether the moisture content inside the hollow-core optical fiber exceeds the standard; and the optical scattering sensor (such as a laser sensor) can be used to detect whether the impurity content (such as suspended dust) in each anti-resonance cavity in the hollow-core optical fiber exceeds the standard.

[0065] Furthermore, in some embodiments of the present disclosure, the gas detection device 102 may also include at least one of a memory, a display, and a power supply module, and the memory may be used to store the maximum limit values ​​corresponding to the moisture content and the impurity content inside the hollow-core optical fiber to be detected, respectively, and the display may be used to display the detection results and the maximum limit values ​​obtained by the gas detection device 102.

[0066] In an exemplary embodiment of the present disclosure, the gas detection device 102 may further include a communication module 1021 for sending the detection result to the detection terminal. In this way, the detection result obtained by the gas detection device 102 may be sent to the detection terminal by wireless transmission through the communication module 1021; wherein the wireless transmission method includes but is not limited to one or more of a mobile communication module (such as a fourth generation mobile communication technology (4G) communication module or a fifth generation mobile communication technology (5G) communication module), Internet of Things (IoT), Radio Frequency Identification (RFID), and Near Field Communication (NFC).

[0067] Further optionally, the gas detection device 102 may also include: Figure 3 As shown, there is a display module 1022 for displaying, for example, the above-mentioned detection results, an indication module 1023 for indicating, for example, the working status of the gas detection device 102, a storage module 1024 for storing, for example, the detection results, and a power supply module 1025 for providing energy to ensure the normal operation of the gas detection device 102.

[0068] In an exemplary embodiment of the present disclosure, the detection terminal may be a handheld independent detection terminal directly connected to the gas detection device 102; the detection terminal may also be an independent application software (Application, APP) that exchanges information with the gas detection device 102 via wireless communication.

[0069] In another exemplary embodiment of the present disclosure, the detection terminal and the gas detection device 102 may be configured as an integrated structure, which may be a handheld independent detection terminal, and the detection terminal may include the above-mentioned multiple detection probes, a memory (which may correspond to the above-mentioned storage module 1024), a display (which may correspond to the above-mentioned display module 1022), a battery (which may correspond to the above-mentioned power module 1025), etc.; wherein each detection probe may be used as a peripheral device of the detection terminal, and the memory, display, battery, etc. may be provided in the detection terminal, and in this case, the detection terminal may not be provided with the above-mentioned communication module 1021. Furthermore, the detection terminal may also include an indicator light, which may be used to indicate the working status of the detection terminal, etc.

[0070] For ease of understanding, in a specific scenario, combined with the relevant components of the above-mentioned hollow-core optical fiber detection system, the operation process of detecting the hollow-core optical fiber is described, which may include the following contents: (1) Connect test instruments, test indoor and outdoor environments (such as air pressure and humidity), calibrate test terminals, and set test sensitivity parameters.

[0071] (2) Check the air tightness of the hollow core optical fiber connection components.

[0072] (3) Input the air pressure parameters input by the hollow-core optical fiber into the air pressure sensor installed on the gas volume device.

[0073] (4) Start the gas generator to generate gas and input it into the gas volume. When the gas pressure in the gas volume reaches the set pressure parameter, the gas flow control switch will automatically open to deliver gas into the hollow-core optical fiber.

[0074] (5) At the same time, turn on the blower to supply air to the gas volume device to speed up the gas flow and improve the gas detection efficiency.

[0075] (6) At the other end of the hollow-core fiber, insert a detection probe into the hole corresponding to each anti-resonance cavity in the hollow-core fiber to detect moisture, impurities, etc. brought by the gas flow. If the quality of the anti-resonance cavity in the hollow-core fiber is to be detected, it is necessary to block the inner hole of the hollow-core fiber on the above-mentioned connection component and only retain the hole corresponding to one of the anti-resonance cavities so that the gas flow can pass through the reserved hole. If the quality of the anti-resonance cavity is qualified during the whole process, that is, there are no defects in the anti-resonance cavity, the detection probe will not detect the gas flow in the anti-resonance cavity. Once detected, it indicates that the wall of the anti-resonance cavity in the hollow-core fiber is damaged.

[0076] During the test, the indicator light on the test terminal will flash, and the detected moisture and impurity content will be displayed on the APP to indicate whether the quality of the hollow-core optical fiber is qualified. If it exceeds the standard, the moisture and impurities in the hollow-core optical fiber should be treated. For example, by continuing to supply air to the hollow-core optical fiber, the moisture and impurities in the hollow-core optical fiber can be removed by the airflow to achieve the effect of purifying the quality of the hollow-core optical fiber.

