CN218156790U

CN218156790U - Pump source aging testing device

Info

Publication number: CN218156790U
Application number: CN202222426764.XU
Authority: CN
Inventors: 方玉蛟; 宋健; 胡慧璇
Original assignee: Wuhan Raycus Fiber Laser Technologies Co Ltd
Current assignee: Wuhan Raycus Fiber Laser Technologies Co Ltd
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2022-12-27
Anticipated expiration: 2032-09-13

Abstract

The application provides a pump source aging testing device, through setting up the beam combiner in the box body, the light-emitting side of beam combiner sets up emergent optic fibre in order to connect the power meter, and set up multichannel incident optical fibre, the one end of multichannel incident optic fibre is connected with the income light side of beam combiner respectively, the other end passes through a test pump source of piecing together respectively, the pump beam that a plurality of pump sources of awaiting measuring sent transmits to the beam combiner through incident optic fibre, the beam combiner passes through emergent optic fibre with pump beam transmission to the power meter, realize the aging testing to the pump source of awaiting measuring, thereby realize carrying out aging testing to a plurality of pump sources of awaiting measuring simultaneously, the problem of the whole quick-witted light-emitting aging testing of simulation laser, aging testing efficiency has been promoted.

Description

Pump source aging testing device

Technical Field

The application belongs to the technical field of semiconductor laser testing, and particularly relates to a pumping source aging testing device.

Background

With the deep application of semiconductor lasers in the fields of communication, medical treatment and the like, small semiconductor lasers increasingly use standard SMA joints to process laser output. In the production process of small semiconductor lasers, an aging test is required to verify the product reliability. In general, a plurality of semiconductor lasers are arranged in one device in a laser device complete device to meet the requirements of the device on the output power and performance.

At present, a common aging test method is to independently perform aging test by using a single semiconductor laser (pumping source), which cannot effectively simulate the light emitting state of the whole laser product, has low efficiency and is not suitable for large-scale aging test production.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a pumping source aging testing device to solve the problem that the existing aging testing device cannot perform aging testing on a plurality of semiconductor lasers.

The embodiment of the application provides a pumping source aging testing device, includes: a box body; the beam combiner is arranged in the box body and comprises a light outlet side and a light inlet side which are oppositely arranged; one end of the emergent optical fiber is connected with the light-emitting side of the beam combiner, and the light-emitting end of the emergent optical fiber extends to the outer side of the box body to be connected with a power meter; and one end of the incident optical fiber is connected with the light inlet side of the beam combiner, the light inlet end of the incident optical fiber extends to the outer side of the box body and is connected with a joint, the joint is used for connecting a pump source to be tested, and the incident optical fiber transmits a pump beam emitted by the pump source to be tested to the beam combiner so as to simultaneously perform aging test on a plurality of pump sources to be tested.

Optionally, the box body includes a first side wall opposite to the light emergent side, a first through hole for the outgoing optical fiber to penetrate out is formed in the first side wall, and the outgoing optical fiber extends to the outer side of the first side wall through the first through hole.

Optionally, an exit fiber tail pipe is inserted into the first through hole, and the exit fiber extends from the exit fiber tail pipe to the outer side of the first side wall.

Optionally, the box body includes a second sidewall opposite to the light incident side, second through holes having the same number as the incident optical fibers are formed in the second sidewall, and the incident optical fibers extend from the second through holes to the outside of the second sidewall.

Optionally, an incident optical fiber tail tube is inserted into the second through hole, and the incident optical fiber extends from the incident optical fiber tail tube to the outer side of the second side wall.

Optionally, the optical fiber junction box further comprises an armor tube, one end of the armor tube is sleeved on the incident optical fiber tail tube and located at the outer end of the box body, the joint is embedded at the other end of the armor tube, and the incident optical fiber is inserted into the armor tube.

Optionally, the joint is an SMA jumper joint.

Optionally, the box body is provided with an opening for the beam combiner to be installed in the box body, and the opening cover is provided with a cover plate.

Optionally, the number of the pump sources to be tested that the beam combiner simultaneously accesses through the incident optical fiber is not more than 48.

The pump source aging testing device provided by the embodiment of the application comprises a beam combiner arranged in a box body, an emergent optical fiber is arranged on the emergent side of the beam combiner to be connected with a power meter, multiple paths of incident optical fibers are arranged, one ends of the multiple paths of incident optical fibers are respectively connected with the incident side of the beam combiner, the other ends of the multiple paths of incident optical fibers are respectively connected with a pump source to be tested through a joint, pump beams emitted by the multiple pump sources to be tested are transmitted to the beam combiner through the incident optical fibers, the beam combiner transmits the pump beams to the power meter through the emergent optical fibers, aging testing of the pump sources to be tested is realized, and aging testing of the multiple pump sources to be tested is realized simultaneously.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can also be derived from them without inventive effort.

