An apparatus, system and method for testing optical power loss.

Abstract

This invention discloses a testing device, system, and method for optical power loss, suitable for testing the optical power loss of multiple fiber optic patch cords. A fiber optic patch cord clamp is mounted on the slide of a lead screw slide, and the clamp has multiple equally spaced openings along a direction parallel to the slide's movement. Each opening is equipped with a fiber optic patch cord connector. The probe of a power meter is located on the base of the lead screw slide, and each fiber optic patch cord under test is fixed to the clamp via its connector. A controller moves the lead screw slide, causing each patch cord under test to move, so that the laser output from each patch cord sequentially illuminates the receiving surface of the power meter probe. The optical power loss of the patch cord under test is determined based on the power meter's measurement and the incident optical power. This method allows for the automatic testing of the power loss of multiple fiber optic patch cords over a long period using a single power meter, saving labor costs.

Description

Technical Field

[0001] This invention relates to the field of optical fiber loss testing technology, and in particular to a testing device, system and method for optical power loss. Background Technology

[0002] As a signal transmission medium, fiber optic patch cords will experience optical power loss after prolonged laser transmission. The magnitude of this optical loss determines the transmission distance, therefore, it is necessary to test the optical transmission performance of fiber optic patch cords.

[0003] Because there are many test parameters for optical modules, different test instruments and corresponding test platforms are required for different parameters. The resulting frequent fiber optic connections and equipment replacements will inevitably lead to a large amount of manpower costs. Moreover, with the mass production of products and the increase in the workload of testing, most fiber optic patch cord manufacturers currently lack efficient measurement devices and methods for testing the power loss of fiber optic patch cords to determine whether the optical transmission performance of the patch cords meets the requirements. Summary of the Invention

[0004] This invention provides an optical power loss testing device, system, and method, which can automatically test the power loss of multiple fiber optic patch cords over a long period of time using a single power meter, saving labor costs.

[0005] In a first aspect, embodiments of the present invention provide an optical power loss testing device suitable for testing the optical power loss of multiple fiber optic patch cords, characterized in that it includes: a controller, a lead screw slide, and a power meter;

[0006] The slide of the lead screw slide is provided with an optical fiber patch cord clamp, and the optical fiber patch cord clamp is provided with a plurality of equally spaced openings along the moving direction of the slide; each of the openings is provided with an optical fiber patch cord connector.

[0007] The power meter probe is located on the base of the lead screw slide, and each fiber optic patch cord to be tested is fixed on the fiber optic patch cord clamp through the fiber optic patch cord connector; the controller controls the slide of the lead screw slide to move, thereby moving each fiber optic patch cord to be tested, so that the laser output from each fiber optic patch cord to be tested sequentially illuminates the light receiving surface of the power meter probe.

[0008] The optical power loss of the fiber optic patch cord under test is determined based on the measured value of the power meter and the incident optical power.

[0009] Optionally, the height difference between the opening and the plane containing the light-receiving surface of the power meter probe is greater than or equal to 1 mm and less than or equal to 4 mm.

[0010] Optionally, the distance between each of the openings is greater than or equal to 2.5 cm and less than or equal to 3 cm.

[0011] Optionally, the distance between the two openings of the fiber optic patch cord clamp near the edge along the direction of movement of the slide table and the adjacent edge of the fiber optic patch cord clamp is greater than the diameter of the light-receiving surface of the power meter probe.

[0012] Secondly, embodiments of the present invention also provide an optical power loss testing system, comprising: the optical power loss testing device described in the first aspect, a first preset number of optical modules, a second preset number of multiplexers, a second preset number of first optical fiber patch cords, and a second preset number of optical fiber patch cords to be tested; wherein the second preset number is at least twice the first preset number;

[0013] Each of the optical modules includes two sets of output channels, and the wavelengths of the lasers transmitted by each output channel in each set of output channels are different; each set of output channels is connected to the input terminal of one of the multiplexers, and the multiplexer is used to combine the lasers transmitted by each set of output channels into one channel;

[0014] The output of each multiplexer is connected to the input interface of each first fiber optic patch cord, the output interface of each first fiber optic patch cord is connected to the input interface of each fiber optic patch cord under test, and the output interface of each fiber optic patch cord under test is connected to each fiber optic patch cord connector provided on the fiber optic patch cord clamp; wherein, the number of openings provided on the fiber optic patch cord clamp is greater than or equal to the second preset number.

