Optical path active coupling alignment device and method

Abstract

The present invention discloses an optical path active coupling alignment device and method, which is used to connect the ferrule of an optical fiber jumper and the optical transceiver port of an optical engine module. The alignment device includes a base and two test boards that are spaced left and right and are horizontally arranged on the base. The upper end of the test board is provided with a connector for connecting the optical engine module. The two optical transceiver ports of the optical engine module are horizontally arranged backward. The front side of each test board is provided with a fixed block fixedly connected to the base. The upper end of the fixed block is provided with a sliding mechanism that can slide back and forth. The upper end of the sliding mechanism is provided with two card slots for fixing the two ferrules of the optical fiber jumper. The two ferrules for fixing the optical fiber jumper are respectively embedded in the two card slots. Under the action of external force, the sliding mechanism drives the two ferrules to move back and forth. The present invention provides an optical path active coupling alignment device and method to prevent the problem of optical fiber rotation during transportation vibration.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and more specifically, to an optical path active coupling alignment device and method. Background Art

[0002] At present, there is a huge demand for optical modules in data centers, especially AOC series optical modules. COB technology is one of the main low-cost technical solutions.

[0003] One COB process is to mount the optical transceiver chip, driver chip, amplifier chip and other electronic components on the circuit board through SMD, and then make an optical engine module by coupling with the lens. To complete the production of AOC optical module, it is necessary to match the optical fiber jumper and the optical engine module, and the most important thing is to couple and match the optical fiber in the optical jumper with the optical transceiver port in the optical engine module.

[0004] In the fiber patch cord manufacturing process, the optical fiber is first inserted into the ceramic ferrule, then cured by dispensing glue, and then the end face is polished to obtain the final fiber end face shape. Since the polished fiber end face is not a regular shape, that is, the four-way nature of the fiber end face. During the rotation of the optical transceiver port in the optical engine module, the reflection and loss of the optical signal will change.

[0005] After the ceramic ferrule is inserted into the lens, there is a distance between the fiber end face and the lens, which is the focal length of the lens. When the optical module is in use, if dust or water vapor stays in this distance, the optical path will change due to the difference in refractive index between dust and water vapor and air. Summary of the invention

[0006] The purpose of the present invention is to provide an optical path active coupling alignment device and method to prevent the problem of optical fiber rotation during transportation vibration.

[0007] In order to achieve these purposes and other advantages according to the present invention, there is provided an optical path active coupling alignment device for connecting the ferrule of an optical fiber jumper and the optical transceiver port of an optical engine module, comprising a base and two test boards spaced left and right and horizontally arranged on the base, the upper end of the test board is provided with a connector for connecting the optical engine module, the two optical transceiver ports of the optical engine module are horizontally arranged rearward, the front side of each test board is provided with a fixed block fixedly connected to the base, the upper end of the fixed block is provided with a sliding mechanism that can slide back and forth, the upper end of the sliding mechanism is provided with two card slots for fixing the two ferrules of the optical fiber jumper, the two ferrules for fixing the optical fiber jumper are respectively embedded in the two card slots, and under the action of external force, the sliding mechanism drives the two ferrules to move back and forth.

[0008] Preferably, in the optical path active coupling alignment device described above, an open groove is provided on the front side of the upper end of the fixed block, a sliding block is provided in the open groove, the sliding block is slidable forward and backward in the open groove, a limit block is provided on the upper end of the sliding block for sliding forward and backward, two slots are provided on the upper end of the limit block, a pull rod is provided in the open groove along the front-to-back direction, the front end of the pull rod is connected to the rear end of the sliding block, and the rear end of the pull rod passes backward through the rear inner wall of the open groove and extends to the rear side of the fixed block, an elastic member compressed along the front-to-back direction is provided between the sliding block and the rear inner wall of the open groove, the front and rear ends of the elastic member are respectively connected to the rear end of the sliding block and the rear inner wall of the open groove, and the sliding block, the limit block, the pull rod and the elastic member constitute the sliding mechanism.

[0009] Preferably, in the optical path active coupling alignment device, two strip-shaped through holes are provided at left and right intervals on the upper end of the limit block, and a protrusion corresponding to the two strip-shaped through holes is provided on the upper end of the slider, and the protrusion can be slidably arranged in the corresponding strip-shaped through holes.

