Portable light splitting and polarizing module for optical fiber ring test

Abstract

The utility model belongs to the technical field of optical fibers, and particularly relates to a portable light splitting polarization module for optical fiber ring testing, which comprises a light splitting layer and a polarization layer, the polarization layer is detachably mounted on the upper surface of the light splitting layer, the upper surface of the light splitting layer is provided with a first tail fiber coiling groove, and the bottom of the first tail fiber coiling groove is provided with a first device groove. A plurality of light splitting devices are placed in the first device groove, and an input fiber inlet is formed in the peripheral side of the first tail fiber winding groove; a second tail fiber coiling groove is formed in the upper surface of the polarizing layer, a second device groove is formed in the bottom of the second tail fiber coiling groove, a plurality of polarizing devices are placed in the second device groove, an output fiber outlet is formed in the peripheral side of the second tail fiber coiling groove, a fiber climbing channel is formed in the bottom of the second tail fiber coiling groove, and the first tail fiber coiling groove and the second tail fiber coiling groove are communicated through the fiber climbing channel. The device has the advantages of being convenient to carry and easy to operate.

Description

Technical Field

[0001] The utility model relates to the field of optical fiber technology, in particular to a portable light splitting and polarizing module for optical fiber ring testing. Background Art

[0002] A fiber optic gyroscope (FOG) is an angular motion detection device that uses the Sagnac effect to detect the angular velocity of a loop plane and subsequently calculate the object's motion. The fiber optic ring is the core sensitive component of the FOG. After production, the fiber optic ring typically undergoes multiple tests, such as insertion loss, polarization extinction ratio, and bias testing. These tests are sometimes performed in different temperature environments to ensure that the fiber optic ring used in FOG assembly meets the specified technical specifications.

[0003] When performing insertion loss, polarization extinction ratio, and other tests on a fiber optic ring at multiple temperature points, the existing testing method is to place the fiber optic ring inside a temperature chamber, lead out the pigtail of the fiber optic ring, and fuse and test it with an external optical path consisting of a light source, splitter, polarizer, and other devices.

[0004] To ensure accurate insertion loss testing at each temperature point, the loss associated with each product's splicing must be constant. Therefore, the number of fiber rings that can be tested at once is determined by the number of splits in the optical path. Furthermore, the polarization extinction ratio test requires a certain degree of linear polarization of the light source, so it's also necessary to ensure that each split in the optical path possesses a certain degree of linear polarization.

[0005] The above technical solution has the disadvantages of being complicated in pre-test operations, being inconvenient to carry and being unable to adapt to different usage scenarios. Utility Model Content

[0006] In order to remedy the deficiencies of the existing technology, the present application proposes a portable optical splitting and polarization module for optical fiber ring testing.

[0007] The utility model solves the technical problem by adopting the following technical solutions:

[0008] A portable optical splitting and polarizing module for optical fiber ring testing, comprising a splitting layer and a polarizing layer; the polarizing layer is detachably mounted on the upper surface of the splitting layer; a first pigtail winding groove is provided on the upper surface of the splitting layer; a first device groove is provided at the bottom of the first pigtail winding groove; a plurality of splitting devices are placed in the first device groove; an input fiber entrance is provided on the circumference of the first pigtail winding groove; a second pigtail winding groove is provided on the upper surface of the polarizing layer; a second device groove is provided at the bottom of the second pigtail winding groove; a plurality of polarizing devices are placed in the second device groove; an output fiber outlet is provided on the circumference of the second pigtail winding groove; a fiber climbing channel is provided at the bottom of the second pigtail winding groove; the fiber climbing channel connects the first pigtail winding groove and the second pigtail winding groove.

[0009] As an optimization of a portable light splitting and polarizing module for optical fiber ring testing, a protective cover is detachably mounted on the upper surface of the polarizing layer.

[0010] As an optimization of a portable spectroscopic polarization module for optical fiber ring testing, a first ring groove is provided on the upper surface of the protective cover; a second ring groove is provided on the lower surface of the spectroscopic layer; and the first ring groove and the second ring groove are matched with each other.