[0015] Optionally, the output port of the first fiber optic patch cord and the input port of the fiber optic patch cord under test are connected via an adapter.

[0016] Thirdly, embodiments of the present invention also provide a method for testing optical power loss, implemented using the power loss testing device described in the first aspect, wherein the method for testing optical power loss includes:

[0017] The slide is controlled to move so that the laser output from each fiber optic jumper under test sequentially illuminates the light-receiving surface of the power meter probe.

[0018] Obtain the measured value of the power meter;

[0019] The optical power loss of the fiber optic patch cord under test is determined based on the measured value of the power meter and the incident optical power.

[0020] Optionally, before controlling the slide to move so that the laser output from each fiber optic patch cord under test sequentially illuminates the light-receiving surface of the power meter probe, and simultaneously continuously acquiring the optical power measured by the power meter, the method further includes:

[0021] All optical modules are turned on, and the power of the laser emitted by each optical module is adjusted so that the output power of each multiplexer reaches the first preset power.

[0022] All optical modules are turned off.

[0023] After connecting the output end of each multiplexer to the input interface of each first fiber optic patch cord, turn on each set of output channels corresponding to each multiplexer in turn, test and record the output power of each first fiber optic patch cord as the incident light power.

[0024] All optical modules are turned off.

[0025] After the output interface of the first fiber optic patch cord is connected to the input interface of each fiber optic patch cord under test, and the output interface of each fiber optic patch cord under test is connected to the fiber optic patch cord connectors provided on the fiber optic patch cord fixture, each optical module is controlled to be turned on.

[0026] Optionally, after obtaining the measured value of the power meter, the method further includes:

[0027] Based on the incident light power and the measured light power of each fiber optic patch cord under test, the coupling loss between the output interface of each first fiber optic patch cord and the corresponding input interface of each fiber optic patch cord under test is determined.

[0028] Optionally, determining the optical power loss of the fiber optic patch cord based on the measured value of the power meter and the incident optical power includes: determining the first optical power and the second optical power of the fiber optic patch cord under test within a preset time period based on the optical power values ​​at preset time intervals within a preset time period; determining the first loss based on the first optical power and the incident optical power; determining the second loss based on the second optical power and the incident optical power; and determining the loss change of the fiber optic patch cord under test based on the first loss and the second loss.

[0029] This invention provides a testing device, system, and method for optical power loss, suitable for testing the power loss of multiple fiber optic patch cords. A fiber optic patch cord clamp is provided on the slide of a lead screw slide, and the clamp has multiple equally spaced openings along a direction parallel to the slide's movement. Each opening is equipped with a fiber optic patch cord connector. The probe of a power meter is located on the base of the lead screw slide, and each fiber optic patch cord under test is fixed to the clamp via the connector. A controller moves the lead screw slide, causing each fiber optic patch cord under test to move, so that the laser output from each patch cord sequentially illuminates the receiving surface of the power meter probe. The optical power loss of the fiber optic patch cord is determined based on the power meter's measurement and the incident light power. The fiber optic patch cord clamp of the optical power loss testing device provided in this embodiment of the invention can move each fiber optic patch cord under test, so that the laser output from each fiber optic patch cord under test sequentially illuminates the light receiving surface of the probe of the power meter. Thus, the optical power loss of the fiber optic patch cord under test can be determined based on the measured value of the power meter and the incident light power. This allows for the automatic testing of the power loss of multiple fiber optic patch cords over a long period of time using a single power meter, saving labor costs.