[0077] Figure 4 is a flow chart further illustrating a detection method for a hollow core optical fiber according to an embodiment of the present disclosure.

[0078] In step 301, gas with a constant pressure is delivered into the anti-resonance cavity of the hollow-core optical fiber to be detected.

[0079] In one implementation, the above Figure 1-2 The gas storage device 101 in the corresponding embodiment delivers gas with a constant pressure into the anti-resonance cavity of the hollow-core optical fiber to be detected.

[0080] In step 302, the gas output from the anti-resonance cavity of the hollow-core optical fiber to be detected is detected to obtain a detection result.

[0081] In one implementation, the above Figure 1-2 The gas detection device 102 in the corresponding embodiment detects the gas output from the anti-resonance cavity of the hollow-core optical fiber to be detected.

[0082] In the detection method of the embodiment of the present disclosure, a gas with a constant pressure is delivered into the anti-resonance cavity of the hollow-core optical fiber to be detected, and the quality of the gas output through the anti-resonance cavity of the hollow-core optical fiber to be detected is detected to obtain the corresponding detection result. In this way, by utilizing the gas pressure difference at both ends of the hollow-core optical fiber, the quality of the hollow-core optical fiber can be effectively detected, the reliability of the hollow-core optical fiber put into use can be ensured, and unnecessary waste of hollow-core optical fiber resources can be avoided.

[0083] In an example embodiment of the present disclosure, the above-mentioned detection results are used to characterize at least one of the following: the humidity in the hollow-core optical fiber to be detected; the impurity content in the hollow-core optical fiber to be detected; the air pressure difference corresponding to the anti-resonance cavity of the hollow-core optical fiber to be detected; wherein the air pressure difference is used to indicate whether the anti-resonance cavity of the hollow-core optical fiber to be detected is damaged.

[0084] In this embodiment, one or more detection items or indicators can be flexibly set, and the quality of the hollow-core optical fiber can be effectively controlled by detecting the set detection items or indicators. Among them, if the above-mentioned detection results have at least one of the following situations, it means that the hollow-core optical fiber is unqualified or the quality does not meet the standards: the humidity in the hollow-core optical fiber to be detected exceeds the corresponding set humidity threshold; the impurity (such as dust) content of the hollow-core optical fiber to be detected exceeds the corresponding set content threshold; the air pressure difference corresponding to the anti-resonance cavity of the hollow-core optical fiber to be detected changes. Among them, the size of each set value can be flexibly set according to the specific situation, and no specific limitation is made here. It should be noted that the description related to the above-mentioned detection results can refer to the above-mentioned Figure 2-3 The same contents in the corresponding embodiments will not be repeated here.

[0085] It should be noted that the specific operations and other related contents of the above step 302 in the embodiment of the present disclosure for detecting the gas outputted from the anti-resonant cavity of the hollow-core optical fiber to be detected can be referred to the above Figure 1-2 The description of the corresponding or identical parts in the corresponding embodiments will not be repeated here.

[0086] Figure 5 is a block diagram further illustrating a detection device for a hollow core optical fiber according to an embodiment of the present disclosure. Figure 5The detection device 500 for hollow core optical fiber shown can implement the detection method for hollow core optical fiber as described above. The detection device 500 for hollow core optical fiber can be implemented in various ways by hardware alone, software alone, or a combination thereof, and the present disclosure is not limited to any of them. The detection device 500 for hollow core optical fiber according to an embodiment of the present disclosure can be deployed in various electronic devices.

[0087] like Figure 5 As shown, the detection device 500 for hollow core optical fiber includes: a delivery module 501 and a detection module 502 .

[0088] The delivery module 501 is configured to deliver gas with a constant pressure into the anti-resonance cavity of the hollow-core optical fiber to be detected; the detection module 502 is configured to detect the gas output from the anti-resonance cavity of the hollow-core optical fiber to be detected to obtain a detection result.

[0089] In the embodiment of the present disclosure, in the detection device 500 for hollow core optical fiber, the specific processing of the delivery module 501 and the detection module 502 and the technical effects thereof can be referred to Figure 4 The relevant descriptions of steps 301 - 302 in the corresponding embodiment are not repeated here.

[0090] In an example embodiment of the present disclosure, the above-mentioned detection results are used to characterize at least one of the following: the humidity in the hollow-core optical fiber to be detected; the impurity content in the hollow-core optical fiber to be detected; the air pressure difference corresponding to the anti-resonance cavity of the hollow-core optical fiber to be detected; wherein the air pressure difference is used to indicate whether the anti-resonance cavity of the hollow-core optical fiber to be detected is damaged.