[0010] Preferably, in the optical path active coupling alignment device, the elastic member is a spring coaxially sleeved on the pull rod.

[0011] Preferably, in the optical path active coupling alignment device, the pull rod is a bolt.

[0012] Preferably, in the optical path active coupling alignment device, the upper end of the fixing block is provided with an arc groove corresponding to the end of the optical fiber jumper.

[0013] Preferably, in the optical path active coupling alignment device, a pressure block is horizontally provided on the left and right sides of the upper end of the fixed block, and the pressure blocks extend horizontally to the top of the opening groove. The upper end of the sliding block is flush with the upper end of the fixed block and can be slidably fitted with the lower end of the pressure block.

[0014] Preferably, the optical path active coupling alignment device further includes a UV glue curing mechanism, which includes a slide rail and two UV lamps corresponding to the two test boards respectively, and the slide rail is horizontally arranged above the base along the left and right directions, and the UV lamps are all arranged above the corresponding test boards, and slide left and right on the slide rail through a sliding assembly.

[0015] Preferably, in the optical path active coupling alignment device, the sliding assembly includes a sliding block and a connecting block, the sliding block is slidable left and right on the slide rail, one end of the connecting block is connected to the corresponding sliding block, and the other end thereof extends horizontally to above the corresponding test plate and is connected to the corresponding ultraviolet lamp.

[0016] An optical path active coupling alignment method, using the above optical path active coupling alignment device, comprises:

[0017] S1. The two ferrules at one end of the optical fiber jumper are respectively embedded in the two corresponding slots of the sliding mechanism. Under the action of external force, the sliding mechanism drives the two ferrules at one end of the optical fiber jumper and the corresponding optical engine module to move backward to the extreme position, and then the two optical transceiver ports of the optical engine module are respectively connected to the two ferrules at one end of the optical fiber jumper;

[0018] S2. The external force is removed, and the sliding mechanism drives the two ferrules at one end of the optical fiber jumper and the corresponding optical engine module to move forward to the limit position, so that the gold finger of the corresponding optical engine module is inserted into the corresponding connector at the upper end of the test board;

[0019] S3, applying UV glue at the connection between the ferrule and the corresponding optical transceiver port, and moving the corresponding UV lamp to above the connection between one end of the optical fiber jumper and the corresponding optical engine module, so that the UV glue at the connection between the ferrule and the corresponding optical transceiver port is cured by the irradiation of the UV lamp;

[0020] S4. Repeat S1-S3 to connect the two ferrules at the other end of the optical fiber jumper to the two optical transceiver ports of the corresponding optical engine module.

[0021] The optical path active coupling method of the present invention first ensures that the optical fiber and the lens are well matched, and then solidifies by dispensing glue to achieve local sealing, while preventing the problem of optical fiber rotation during transportation vibration.

[0022] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the alignment device of the present invention;

[0024] Figure 2 This is a schematic diagram of the connection between the fixing block and the test board of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the sliding mechanism described in the present invention. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0027] It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] like Figure 1-Figure 3 As shown, an embodiment of the present invention provides an optical path active coupling alignment device for connecting the ferrule of an optical fiber jumper 1 and the optical transceiver port of an optical engine module 2, comprising a base 3 and two test boards 4 which are spaced apart from each other and are horizontally arranged on the base 3, the upper end of the test board 4 is provided with a connector 5 for connecting the optical engine module 2, the two optical transceiver ports of the optical engine module 2 are horizontally arranged backward, the front side of the test board 4 is provided with a fixed block 6 fixedly connected to the base 3, the upper end of the fixed block 6 is provided with a sliding mechanism which can slide back and forth, the upper end of the sliding mechanism is provided with two card grooves 7 for fixing the two ferrules of the optical fiber jumper 1, the two ferrules for fixing the optical fiber jumper 1 are respectively embedded in the two card grooves 7, and under the action of external force, the sliding mechanism drives the two ferrules to move back and forth.