[0030] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of an optical power loss testing device provided in an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the structure of an optical power loss testing system provided in an embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of another optical power loss testing system provided in an embodiment of the present invention;

[0035] Figure 4 This is a flowchart of a method for testing optical power loss provided in an embodiment of the present invention;

[0036] Figure 5 This is a flowchart of another optical power loss testing method provided in an embodiment of the present invention. Detailed Implementation

[0037] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0038] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0039] Figure 1 This is a schematic diagram of an optical power loss testing device provided in an embodiment of the present invention. The optical power loss testing device 100 is suitable for testing the optical power loss of multiple fiber optic patch cords. (Refer to...) Figure 1 The optical power loss testing device 100 includes: a controller (not shown in the figures), a lead screw slide 110, and a power meter 120; the lead screw slide 110 has an optical fiber patch cord clamp 111 on its slide, and the optical fiber patch cord clamp 111 has a plurality of equally spaced openings 1111 along a direction parallel to the movement direction of the slide; each opening 1111 has an optical fiber patch cord connector 1112; the probe of the power meter 120 is located on the base of the lead screw slide 110, and each optical fiber patch cord to be tested is fixed to the optical fiber patch cord clamp 111 through the optical fiber patch cord connector 1112; the controller controls the slide of the lead screw slide 110 to move, thereby moving each optical fiber patch cord to be tested, so that the laser output from each optical fiber patch cord to be tested sequentially illuminates the light receiving surface of the probe of the power meter 120; the optical power loss of the optical fiber patch cord to be tested is determined based on the measured value of the power meter 120 and the incident light power.

[0040] It should be noted that, Figure 1The diagram shows the fiber optic patch cord clamp 111 with eight openings 1111. The number of openings 1111 on the clamp 111 can be adjusted according to actual usage requirements. Both the power meter 120 and the lead screw slide 110 are connected to a controller. The controller can control the movement of the lead screw slide 110, thereby automatically adjusting the position of the fiber optic patch cord connector 1112 at regular intervals. This allows for the automatic testing of the optical power output of multiple fiber optic patch cords under test using a single power meter over a long period. This enables the determination of the optical power loss of the fiber optic patch cord under test based on the measurement value of the power meter 120 and the incident optical power.

[0041] Specifically, the incident optical power is the optical power of the laser input to the fiber optic patch cord under test, which can be measured in advance. The formula for optical power loss is: Where L represents optical power loss. By substituting the optical power of the laser output from the fiber optic patch cord under test and the incident optical power into the formula for optical power loss, the loss change of the fiber optic patch cord under test under long-term laser access can be obtained.

[0042] The optical power loss testing device 100 provided in this embodiment of the invention has an optical fiber patch cord clamp 111 that can move each optical fiber patch cord under test, so that the laser output from each optical fiber patch cord under test sequentially illuminates the light receiving surface of the probe of the power meter 120. Thus, the optical power loss of the optical fiber patch cord under test can be determined based on the measured value of the power meter 120 and the incident light power. This allows for the automatic testing of the power loss of multiple optical fiber patch cords over a long period of time using a single power meter, saving labor costs.

[0043] Optionally, based on the above embodiments, the height difference between the plane containing the aperture 1111 and the light-receiving surface of the probe of the power meter 120 is greater than or equal to 1 mm and less than or equal to 4 mm.

[0044] Understandably, the design of the opening 1111 on the fiber optic patch cord clamp 111 needs to take into account the distance from the output interface end face of the fiber optic patch cord under test to the power meter 120. If it is too far, it may lead to inaccurate measurement; if it is too close, it may lead to overheating or burnt end face.

[0045] In this embodiment of the invention, the height difference between the plane containing the opening 1111 and the light-receiving surface of the probe of the power meter 120 is greater than or equal to 1 mm and less than or equal to 4 mm. This allows for accurate measurement of the optical power of the laser output by the fiber optic patch cord under test, while also preventing damage to the output interface of the fiber optic patch cord under test.

[0046] Optionally, based on the above embodiments, the distance between each opening 1111 is greater than or equal to 2.5cm and less than or equal to 3cm.

[0047] Understandably, the design of the opening 1111 on the fiber optic patch cord fixture 111 needs to take into account the distance between the output interfaces of each fiber optic patch cord under test. If the distance between the output interfaces of each fiber optic patch cord under test is too close, the power meter 120 will receive light from other channels when measuring the laser of a certain channel. If it is too far apart, the measurement efficiency will be slowed down.

