Test system for measuring collimation characteristic of light path

Abstract

The utility model relates to the technical field of optical communication, in particular to a test system for measuring the collimation characteristic of an optical path, which comprises a sliding rail, three large-stroke sliding tables, a PD, a six-dimensional adjusting frame, a Y-axis displacement table A, a contact pin fixing jig and a collimating lens fixing jig, the PD, the six-dimensional adjusting frame and the Y-axis displacement table A are arranged on the three large-stroke sliding tables respectively, the Y-axis displacement table A is arranged in the middle, the PD and the six-dimensional adjusting frame are arranged on the two sides, the contact pin fixing jig is installed on the six-dimensional adjusting frame, and the collimating lens fixing jig is installed on the Y-axis displacement table A. The device is simple in structure, is convenient and efficient in testing, and can dynamically adjust the testing of the collimation light path according to different types of devices.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical communication technical field especially relates to a kind of for measuring the test system of optical path value characteristic. BACKGROUND

[0002] In the manufacturing process of optical communication device BOSA, RX optical receiving device is usually used to receive and couple the collimated light emitted in BSAE, and the collimated light path in the device greatly determines the coupling efficiency of the receiving end of BOSA. Therefore, in order to judge the collimated light path characteristics of the optical device, the collimation of the optical path of the device needs to be tested to ensure that the product has a perfect collimated light path. The collimated light path of the product is fixed before coupling and cannot be adjusted by adjusting the position of the device to adjust the collimated light path. This test system can dynamically adjust the position of the pin and collimating lens in the collimating system to find the best collimating position and determine the characteristics and matching degree of the component. SUMMARY

[0003] The utility model aims at providing a kind of for measuring the test system of optical path value characteristic, the system simple structure, test is convenient and efficient, can dynamically adjust the test of collimated light path according to different model devices.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A kind of for measuring the test system of optical path value characteristic, including slide rail, large stroke slide table, PD, six-dimensional adjustment frame, Y-axis displacement table A, pin fixture, collimating lens fixture, three large stroke slide tables are provided on the slide rail, the PD, six-dimensional adjustment frame and Y-axis displacement table are placed on three large stroke slide tables respectively, Y-axis displacement table A is in the middle, and PD and six-dimensional adjustment frame are on both sides, the pin fixture is installed on six-dimensional adjustment frame, and the collimating lens fixture is installed on Y-axis displacement table A.

[0006] The six-dimensional adjustment frame includes X-axis displacement table, Y-axis displacement table B and Z-axis displacement table assembled together.

[0007] Pin clamping port is provided on the pin fixture, and the pin clamping port is locked by screwing the nut.

[0008] The collimating lens fixture includes a bracket, a collimating lens clamp, a tightening stud, and an adjustment stud. The collimating lens clamp is placed in the groove on the top of the bracket. The adjustment stud is screwed into the collimating lens clamp from above and is in contact with the top of the bracket. The tightening stud is transversely screwed with the collimating lens clamp.

[0009] Compared with the prior art, the utility model has the advantages of:

[0010] The utility model discloses, the pin is fixed in the light path through pin fixed jig horizontal, through cooperation Z axle displacement table, X axle displacement table and Y axle displacement table B can adjust pin end face to the focal length position of lens, long stroke slide table has guaranteed the flexibility of system. Collimating lens is fixed on lens fixed jig, adjusts collimating lens position through Y axle displacement table A, realizes and light beam measuring system matching. After the front end light path coupling is completed, through PD and long stroke slide table can scan system light path. The system simple structure, test convenient and efficient, can according to different model device dynamic adjustment collimating light path's test. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the front view in the utility model.

[0012] Figure 2 It is the detail view of pin fixed jig in the utility model.

[0013] Figure 3 It is the detail view of collimating lens fixed jig in the utility model.

[0014] In the drawing: 1-pin fixed jig;2-collimating lens fixed jig;3-PD;4-slide rail;5-PD long stroke slide table;6-Y axle displacement table A;7-collimating lens long stroke slide table;8-pin long stroke slide table;9-Y axle displacement table B;10-X axle displacement table;11-Z axle displacement table;12-nut;13-pin clamping mouth;14-pin long stroke slide table displacement axle knob;15-Y axle displacement axle knob B;16-X axle displacement axle knob;17-Z axle displacement axle knob;18-adjusting jackscrew;19-tightens jackscrew;20-Y axle displacement axle knob A;21-collimating lens long stroke slide table displacement axle knob;22-collimating lens clamp;23-bracket. DETAILED DESCRIPTION

[0015] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0016] As Figures 1-3As shown, a test system for measuring optical path collimation characteristics, comprising slide rail 4, large stroke slide, PD 3, six-dimensional adjustment frame, Y-axis displacement table A6, pin fixing jig 1, collimating lens fixing jig 2, three large stroke slides are arranged on the slide rail 4, the PD 3, six-dimensional adjustment frame and Y-axis displacement table A6 are arranged on the three large stroke slides respectively, and the three large stroke slides are PD large stroke slide 5, collimating lens large stroke slide 7 and pin large stroke slide 8 respectively. The Y-axis displacement table A6 is in the middle, and the PD 3 and the six-dimensional adjustment frame are on both sides, the pin fixing jig 1 is installed on the six-dimensional adjustment frame, and the collimating lens fixing jig 2 is installed on the Y-axis displacement table A6.

[0017] The six-dimensional adjustment frame comprises an X-axis displacement table 10, a Y-axis displacement table B9 and a Z-axis displacement table 11 assembled together.