[0029] In this embodiment, if Figure 1 As described above, two ferrules are respectively provided at both ends of a general optical fiber jumper 1. When the two ends of the optical fiber jumper 1 are to be connected to two optical engine modules 2 respectively, the two ferrules at both ends of the optical fiber jumper 1 need to be connected to the two optical transceiver ports of the corresponding optical engine modules 2 respectively. Therefore, in this embodiment, two test boards 4 are horizontally arranged at the upper end of the base 3, and a connector 5 for connecting the gold finger of the optical engine module 2 is provided at the upper end of the test board 4. When connecting the ferrule of the optical fiber jumper 1 and the optical transceiver port of the optical engine module 2, the two ferrules at one end of the optical fiber jumper 1 are fixed by a sliding mechanism, and then the two ferrules are respectively connected to the two optical transceiver ports of the corresponding optical engine module 2, and a forward force is applied to the two ferrules and the corresponding optical engine module 2 by the sliding mechanism to make them resist, and then UV glue is applied at the connection between the two, and the glue curing between the ferrule of the optical fiber jumper 1 and the optical transceiver port of the optical engine module 2 is completed.

[0030] Preferably, as another embodiment of the present invention, an open groove 8 is provided on the front side of the upper end of the fixing block 6, a slider 9 is provided in the open groove 8, the slider 9 is slidably arranged in the open groove 8, and a limit block 10 is slidably arranged on the upper end of the slider 9, and two strip-shaped through holes are provided at intervals on the left and right of the upper end of the limit block 10, and a protrusion 14 corresponding to the two strip-shaped through holes is provided on the upper end of the slider 9, and the protrusion 14 is slidably arranged in the corresponding strip-shaped through holes; the upper end of the limit block 10 is provided with two said card slots 7, and the inner side of the open groove 8 is provided with a protrusion 14 corresponding to the two strip-shaped through holes .... A pull rod 11 is provided in the front-to-back direction, and the pull rod 11 is a bolt. The front end of the pull rod 11 is connected to the rear end of the slider 9, and the rear end thereof passes backward through the rear inner wall of the opening groove 8 and extends to the rear side of the fixed block 6. An elastic member 13 compressed along the front-to-back direction is provided between the slider 9 and the rear inner wall of the opening groove 8. The elastic member 13 is a spring coaxially sleeved on the pull rod 11, and the front and rear ends of the elastic member 13 are respectively connected to the rear end of the slider 9 and the rear inner wall of the opening groove 8. The slider 9, the limit block 10, the pull rod 11 and the elastic member 13 constitute the sliding mechanism.

[0031] In this embodiment, when there is no external force, the elastic member 13 is in a compressed state, and applies a forward force to the slider 9, thereby applying a forward force to the two ferrules and the corresponding optical engine module 2, so that they are pressed against the corresponding connector 5, thereby ensuring that the ferrules and the corresponding optical transceiver ports are stably connected to avoid rotation between the two. In addition, in this embodiment, two strip-shaped through holes are provided at intervals on the left and right sides of the upper end of the limit block 10, and the upper end of the slider 9 is provided with protrusions 14 corresponding to the two strip-shaped through holes respectively. The protrusions 14 can be slidably arranged in the corresponding strip-shaped through holes, and the protrusions 14 and the corresponding strip-shaped through holes are connected to each other. The connection allows the slider 9 and the limit block 10 to slide forward and backward. When in use, first pull the pull rod 11 backward with your hand. At this time, the elastic member 13 is compressed and the pull rod 11 drives the slider 9 to slide backward. At this time, the protrusion 14 slides in the corresponding strip through hole and finally drives the limit block 10 to move backward. When the hand no longer pulls the pull rod 11, the slider 9 moves forward under the action of the elastic member 13. At this time, the protrusion 14 slides in the corresponding strip through hole and finally drives the limit block 10 to move forward, until finally the elastic member 13 exerts a forward force on the slider 9, exerting a forward force on the two ferrules and the corresponding optical engine module 2.

[0032] Preferably, as another embodiment of the present invention, an arc-shaped groove 15 corresponding to the end of the optical fiber jumper 1 is provided at the upper end of the fixing block 6 .

[0033] In this embodiment, an arc groove 15 corresponding to the end of the optical fiber jumper 1 is provided at the upper end of the fixed block 6, and the end of the optical fiber jumper 1 can be placed in the corresponding arc groove 15, so that when the core of the optical fiber jumper 1 and the optical transceiver port of the optical engine module 2 are connected, the position of the end of the optical fiber jumper 1 is more stable.