[0048] In this embodiment of the invention, the distance between each opening 1111 is set to be greater than or equal to 2.5cm and less than or equal to 3cm, which can improve the measurement accuracy while ensuring the efficiency of laser power measurement.

[0049] Optionally, based on the above embodiments, the distance between the two openings 1111 near the edge of the fiber optic patch cord clamp 111 along the sliding direction parallel to the movement direction of the slide table, and the distance between the two openings 1111 and the edge of the adjacent fiber optic patch cord clamp 111, is greater than the diameter of the light receiving surface of the probe of the power meter 120.

[0050] Understandably, the fiber optic patch cord clamp 111 is designed to block the optical power meter 120 when measuring the fiber optic patch cord connected near the edge, otherwise the ambient light will affect the measurement results.

[0051] In this embodiment of the invention, the distance between the two openings 1111 near the edge of the fiber optic patch cord clamp 111 along the sliding direction parallel to the movement direction of the slide table, and the distance between the edges of the fiber optic patch cord clamp 111 and the adjacent fiber optic patch cord clamp 111, is greater than the diameter of the light receiving surface of the probe of the power meter 120. This can avoid the influence of ambient light on the measurement results and improve the measurement accuracy.

[0052] In summary, the fiber optic patch cord clamp 111 of the optical power loss testing device 100 provided in this embodiment of the invention can move each fiber optic patch cord under test, so that the laser output from each fiber optic patch cord under test sequentially illuminates the light-receiving surface of the probe of the power meter 120. Thus, the optical power loss of the fiber optic patch cord under test is determined based on the measured value of the power meter 120 and the incident light power. This allows for the automatic testing of the power loss of multiple fiber optic patch cords over a long period using a single power meter, saving labor costs. Furthermore, setting the height difference between the opening 1111 and the plane containing the light-receiving surface of the probe of the power meter 120 to be greater than or equal to 1 mm and less than or equal to 4 mm allows for accurate measurement of the optical power of the laser output from the fiber optic patch cord under test while avoiding damage to the output interface of the fiber optic patch cord under test. Setting the distance between each opening 1111 to be greater than or equal to 2.5 cm and less than or equal to 3 cm improves measurement accuracy while ensuring laser power measurement efficiency. The distance between the two openings 1111 near the edge of the fiber optic patch cord clamp 111 along the sliding direction parallel to the movement direction of the slide table, and the distance between the edges of the fiber optic patch cord clamp 111 and the adjacent fiber optic patch cord clamp 111, is greater than the diameter of the light receiving surface of the probe of the power meter 120. This can avoid the influence of ambient light on the measurement results and improve the measurement accuracy.

[0053] Figure 2 This is a schematic diagram of the structure of an optical power loss testing system provided in an embodiment of the present invention. Figure 3 This is a schematic diagram of another optical power loss testing system provided in an embodiment of the present invention. Figure 2 and Figure 3 The difference lies in the viewing angle. (Reference) Figure 2 and Figure 3 The system includes: an optical power loss testing device 100, a first preset number of optical modules 200, a second preset number of multiplexers 300, a second preset number of first fiber optic patch cords 400, and a second preset number of fiber optic patch cords under test 500; wherein the second preset number is at least twice the first preset number; each optical module 200 includes two sets of output channels, and the wavelength of the laser transmitted in each output channel of each set of output channels is different; each set of output channels is connected to the input end of a multiplexer 300, and the multiplexer... 300 is used to combine the lasers transmitted from each group of output channels into one channel; the output end of each multiplexer 300 is connected to the input interface of each first fiber optic patch cord 400, the output interface of each first fiber optic patch cord 400 is connected to the input interface of each fiber optic patch cord 500 under test, and the output interface of each fiber optic patch cord 500 under test is connected to each fiber optic patch cord connector 1112 provided on the fiber optic patch cord clamp 111; wherein, the number of openings 1111 provided on the fiber optic patch cord clamp 111 is greater than or equal to the second preset number.