[0011] As an optimization of a portable optical splitting and polarizing module for optical fiber ring testing, a storage groove is opened on the outer peripheral side of the optical splitting layer for winding and storing optical fiber jumpers.

[0012] As an optimization of a portable optical splitting and polarizing module for optical fiber ring testing, a fiber climbing bump is provided on the inner circumference of the first pigtail winding groove.

[0013] As an optimization of a portable spectroscopic polarization module for optical fiber ring testing, a receiving ring groove is provided on the outer peripheral side of the polarization layer; the polarization layer is provided with an output fiber receiving channel; the output fiber receiving channel is matched with the output fiber outlet; the output fiber receiving channel connects the output fiber outlet and the receiving ring groove.

[0014] As an optimization of a portable optical splitting and polarizing module for optical fiber ring testing, the bottom of the output fiber receiving channel adopts an upwardly convex arc surface setting.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The optical fiber pigtail enters the first pigtail winding groove through the input fiber entrance and the optical fiber pigtail is fused to the optical splitter. The setting of the first device groove is convenient for the staff to reasonably store the optical splitter and reduce the wear of the optical splitter. The output fiber of the optical splitter enters the second pigtail winding groove through the climbing fiber channel after being wound in the first pigtail winding groove, and the output fiber of the optical splitter is fused to the polarizing device. The setting of the second device groove is convenient for the staff to reasonably store the polarizing device and reduce the wear of the polarizing device. Then, the output fiber of the polarizing device is wound in the second pigtail winding groove and output through the output fiber outlet; the polarizing layer can be detachably installed on the upper surface of the optical splitter layer, which is convenient for the staff to quickly organize the optical fiber pigtail and convenient for the staff to carry it to different scenes for use, saving time and effort. At the same time, the polarizing layer can effectively protect the optical splitter of the optical splitter layer, thereby improving the protection of the portable optical splitting polarizing module;

[0017] 2. A protective cover is detachably mounted on the upper surface of the polarizing layer. Therefore, the protective cover can effectively protect the polarizing device of the polarizing layer, reduce damage to the polarizing device, extend the practical life of the polarizing device, and improve the protection of the portable spectroscopic polarizing module;

[0018] 3. The first ring groove and the second ring groove are matched with each other. Through the coordinated use of the first ring groove and the second ring groove, the staff can hold the first ring groove and the second ring groove in a portable manner, thereby reducing the possibility of slipping or even damage of the portable spectroscopic polarizing module, and effectively enhancing the protection of the portable spectroscopic polarizing module. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present application;

[0021] Figure 2 Schematic diagram of the overall structure of the embodiment of the present application from different angles;

[0022] Figure 3 This is a schematic structural diagram of the light-splitting layer in an embodiment of the present application;

[0023] Figure 4 Schematic diagram of the structure of the polarizing layer in the embodiment of the present application.

[0024] In the figure: 1. Splitting layer; 11. First pigtail winding groove; 12. First device groove; 13. Splitting device; 14. Input fiber entrance; 15. Second annular groove; 16. Climbing fiber protrusion; 17. Storage groove; 2. Polarizing layer; 21. Second pigtail winding groove; 22. Second device groove; 23. Polarizing device; 24. Output fiber exit; 25. Climbing fiber channel; 26. Storage annular groove; 27. Output fiber storage channel; 3. Protective cover; 31. First annular groove. DETAILED DESCRIPTION

[0025] In order to make the technical solutions and advantages of the present invention clearer, the present invention and its beneficial effects will be described in further detail below in conjunction with specific implementation methods and the accompanying drawings, but the implementation methods of the present invention are not limited thereto.

[0026] In the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0027] The standard parts used in this utility model can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0028] The following is combined with Figure 1-4 , further details of this application are given.