[0034] Preferably, as another embodiment of the present invention, a pressing block 16 is horizontally provided on the left and right sides of the upper end of the fixed block 6, and the pressing blocks 16 extend horizontally to the top of the opening groove 8. The upper end of the sliding block 9 is flush with the upper end of the fixed block 6, and can be slidably fitted with the lower end of the pressing block 16.

[0035] In this embodiment, two pressing blocks 16 are provided to limit the position of the upper end of the sliding block 9 , so that the sliding block 9 can slide in the opening groove 8 more stably.

[0036] Preferably, as another embodiment of the present invention, it also includes a UV glue curing mechanism, which includes a slide rail 17 and two ultraviolet lamps 18 corresponding to the two test boards 4 respectively, the slide rail 17 is horizontally arranged above the base 3 along the left and right directions, the ultraviolet lamps 18 are all arranged above the corresponding test boards 4, and all slide left and right on the slide rail 17 through a sliding assembly; the sliding assembly includes a sliding block 19 and a connecting block 20, the sliding block 19 is slidable left and right on the slide rail 17, one end of the connecting block 20 is connected to the corresponding sliding block 19, and the other end thereof extends horizontally to above the corresponding test board 4 and is connected to the corresponding ultraviolet lamp 18.

[0037] In this embodiment, the corresponding ultraviolet lamp 18 is driven to slide left and right by the sliding assembly, so that when dispensing glue, the ultraviolet lamp 18 is moved to one side of the connection between the ferrule of the optical fiber jumper 1 and the optical transceiver port of the optical engine module 2, which is convenient for the dispensing operation. After the dispensing glue is completed, the corresponding ultraviolet lamp 18 is driven by the sliding assembly to move to the top of the connection between the ferrule of the corresponding optical fiber jumper 1 and the optical transceiver port of the optical engine module 2, so that the UV glue is cured by the ultraviolet lamp 18.

[0038] The present invention also provides an optical path active coupling alignment method, using the above optical path active coupling alignment device, comprising:

[0039] S1. The two ferrules at one end of the optical fiber jumper 1 are respectively embedded in the two corresponding slots 7 of the sliding mechanism. Under the action of external force, the sliding mechanism drives the two ferrules at one end of the optical fiber jumper 1 and the corresponding optical engine module 2 to move backward to the extreme position, and then the two optical transceiver ports of the optical engine module 2 are respectively connected to the two ferrules at one end of the optical fiber jumper 1;

[0040] S2. The external force is removed, and the sliding mechanism drives the two ferrules at one end of the optical fiber jumper 1 and the corresponding optical engine module 2 to move forward to the limit position, so that the gold finger of the corresponding optical engine module 2 is inserted into the corresponding connector 5 at the upper end of the test board 4;

[0041] S3, applying UV glue at the connection between the ferrule and the corresponding optical transceiver port, and moving the corresponding UV lamp 18 above the connection between one end of the optical fiber jumper 1 and the corresponding optical engine module 2, so that the UV glue at the connection between the ferrule and the corresponding optical transceiver port is cured by the irradiation of the UV lamp 18;

[0042] S4 , repeat S1 - S3 to connect the two ferrules at the other end of the optical fiber jumper 1 to the two optical transceiver ports of the corresponding optical engine module 2 .

[0043] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the embodiments shown and described herein.