[0054] The first fiber optic patch cord 400 can have an MPO interface for both its input and output. Similarly, the fiber optic patch cord 500 under test can have an MPO interface for its input and an FC interface for its output. The input and output interfaces of both the first fiber optic patch cord 400 and the fiber optic patch cord 500 under test can be of other types. The selection of the fiber optic patch cord connector 1112 should take into account the type of output interface of the fiber optic patch cord 500 under test.

[0055] It should be noted that, Figure 2 and Figure 3 The system includes 4 optical modules 200, 8 multiplexers 300, 8 first fiber optic patch cords 400 and 8 fiber optic patch cords under test 500. Each optical module 200 includes 8 output channels. Every 4 output channels of each optical module 200 are connected to one multiplexer 300. The first preset number and the second preset number can also be selected according to actual usage requirements.

[0056] For example, when each optical module 200 includes 8 output channels, the wavelengths of the laser in the 1st to 4th output channels can be 1270nm, 1310nm, 1290nm, and 1330nm, respectively, and the wavelengths of the laser in the 5th to 8th output channels can be 1270nm, 1310nm, 1290nm, and 1330nm, respectively. The power of the laser in each channel is approximately 100mW. After every group of 4 output channels of each optical module 200 is connected to a multiplexer 300, the light emitted by the multiplexer 300 is high-power, greater than or equal to 300mW (generally greater than 380mW). The power of the laser emitted by each optical module 200 can be changed according to the type of optical fiber used, the actual situation of the module, and experimental conditions.

[0057] Understandably, when the multi-channel high-power optical module 200 is used as a light source, the light emitted from the light source enters the first fiber optic patch cord 400 and then enters the fiber optic patch cord 500 under test. Since the output interfaces of each fiber optic patch cord 500 under test are respectively connected to the fiber optic patch cord connectors 1112 set on the fiber optic patch cord clamp 111, the controller controls the movement of the slide of the lead screw slide 110, so that the fiber optic patch cord connectors 1112 automatically adjust their positions at regular intervals. This achieves the effect of automatically testing the optical power of the laser output by multiple fiber optic patch cords under test for a long time using a single power meter. Thus, the optical power loss of the fiber optic patch cord under test can be determined based on the measured value of the power meter 120 and the incident light power.

[0058] Optionally, based on the above embodiments, the output port of the first fiber optic patch cord 400 and the input port of the fiber optic patch cord 500 under test are connected by an adapter.

[0059] It is understandable that an adapter is required when connecting the output port of the first fiber optic patch cord 400 and the input port of the fiber optic patch cord 500 under test. Failure to use an adapter may result in the burning of the connection end face.

[0060] The optical power loss testing system provided in this embodiment of the invention includes the optical power loss testing device 100 provided in the above embodiment, and therefore has the same beneficial effects. For contents not described in detail in this embodiment of the invention, please refer to the optical power loss testing device 100 provided in the above embodiment.

[0061] Figure 4 This is a flowchart of a method for testing optical power loss according to an embodiment of the present invention, implemented using the power loss testing device provided in the above embodiment. (Refer to...) Figure 4 The test method for optical power loss includes:

[0062] S410: Control the slide to move so that the laser output from each fiber optic patch cord under test is sequentially irradiated onto the light-receiving surface of the power meter probe.

[0063] Understandably, the controller can control the movement of the slide, thereby causing the fiber optic patch cord connector to automatically adjust its position at regular intervals, which in turn causes each fiber optic patch cord under test to automatically adjust its position at regular intervals. This enables the use of a single power meter to automatically test the optical power of the laser output from multiple fiber optic patch cords under test over a long period of time.

[0064] S420: Obtain the measured value from the power meter.

[0065] It should be noted that the power meter can measure power and can automatically save the measurement data at intervals by setting a program.

[0066] S430. Determine the optical power loss of the fiber optic patch cord under test based on the measured value of the power meter and the incident optical power.

[0067] It should be noted that the software will automatically stop after the set time. At this time, the measured data of the power meter will be processed to obtain the optical power loss value of any channel before and after any time period.