[0029] This application provides a portable optical splitting and polarization module for optical fiber ring testing, which adopts the following technical solutions:

[0030] Reference Figure 1 and Figure 2 , a portable spectroscopic polarizing module for optical fiber ring testing includes a spectroscopic layer 1, a polarizing layer 2 and a protective cover 3; the polarizing layer 2 is detachably mounted on the upper surface of the spectroscopic layer 1, and the protective cover 3 is detachably mounted on the upper surface of the polarizing layer 2. In the embodiment of the present application, the outer diameter of the module is 200-220 mm and the height is 60-70 mm, and the outer diameter and height include but are not limited to these dimensions, and the polarizing layer 2 is firmly embedded in the upper surface of the spectroscopic layer 1 through screws and the threaded holes of the spectroscopic layer 1, and the protective cover 3 is firmly embedded in the upper surface of the polarizing layer 2 through screws and the threaded holes of the polarizing layer 2; at the same time, a first annular groove 31 is provided on the upper surface of the protective cover 3, and a second annular groove 15 is provided on the lower surface of the spectroscopic layer 1 to match the first annular groove 31. Through the coordinated use of the first annular groove 31 and the second annular groove 15, the staff can firmly hold the portable spectroscopic polarizing module, which is convenient for the staff to carry the portable spectroscopic polarizing module to different usage scenarios.

[0031] Reference Figure 3 and Figure 4The upper surface of the optical splitting layer 1 is provided with a first pigtail winding groove 11, and the bottom of the first pigtail winding groove 11 is provided with a first device groove 12. Several splitter devices 13 are placed in the first device groove 12. The setting of the first device groove 12 can accommodate the splitter devices 13 and provide effective protection. At the same time, the size of the first device groove 12 can be adjusted according to the number and height of the splitter devices 13 to keep the input and output pigtails of the splitter device 13 at the same height as the winding surface of the optical splitting layer 1; the inner circumference of the first pigtail winding groove 11 is provided with a climbing fiber protrusion 16, and the circumference of the first pigtail winding groove 11 is provided with an input fiber entrance 14, and then the upper surface of the polarizing layer 2 is provided with a second pigtail winding groove 21, and the second pigtail winding groove 21 is provided. A second device groove 22 is provided at the bottom of the winding groove 21, and a plurality of polarizing devices 23 are placed in the second device groove 22. The setting of the second device groove 22 can accommodate the polarizing devices 23 to provide effective protection. At the same time, the size setting of the second device groove 22 can be adjusted according to the number and height of the polarizing devices 23 to keep the input and output pigtails of the polarizing device 23 at the same height as the winding surface of the polarizing layer 2; a climbing fiber channel 25 is provided at the bottom of the second pigtail winding groove 21, and the climbing fiber channel 25 connects the first pigtail winding groove 11 and the second pigtail winding groove 21, and the entrance of the climbing fiber channel 25 matches the end point of the climbing fiber channel 25, and an output fiber outlet 24 is opened on the peripheral side of the second pigtail winding groove 21.

[0032] Reference Figure 4 A receiving annular groove 26 is provided on the outer peripheral side of the polarizing layer 2, and the polarizing layer 2 is provided with an output fiber receiving channel 27. The output fiber receiving channel 27 is matched with the output fiber outlet 24. The output fiber receiving channel 27 connects the output fiber outlet 24 and the receiving annular groove 26, and the bottom of the output fiber receiving channel 27 adopts an upwardly convex arc surface setting.

[0033] In the embodiment of the present application, there are three optical splitters 13 and three polarizing devices 23. The optical splitters 13 include but are not limited to being fixed to the first device slot 12 using adhesive tape, and the polarizing devices 23 include but are not limited to being fixed to the second device slot 22 using adhesive tape. Both fixing methods can be adjusted according to the appearance of the device; wherein, one optical splitter 13 is used as the main optical splitter, the input end of which is directly connected to the light source, and the output end is fused with the input ends of the other two auxiliary optical splitters. After the fusion is completed, part of the pigtail is coiled in the first pigtail winding slot 11, and the remaining output pigtails of the two auxiliary optical splitters are fused. The fiber is input into the climbing fiber channel 25 of the polarizing layer 2 through the climbing fiber protrusion 16, and then the input fiber of the polarizing device 23 is fused with the output fiber of the splitter device 13. Then, this part of the pigtail can be coiled in the second pigtail winding groove 21, and the output fiber of the polarizing device 23 can be partially coiled in the second pigtail winding groove 21, and the remaining part passes through the output fiber outlet 24 into the output fiber storage channel 27, so that part of the output fiber of the polarizing device 23 can be coiled in the storage ring groove 26, which is convenient for the staff to carry. At the same time, the storage ring groove 26 can provide effective protection for the pigtail during transportation.