For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts in the following description.

Fig. 1 is a schematic structural diagram of a pump source aging test apparatus provided in an embodiment of the present application.

Fig. 2 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1.

Fig. 3 is an exploded view of fig. 1.

Fig. 4 is a schematic view of a connection structure between a pump source aging test apparatus and a pump source to be tested according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be apparent that the described embodiments are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application provides a pumping source aging testing device to solve the problem that the existing aging testing device can not simultaneously perform aging testing on a plurality of pumping sources. The following description will be made with reference to the accompanying drawings.

In order to more clearly illustrate the structure of the pump source burn-in apparatus, the pump source burn-in apparatus will be described with reference to the accompanying drawings.

Referring to fig. 1 to 4, an embodiment of the present application provides a pump source aging test apparatus 100, including: cassette 110, combiner 120, exit fiber 130, and entrance fiber 140.

The beam combiner 120 is disposed in the box body 110, the beam combiner 120 includes a light exit side 121 and a light entrance side 122 disposed oppositely, the box body 110 includes a first sidewall 111 and a second sidewall 112 disposed oppositely along the length direction, the first sidewall 111 is disposed opposite to the light exit side 121, and the second sidewall 112 is disposed opposite to the light entrance side 122.

In this embodiment, the exit optical fiber 130 is a single path, one end of the exit optical fiber 130 is connected to the light exit side 121 of the beam combiner 120, the first sidewall 111 is provided with a first through hole 111a through which the exit optical fiber 130 passes, the exit optical fiber 130 extends out of the box body 110 from the first through hole 111a, and the light exit end of the exit optical fiber 130 extends to the outer end of the box body 110 for connecting to a power meter.

The incident optical fibers 140 are multi-path, one end of the incident optical fiber 140 is connected to the light incident side 122 of the beam combiner 120, the second sidewall 112 is provided with second through holes 112a through which the incident optical fiber 140 passes, the number of the second through holes 112a corresponds to the number of the incident optical fibers 140 one to one, the incident optical fiber 140 extends out of the second through holes 112a to the outside of the box body 110, the light incident end of the incident optical fiber 140 extends to the outside of the box body 110 and is connected to a connector 141, the incident optical fiber 140 is connected to the pump source 200 to be tested through the connector 141, the incident optical fiber 140 transmits the pump beam emitted by the pump source 200 to be tested into the beam combiner 120, and the beam combiner 120 transmits the pump beam to the power meter through the emergent optical fiber 130, thereby implementing the aging test on the pump source 200 to be tested.

The connector 141 is a Sub-Miniature-a (SMA) jumper connector, which is helpful for realizing a quick component of an aging test environment and improving test efficiency.

In some implementations, the pump source aging test apparatus 100 further includes an exit fiber tail tube 150, the exit fiber tail tube 150 is inserted into the first through hole 111a, the exit fiber 130 is inserted into the exit fiber tail tube 150, and the exit fiber 130 extends from the exit fiber tail tube 150 to the outside of the first sidewall 111 of the box body 110, the exit fiber tail tube 150 forms protection for the exit fiber 130, so as to prevent the exit fiber 130 from being abraded due to friction with the inner wall of the first through hole 111a, and ensure stability of pump beam transmission.

In some implementations, the pump source aging test apparatus 100 further includes incident fiber tail tubes 160, the number of the incident fiber tail tubes 160 is the same as that of the incident fibers 140, the incident fiber tail tubes 160 are inserted into the second through holes 112a, the incident fibers 140 are inserted into the incident fiber tail tubes 160, the incident fibers 140 extend out of the second side wall 112 of the box body 110 from the incident fiber tail tubes 160, and the incident fiber tail tubes 160 form protection for the incident fibers 140, so as to prevent the incident fibers 140 from being abraded due to friction with the inner walls of the second through holes 112a, and ensure stability of transmission of the pump beams.

In some implementations, the pump source aging test apparatus 100 further includes an armor tube 170, one end of the armor tube 170 is sleeved on the incident optical fiber tail tube 160 and located at the outer end of the second side wall 112, the joint 141 is embedded at the other end of the armor tube 170, the light-entering end of the incident optical fiber 140 extends in the armor tube 170 toward the joint 141 after extending out of the incident optical fiber tail tube 160 and is finally connected to the joint 141, the armor tube 170 forms protection for the incident optical fiber 140 located between the incident optical fiber tail tube 160 and the joint 141, the service life of the incident optical fiber 140 is prolonged, the stability of pump beam propagation is ensured, and the accuracy of the aging test result is ensured.