[0068] In this embodiment of the invention, by controlling the movement of the slide, the laser output from each fiber optic patch cord under test is sequentially irradiated onto the light-receiving surface of the power meter probe. This enables the fiber optic patch cord connectors to automatically adjust their positions at regular intervals, thereby causing each fiber optic patch cord under test to automatically adjust its position at regular intervals. This achieves the effect of using a single power meter to automatically test the optical power of the laser output from multiple fiber optic patch cords under test for an extended period of time. As a result, the optical power loss of the fiber optic patch cord under test can be determined based on the power meter's measured value and the incident optical power.

[0069] Figure 5 This is a flowchart of another optical power loss testing method provided in an embodiment of the present invention, see reference. Figure 5 The test method for optical power loss includes:

[0070] S510: Control all optical modules to turn on, and adjust the power of the laser emitted by each optical module so that the output power of each multiplexer reaches the first preset power.

[0071] The first preset power can be 400mW, or it can be adjusted according to actual needs.

[0072] S520, control all optical modules to shut down.

[0073] S530. After connecting the output end of each multiplexer to the input interface of each first fiber optic patch cord, turn on each set of output optical channels connected to each multiplexer in turn, test and record the output optical power of each first fiber optic patch cord as the incident optical power.

[0074] S540, control all optical modules to shut down.

[0075] S550: After the output interface of the first fiber optic patch cord is connected to the input interface of each fiber optic patch cord under test, and the output interface of each fiber optic patch cord under test is connected to the fiber optic patch cord connectors set on the fiber optic patch cord fixture, control each optical module to be turned on.

[0076] Optionally, the above embodiment may include steps S510 to S550 before step S410. S560: Control the slide to move so that the laser output from each fiber optic patch cord under test sequentially illuminates the light receiving surface of the power meter probe.

[0077] S570, Obtain the measured value from the power meter.

[0078] S581. Determine the optical power loss of the fiber optic patch cord under test based on the measured value of the power meter and the incident optical power.

[0079] Understandably, by obtaining the power meter's measurement values ​​within a preset time period, the optical power loss of the fiber optic patch cord under test during that period can be determined based on the power meter's measurement values ​​and the incident optical power.

[0080] Optionally, based on the above embodiments, after step S570, the method further includes:

[0081] S582. Based on the incident light power and the measured light power of each fiber optic patch cord under test, determine the coupling loss between the output interface of each first fiber optic patch cord and the corresponding input interface of each fiber optic patch cord under test.

[0082] Understandably, by testing and recording the output power of each first fiber optic patch cord's output interface as the incident power, and then measuring the measured optical power of each fiber optic patch cord under test, the coupling loss between the output interface of each first fiber optic patch cord and the corresponding input interface of each fiber optic patch cord under test can be determined.

[0083] Optionally, based on the above embodiments, step S581 includes: determining the first optical power and the second optical power of the fiber optic patch cord under test within the preset time period according to the value of the optical power of the preset time interval within the preset time period; determining the first loss according to the first optical power and the incident optical power; determining the second loss according to the second optical power and the incident optical power; and determining the loss change of the fiber optic patch cord under test according to the first loss and the second loss.

[0084] The preset time interval is the time interval at which the laser power output of the specified fiber optic patch cord under test can be measured.

[0085] Understandably, after testing and recording the output power of each first fiber optic patch cord's output interface as the incident power, the power meter's measurement value within a preset time period is obtained, and the loss change of the fiber optic patch cord under test within the preset time period can be determined based on the power meter's measurement value and the incident power.