[0018] The pin fixing jig 1 is provided with a pin clamping port 13, and the pin clamping port 13 is locked by screwing the nut 12.

[0019] The collimating lens fixing jig 2 comprises a support 23, a collimating lens clamp 22, a tightening top screw 19 and an adjusting top screw 18, the collimating lens clamp 22 is arranged in the groove at the top of the support 23, the adjusting top screw 18 is screwed into the collimating lens clamp 22 from above and is in top contact with the support 23, and the tightening top screw 19 is transversely screwed with the collimating lens clamp 22.

[0020] The present application provides a test system for measuring optical path collimation characteristics, which is composed of a pin fixing jig 1, a six-dimensional adjustment frame composed of a Z-axis displacement table 11, an X-axis displacement table 10 and a Y-axis displacement table B9, and a pin large stroke slide 8, a pin coupling jig part; a collimating lens fixing system composed of a collimating lens fixing jig 2, a Y-axis displacement table A6 and a collimating lens large stroke slide 7; a PD part composed of a PD 3 and a PD large stroke slide 5; three parts and a slide rail 4 constitute a complete test system. The pin is clamped in the pin fixing jig 1, the divergent light emitted by the pin becomes a collimated light beam after being clamped by the collimating lens, the collimated light beam hits the PD 3, and the collimated light characteristics are observed and recorded by sliding the PD 3.

[0021] The pin fixing jig 1 is made of alloy material, so that the pin clamping port 13 can adapt to pins of different diameters, and different size pins are locked by threads, and the six-dimensional adjustment frame is adjusted after locking to make the pin light direction horizontal.

[0022] Six-dimensional adjustment frame is constituted by Z-axis displacement table 11, Y-axis displacement table B9, X-axis displacement table 10, three direction displacement tables are fixed through screw, and the fixed three direction displacement tables ensure the precise movement of the contact pin in six directions and ensure the coupling precision of the contact pin.

[0023] Collimating lens fixing jig 2 is made of alloy, and the collimating lens is made of glass, two screws are designed on the upper portion, one is a tightening top screw 19 for fixing the collimating lens, and the other is an adjusting top screw 18 for adjusting the height of the collimating lens clamp 22, so that different sizes of collimating lenses can be adapted and placed in the longitudinal center position of the PD 3.

[0024] The collimating lens fixing jig 2 is vertically connected with the Y-axis displacement table A6 and the collimating lens large stroke sliding table 7 and placed above the slide rail 4.

[0025] The PD 3 is fixed on the aluminum alloy support through screw, and the aluminum alloy support is fixed on the PD large stroke sliding table 5 through screw, and the PD large stroke sliding table 5 is placed above the slide rail 4, so that the PD 3 can scan the light path in the horizontal direction.

[0026] The use method of the utility model is:

[0027] Reference Figure 2 Loosen the contact pin clamping port 13 by rotating the nut 12, fix the contact pin with fixed optical fiber in the contact pin clamping port 13, and then tighten the nut 12 to fix the contact pin.

[0028] Reference Figure 3 Loosen the tightening top screw 19, place the collimating lens into the collimating lens clamp 22, tighten the tightening top screw 19 to fix the collimating lens, and rotate the adjusting top screw 18 to make the center position of the collimating lens and the center of the PD 3 be in the same horizontal plane.

[0029] It should be noted that the contact pin and the collimating lens are not installed in the figure.

[0030] After the pin is installed and the collimating lens, turn on the light source, adjust the Y-axis displacement shaft knob B15, X-axis displacement shaft knob 16 to adjust the end of the pin to the focal point of the collimating lens, at this time the observation PD3 should have a circular spot, and then fine-tune the Y-axis displacement shaft knob B15 and the X-axis displacement shaft knob 16 to center the spot. Rotate the PD large stroke slide 5 to move the PD3 away from the light source, at this time pay attention to the size of the spot on the PD3, when the spot on the PD3 becomes larger or smaller, at this time slightly adjust the X-axis displacement shaft knob 16, repeat the process until the spot size does not change; adjust the PD large stroke slide 5 to move the PD3 away from the light source, at this time observe the position change of the spot on the PD3, if the spot is offset, adjust the Z-axis displacement shaft knob 17, Y-axis displacement shaft knob B15 to move the spot in the opposite direction of the offset direction, repeat the process until the spot position does not offset, at this time the test system is debugged.

[0031] When testing the spot characteristics, move the PD3 to the front end of the collimating lens, move away from the light source in the set step, record the spot characteristics in the process.

Claims

1. A test system for measuring optical path value characteristics, characterized by, The utility model relates to a six-dimensional adjustment frame, which comprises a slide rail, a large-stroke slide table, a PD, a six-dimensional adjustment frame, a Y-axis displacement table A, a pin fixing jig and a collimating lens fixing jig.

2. The test system for measuring optical path value characteristics according to claim 1, wherein, The six-dimensional adjustment frame comprises an X-axis displacement table, a Y-axis displacement table B and a Z-axis displacement table assembled together.

3. The test system for measuring optical path value characteristics according to claim 1, wherein, The pin fixing jig is provided with a pin clamping opening, and the pin clamping opening is locked by screwing a nut.

4. The test system for measuring optical path value characteristics according to claim 1, wherein, The collimating lens fixing jig comprises a support, a collimating lens clamp, a screwing top screw and an adjusting top screw. The adjusting top screw is screwed into the collimating lens clamp from above and is in contact with the top of the support, and the screwing top screw is transversely screwed with the collimating lens clamp.

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