[0034] Reference Figure 3 A storage groove 17 is provided on the outer side of the splitting layer 1. The input fiber of the splitting device 13 can be made into a fiber optic jumper to facilitate access to the light source. After the fiber optic jumper is led out from the input fiber inlet 14, it can be coiled and stored in the storage groove 17 on the side wall, which is convenient for the staff to quickly organize the fiber optic jumpers and effectively reduces the possibility of wear of the fiber optic jumpers during transportation.

[0035] The implementation principle of a portable splitter and polarizer module for optical fiber ring testing in an embodiment of the present application is as follows: the optical fiber pigtail enters the first pigtail winding groove 11 through the input fiber inlet 14 and the optical fiber pigtail is fused to the splitter device 13, the output fiber of the splitter device 13 enters the second pigtail winding groove 21 through the climbing fiber protrusion 16 and the climbing fiber channel 25 after being wound in the first pigtail winding groove 11, and the output fiber of the splitter is fused to the polarizer device 23, and then the output fiber of the polarizer device 23 is output through the output fiber outlet 24 after being wound in the second pigtail winding groove 21.

[0036] Based on the disclosure and teachings of the above description, those skilled in the art will be able to make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments described above. Any obvious improvements, substitutions, or modifications made by those skilled in the art based on the present invention fall within the scope of protection of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience only and do not constitute any limitation on the present invention.

Claims

1. A portable optical splitter and polarization module for optical fiber ring testing, characterized by: The invention comprises a light splitting layer (1) and a polarizing layer (2); the polarizing layer (2) is detachably mounted on the upper surface of the light splitting layer (1); a first pigtail winding groove (11) is provided on the upper surface of the light splitting layer (1); a first device groove (12) is provided at the bottom of the first pigtail winding groove (11); a plurality of light splitting devices (13) are placed in the first device groove (12); an input fiber entrance (14) is provided on the circumference of the first pigtail winding groove (11); the upper surface of the polarizing layer (2) A second pigtail winding groove (21) is provided; a second device groove (22) is provided at the bottom of the second pigtail winding groove (21); a plurality of polarizing devices (23) are placed in the second device groove (22); an output fiber outlet (24) is provided on the circumference of the second pigtail winding groove (21); a fiber climbing channel (25) is provided at the bottom of the second pigtail winding groove (21); the fiber climbing channel (25) is connected to the first pigtail winding groove (11) and the second pigtail winding groove (21).

2. The portable optical splitting and polarizing module for optical fiber loop testing according to claim 1, characterized in that: A protective cover (3) is detachably mounted on the upper surface of the polarizing layer (2).

3. The portable optical splitting and polarizing module for optical fiber ring testing according to claim 2, characterized in that: The upper surface of the protective cover (3) is provided with a first annular groove (31); the lower surface of the light-splitting layer (1) is provided with a second annular groove (15); the first annular groove (31) and the second annular groove (15) are matched.

4. The portable optical splitting and polarizing module for optical fiber ring testing according to claim 1, characterized in that: The outer peripheral side of the light splitting layer (1) is provided with a receiving groove (17) for winding and receiving the optical fiber jumper.

5. The portable optical splitting and polarizing module for optical fiber ring testing according to claim 1, characterized in that: A fiber climbing protrusion (16) is provided on the inner circumference of the first pigtail winding groove (11).

6. The portable optical splitting and polarizing module for optical fiber loop testing according to claim 1, characterized in that: The polarizing layer (2) is provided with a receiving annular groove (26) on its outer peripheral side; the polarizing layer (2) is provided with an output fiber receiving channel (27); the output fiber receiving channel (27) is matched with the output fiber outlet (24); the output fiber receiving channel (27) communicates with the output fiber outlet (24) and the receiving annular groove (26).

7. The portable optical splitting and polarizing module for optical fiber ring testing according to claim 6, characterized in that: The bottom of the output fiber receiving channel (27) is configured with an upwardly convex arc surface.

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