[0086] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0087] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A system for testing optical power loss, characterized by The application relates to a light power loss testing system and a light power loss testing method. The light power loss testing system comprises a light power loss testing device, a first preset number of optical modules, a second preset number of multiplexers, a second preset number of first optical fiber jumpers and a second preset number of to-be-tested optical fiber jumpers. The second preset number is at least twice the first preset number. The light power loss testing device is suitable for testing the light power loss of a plurality of optical fiber jumpers and comprises a controller, a lead screw sliding table and a power meter. The optical fiber jumper clamp is provided with a plurality of equidistantly arranged apertures along the moving direction of the sliding table. Each aperture is provided with an optical fiber jumper connector. The probe of the power meter is located on the base of the lead screw sliding table. The controller controls the movement of the sliding table of the lead screw sliding table to drive each to-be-tested optical fiber jumper to move, so that the laser output by each to-be-tested optical fiber jumper is sequentially irradiated on the light receiving surface of the probe of the power meter. The light power loss of the to-be-tested optical fiber jumper is determined according to the measurement value of the power meter and the incident light power.

2. The test system of optical power loss according to claim 1, characterized in that, Each optical module comprises two groups of light output channels.

3. The test system of optical power loss according to claim 1, wherein, Each light output channel in each group of light output channels transmits laser with different wavelengths.

4. The test system of optical power loss according to claim 1, characterized in that, Each group of light output channels is connected with the input end of one multiplexer.

5. The test system of optical power loss according to claim 1, wherein, The multiplexer is used for combining the laser transmitted by each group of light output channels into one path.

6. A method of testing optical power loss, characterized by, The output end of each multiplexer is connected with the input interface of each first optical fiber jumper. The output interface of each first optical fiber jumper is connected with the input interface of each to-be-tested optical fiber jumper. The output interface of each to-be-tested optical fiber jumper is connected with each optical fiber jumper connector arranged on the optical fiber jumper clamp. The height difference between the aperture and the light receiving surface of the probe of the power meter is greater than or equal to 1 mm and less than or equal to 4 mm. The distance between each aperture is greater than or equal to 2.5 cm and less than or equal to 3 cm. The distance between the two apertures close to the edge of the optical fiber jumper clamp and the edge of the optical fiber jumper clamp adjacent to the two apertures is greater than the diameter of the light receiving surface of the probe of the power meter. The light power loss testing system of claim 1 is used to implement the light power loss testing method. The controller controls the movement of the sliding table so that the laser output by each to-be-tested optical fiber jumper is sequentially irradiated on the light receiving surface of the probe of the power meter. The measurement value of the power meter is obtained. The light power loss of the to-be-tested optical fiber jumper is determined according to the measurement value of the power meter and the incident light power. Before the controller controls the movement of the sliding table so that the laser output by each to-be-tested optical fiber jumper is sequentially irradiated on the light receiving surface of the probe of the power meter, the power meter continuously obtains the measured light power. controlling each of the optical modules to be opened, and adjusting the power of the laser light emitted by each of the optical modules, so that the output power of each multiplexer reaches a first preset power; controlling each of the optical modules to be closed; after the output ends of each of the multiplexers are connected to the input interfaces of each first optical fiber jumper, each group of light output channels corresponding to each of the multiplexers is opened in turn, the output power of the output interfaces of each of the first optical fiber jumpers is tested and recorded as the incident light power; controlling each of the optical modules to be closed; after the output interfaces of the first optical fiber jumpers are connected to the input interfaces of each of the to-be-tested optical fiber jumpers, and the output interfaces of each of the to-be-tested optical fiber jumpers are connected to the optical fiber jumper connectors arranged on the optical fiber jumper clamp, controlling each of the optical modules to be opened.

7. The method of testing for optical power loss according to claim 6, wherein, After the measurement value of the power meter is obtained, the method further includes: According to the incident light power and the measured light power of each to-be-tested optical fiber jumper, the coupling loss of the output interface of each first optical fiber jumper and the input interface of each corresponding to-be-tested optical fiber jumper is determined.

8. The method of testing for optical power loss according to claim 6, wherein, According to the measurement value of the power meter and the incident light power, the optical power loss of the optical fiber jumper is determined, including: according to the values of the optical power at preset time intervals within a preset time period, determining the first optical power and the second optical power of the to-be-tested optical fiber jumper within the preset time period; according to the first optical power and the incident light power, determining a first loss, according to the second optical power and the incident light power, determining a second loss, and according to the first loss and the second loss, determining the loss change of the to-be-tested optical fiber jumper.

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