[0091] According to the detection device for hollow-core optical fibers according to the embodiment of the present disclosure, a gas with a constant air pressure is passed through the anti-resonance cavity inside the hollow-core optical fiber to be detected, and the quality of the air flowing through the hollow-core optical fiber is detected to obtain corresponding detection results. In this way, effective detection of the quality of the hollow-core optical fiber can be achieved, thereby ensuring the reliability of the hollow-core optical fiber put into use and avoiding unnecessary waste of hollow-core optical fiber resources.

[0092] Figure 6 is a hardware block diagram illustrating an electronic device according to an embodiment of the present disclosure. Figure 6A schematic block diagram of an example electronic device 600 that can be used to implement an embodiment of the present disclosure is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present disclosure described and / or required herein.

[0093] like Figure 6 As shown, the device 600 includes a computing unit 601, which can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) 602 or a computer program loaded from a storage unit 608 into a random access memory (RAM) 603. In the RAM 603, various programs and data required for the operation of the device 600 can also be stored. The computing unit 601, the ROM 602, and the RAM 603 are connected to each other via a bus 604. An input / output (I / O) interface 605 is also connected to the bus 604.

[0094] A number of components in the device 600 are connected to the I / O interface 605, including: an input unit 606, such as a keyboard, a mouse, etc.; an output unit 607, such as various types of displays, speakers, etc.; a storage unit 608, such as a disk, an optical disk, etc.; and a communication unit 609, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 609 allows the device 600 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0095] The computing unit 601 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the computing unit 601 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, digital signal processors (DSPs), and any appropriate processors, controllers, microcontrollers, etc. The computing unit 601 performs the various methods and processes described above, such as a commodity recommendation method. For example, in some embodiments, the commodity recommendation method may be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit 608. In some embodiments, part or all of the computer program may be loaded and / or installed on the device 600 via the ROM 502 and / or the communication unit 609. When the computer program is loaded into the RAM 603 and executed by the computing unit 601, one or more steps of the commodity recommendation method described above may be performed. Alternatively, in other embodiments, the computing unit 601 may be configured to perform the commodity recommendation method in any other appropriate manner (e.g., by means of firmware).

[0096] Figure 7 is a schematic diagram illustrating a non-transitory computer-readable storage medium according to an embodiment of the present disclosure. Figure 7 As shown, a computer-readable storage medium 700 according to an embodiment of the present disclosure has computer-readable instructions 701 stored thereon. When the computer-readable instructions 701 are executed by a processor, the detection method for hollow-core optical fiber described with reference to the above figures is executed. The computer-readable storage medium includes, but is not limited to, for example, volatile memory and / or non-volatile memory. The volatile memory may, for example, include a random access memory (RAM) and / or a cache memory (cache), etc. The non-volatile memory may, for example, include a read-only memory (ROM), a hard disk, a flash memory, an optical disk, a magnetic disk, etc.

[0097] A computer program product according to an embodiment of the present disclosure includes a computer program. When the computer program is executed by a processor, the computer program performs the detection method for hollow-core optical fiber described with reference to any of the above embodiments.

[0098] The detection system, detection method and related products for hollow-core optical fibers according to the embodiments of the present disclosure are described above with reference to the accompanying drawings. Through the detection scheme for hollow-core optical fibers, a gas with a constant air pressure is passed through the anti-resonance cavity inside the hollow-core optical fiber to be detected, and the quality of the air flowing through the hollow-core optical fiber is detected to obtain corresponding detection results. In this way, effective detection of the quality of the hollow-core optical fiber can be achieved, ensuring the reliability of the hollow-core optical fiber put into use and avoiding unnecessary waste of hollow-core optical fiber resources.

[0099] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this disclosure.

[0100] The basic principles of the present disclosure are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present disclosure are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present disclosure. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, and are not limitations. The above details do not limit the present disclosure to the necessity of adopting the above specific details to be implemented.

[0101] The block diagrams of the devices, apparatuses, equipment, and systems involved in this disclosure are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagrams. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including," "comprising," "having," and the like are open words, referring to "including but not limited to," and can be used interchangeably therewith. The words "or" and "and" used herein refer to the words "and / or," and can be used interchangeably therewith, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to," and can be used interchangeably therewith.

[0102] Additionally, as used herein, "or" used in a list of items beginning with "at least one" indicates a separate list, so that, for example, a list of "at least one of A, B, or C" means A or B or C, or AB or AC or BC, or ABC (i.e., A and B and C). Furthermore, the word "exemplary" does not mean that the example described is preferred or better than other examples.

[0103] It should also be noted that in the system and method of the present disclosure, each component or each step can be decomposed and / or recombined. Such decomposition and / or recombination should be regarded as an equivalent scheme of the present disclosure. And the terms "first", "second", "third", "fourth", fifth, etc. involved in the present disclosure are used to distinguish similar objects, and are not used to describe a specific order or sequence, etc.