Claims

1. A method for active coupling alignment of an optical path, characterized in that: Alignment methods include: S1. The two ferrules at one end of the optical fiber jumper (1) are respectively embedded in the two corresponding slots (7) of the sliding mechanism. Under the action of external force, the sliding mechanism drives the two ferrules at one end of the optical fiber jumper (1) and the corresponding optical engine module (2) to move backward to the extreme position, and then the two optical transceiver ports of the optical engine module (2) are respectively connected to the two ferrules at one end of the optical fiber jumper (1); S2, the external force is removed, and the sliding mechanism drives the two ferrules at one end of the optical fiber jumper (1) and the corresponding optical engine module (2) to move forward to the extreme position, so that the gold finger of the corresponding optical engine module (2) is inserted into the corresponding connector (5) at the upper end of the test board (4); S3, applying UV glue at the connection between the ferrule and the corresponding optical transceiver port, and moving the corresponding UV lamp (18) above the connection between one end of the optical fiber jumper (1) and the corresponding optical engine module (2), so that the UV glue at the connection between the ferrule and the corresponding optical transceiver port is cured by irradiation of the UV lamp (18); S4, repeat S1-S3 to connect the two ferrules at the other end of the optical fiber jumper (1) to the two optical transceiver ports of the corresponding optical engine module (2); Based on an optical path active coupling alignment method, an optical path active coupling alignment device comprises an ferrule for connecting an optical fiber jumper (1), an optical transceiver port of an optical engine module (2), a base (3), and two test boards (4) spaced apart from each other and horizontally arranged on the base (3); a connector (5) for connecting the optical engine module (2) is arranged at the upper end of the test board (4); the two optical transceiver ports of the optical engine module (2) are arranged horizontally and facing backward; a fixing block (6) fixedly connected to the base (3) is arranged at the front side of each test board (4); a sliding mechanism that can slide forward and backward is arranged at the upper end of the fixing block (6); two card slots (7) for fixing two ferrules of the optical fiber jumper (1) are arranged at the upper end of the sliding mechanism; the two ferrules for fixing the optical fiber jumper (1) are respectively embedded in the two card slots (7); under the action of an external force, the sliding mechanism drives the two ferrules to move forward and backward; An open slot (8) is provided at the front side of the upper end of the fixing block (6), a sliding block (9) is provided in the opening slot (8), the sliding block (9) is slidably arranged in the opening slot (8) forwards and backwards, a limit block (10) is provided at the upper end of the sliding block (9) which is slidably arranged forwards and backwards, two of the clamping slots (7) are provided at the upper end of the limit block (10), a pull rod (11) is provided in the opening slot (8) along the front-to-back direction, and the front end of the pull rod (11) is in contact with the rear end of the sliding block (9). The sliding block (9) is connected to the rear end thereof, and its rear end passes through the rear inner wall of the opening groove (8) and extends to the rear side of the fixing block (6); an elastic member (13) compressed along the front-to-back direction is provided between the sliding block (9) and the rear inner wall of the opening groove (8); the front and rear ends of the elastic member (13) are respectively connected to the rear end of the sliding block (9) and the rear inner wall of the opening groove (8); the sliding block (9), the limiting block (10), the pulling rod (11) and the elastic member (13) constitute the sliding mechanism; It also comprises a UV glue curing mechanism, the UV glue curing mechanism comprising a slide rail (17) and two UV lamps (18) respectively corresponding to the two test plates (4), the slide rail (17) being horizontally arranged above the base (3) in the left-right direction, the UV lamps (18) being arranged above the corresponding test plates (4) and sliding left-right on the slide rail (17) via a sliding assembly.

2. The optical path active coupling alignment method according to claim 1, characterized in that: The upper end of the limit block (10) is provided with two strip-shaped through holes spaced apart from each other on the left and right sides, and the upper end of the slider (9) is provided with protrusions (14) respectively corresponding to the two strip-shaped through holes, and the protrusions (14) are slidably arranged in the corresponding strip-shaped through holes.

3. The optical path active coupling alignment method according to claim 1, characterized in that: The elastic member (13) is a spring coaxially sleeved on the pull rod (11).

4. The optical path active coupling alignment method according to claim 3, characterized in that: The pull rod (11) is a bolt.

5. The optical path active coupling alignment method according to claim 1, characterized in that: The upper end of the fixing block (6) is provided with an arc-shaped groove (15) corresponding to the end of the optical fiber jumper (1).

6. The optical path active coupling alignment method according to claim 1, characterized in that: A pressing block (16) is horizontally arranged on the left and right sides of the upper end of the fixed block (6), and the pressing blocks (16) extend horizontally to the top of the opening groove (8). The upper end of the sliding block (9) is flush with the upper end of the fixed block (6) and can be slidably fitted with the lower end of the pressing block (16).

7. The optical path active coupling alignment method according to claim 1, characterized in that: The sliding assembly comprises a sliding block (19) and a connecting block (20); the sliding block (19) is slidably arranged on the slide rail (17) to the left and right; one end of the connecting block (20) is connected to the corresponding sliding block (19), and the other end thereof extends horizontally to above the corresponding test plate (4) and is connected to the corresponding ultraviolet lamp (18).

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