[0104] Various changes, substitutions, and modifications of the techniques described herein may be made without departing from the teachings defined by the appended claims. Furthermore, the scope of the claims of the present disclosure is not limited to the specific aspects of the processes, machines, manufactures, compositions of events, means, methods, and actions described above. Currently existing or later to be developed processes, machines, manufactures, compositions of events, means, methods, or actions that perform substantially the same functions or achieve substantially the same results as the corresponding aspects described herein may be utilized. Thus, the appended claims include such processes, machines, manufactures, compositions of events, means, methods, or actions within their scope.

[0105] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present disclosure. Therefore, the present disclosure is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0106] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present disclosure to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A detection system for hollow core optical fiber, characterized in that: include: A gas storage device, connected to the first end of the hollow-core optical fiber to be detected, and used for storing gas with a constant pressure to be delivered into the anti-resonance cavity of the hollow-core optical fiber to be detected; The gas detection device is connected to the second end of the hollow-core optical fiber to be detected, and is used to detect the gas output through the anti-resonance cavity of the hollow-core optical fiber to be detected to obtain a detection result.

2. The detection system according to claim 1, characterized in that: The test result is used to characterize at least one of the following: The humidity in the hollow-core optical fiber to be detected; The impurity content in the hollow-core optical fiber to be detected; The air pressure difference value corresponding to the anti-resonance cavity of the hollow-core optical fiber to be detected; wherein the air pressure difference value is used to indicate whether the anti-resonance cavity of the hollow-core optical fiber to be detected is damaged.

3. The detection system according to claim 1, characterized in that: Also includes: A gas pressure detection device, used to detect the gas pressure of the gas stored in the gas storage device; as well as The gas storage device is also used for: in response to the air pressure value detected by the air pressure detection device reaching a preset air pressure value, delivering the gas with constant air pressure into the anti-resonance cavity of the hollow-core optical fiber to be detected.

4. The detection system according to claim 1, characterized in that: Also includes: A gas generating device is communicated with the first port of the gas storage device and is used for delivering the generated gas to the gas storage device.

5. The detection system according to claim 1, characterized in that: Also includes: A connecting assembly is used to connect the second port of the gas storage device with the first end of the hollow-core optical fiber to be detected.

6. The detection system according to claim 5, characterized in that: Also includes: A gas flow control switch is arranged on the connection component and is used to control the gas from the gas storage device through the connection component into the anti-resonance cavity of the hollow-core optical fiber to be detected.

7. The detection system according to claim 1, characterized in that: Also includes: A gas delivery device is connected to the third port of the gas storage device and is used to deliver the gas with a constant pressure into the anti-resonance cavity of the hollow-core optical fiber to be detected.

8. The detection system according to claim 7, characterized in that: The gas delivery device is used for: In response to the gas flow velocity of the gas with constant pressure delivered by the gas storage device to the anti-resonance cavity of the hollow-core optical fiber to be detected being less than a preset velocity value, or the length of the hollow-core optical fiber to be detected being greater than a preset length threshold, the gas with constant pressure is delivered to the anti-resonance cavity of the hollow-core optical fiber to be detected.

9. The detection system according to claim 1, characterized in that: The gas detection device includes a plurality of detection probes; wherein the number of the plurality of detection probes is greater than or equal to the number of anti-resonance cavities in the hollow-core optical fiber to be detected, and the detection probes are used to detect the gas output through the anti-resonance cavity of the hollow-core optical fiber to be detected.

10. The detection system according to any one of claims 1 to 9, characterized in that: The gas detection device also includes a communication module, which is used to send the detection result to a detection terminal.

11. A method for detecting hollow core optical fibers, characterized in that include: Delivering a gas with a constant pressure into the anti-resonance cavity of the hollow-core optical fiber to be detected; The gas output from the anti-resonance cavity of the hollow-core optical fiber to be detected is detected to obtain a detection result.

12. A detection device for hollow core optical fiber, characterized in that: include: A delivery module, configured to deliver gas with a constant pressure into the anti-resonance cavity of the hollow-core optical fiber to be detected; The detection module is configured to detect the gas output from the anti-resonance cavity of the hollow-core optical fiber to be detected to obtain a detection result.

13. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and when the instructions are executed by the at least one processor, the detection method for hollow-core optical fiber according to claim 11 is implemented.

14. A non-transitory computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are used to enable the computer to execute the detection method for hollow core optical fiber according to claim 11.

15. A computer program product, characterized in that The invention comprises a computer program, wherein when the computer program is executed by a processor, the detection method for a hollow core optical fiber according to claim 11 is implemented.

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