In some implementations, the upper surface of the box body 110 is open, the opening is covered by a cover plate 113, and the design of the cover plate 113 facilitates the bundle combiner 120 to be installed in the box body 110 and can realize the sealing of the bundle combiner 120.

The pump source aging test apparatus 100 provided by the present application is assembled as follows:

outgoing fiber pigtails 150 are installed in first through holes 111a of a first side wall 111 of the cassette body 110, and a plurality of incoming fiber pigtails 160 are installed in second through holes 112a of a second side wall 112 of the cassette body 110 and fastened using screws. The combiner 120 is placed in the inner cavity of the box body 110, the outgoing optical fiber 130 at the light outgoing side 121 of the combiner 120 passes through the outgoing optical fiber tail tube 150, the multiple incoming optical fibers 140 at the light incoming side 122 of the combiner 120 pass through the incoming optical fiber tail tube 160, the combiner 120 is adjusted and fixed on the box body 110 by using screws, then the outgoing optical fiber 130 is bonded on the outgoing optical fiber tail tube 150 by using glue, and the incoming optical fiber 140 is bonded on the incoming optical fiber tail tube 160. One end of the sheathing tube 170 is fitted around the incident optical fiber tail tube 160, and the other end is fitted into the joint 141. Finally, the cover plate 113 is mounted on the case 110 using screws, completing the assembly of the pump source aging test apparatus 100.

The pump source aging test apparatus 100 provided by the present application is used as follows:

when the pump source 200 to be tested is subjected to aging test, the light outlet end (or called as free end) of the emergent optical fiber 130 is connected with a power meter, and the pump source 200 to be tested is connected with the joint 141 at the end part of the armored pipe 170, so that the rapid construction of an aging test environment can be realized. Meanwhile, one or more pump sources 200 to be tested can be selectively switched in according to needs while the aging test is carried out.

In order to simulate the whole laser, the pump source aging test device 100 can select the number of the pump sources 200 to be tested, which are simultaneously connected with the joint 141 at the end of the armored pipe 170, according to the number of the pump sources contained in the whole laser. In principle, there is no upper limit on the number of pump sources 200 to be tested supported by the pump source burn-in apparatus 100, but considering the optical power that can be carried by the outgoing optical fiber 130 and the manufacturability of the apparatus, the maximum number of pump sources 200 to be tested that can be simultaneously accessed by the pump source burn-in apparatus 100 is set to be not more than 48 (including 48).

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or as implying a number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features.

The pump source aging test device provided in the embodiment of the present application is described in detail above, and a specific example is applied in the description to explain the principle and the embodiment of the present application, and the description of the above embodiment is only used to help understanding the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A pump source aging test apparatus, comprising:

a case body;

the beam combiner is arranged in the box body and comprises a light emergent side and a light incident side which are arranged oppositely;

one end of the emergent optical fiber is connected with the light-emitting side of the beam combiner, and the light-emitting end of the emergent optical fiber extends to the outer side of the box body to be connected with a power meter; and

one end of the incident optical fiber is connected with the light inlet side of the beam combiner, the light inlet end of the incident optical fiber extends to the outer side of the box body and is connected with a joint, the joint is used for connecting a pump source to be tested, and the incident optical fiber transmits a pump beam emitted by the pump source to be tested to the beam combiner so as to simultaneously perform aging test on a plurality of pump sources to be tested.

2. The pump source aging test device of claim 1, wherein the box body comprises a first sidewall opposite to the light exit side, the first sidewall is provided with a first through hole for the exit fiber to pass through, and the exit fiber extends from the first through hole to the outside of the first sidewall.

3. The pump source degradation testing apparatus of claim 2, wherein an exit fiber tail tube is inserted into the first through hole, and the exit fiber extends from the exit fiber tail tube to an outer side of the first sidewall.

4. The pump source aging test device according to claim 1, wherein the box body includes a second sidewall disposed opposite to the light incident side, the second sidewall is provided with second through holes having the same number as the incident optical fibers, and the incident optical fibers extend from the second through holes to an outer side of the second sidewall.

5. The pump source degradation testing apparatus of claim 4, wherein an incident fiber tail tube is inserted into the second through hole, and the incident fiber extends from the incident fiber tail tube to an outer side of the second side wall.

6. The pump source aging test device of claim 5, further comprising an armor tube, wherein one end of the armor tube is sleeved on the incident optical fiber tail tube and is located at the outer end of the box body, the joint is embedded at the other end of the armor tube, and the incident optical fiber is inserted into the armor tube.

7. Pump source aging test device according to claim 1 or 6, characterized in that the joint is an SMA jumper joint.

8. The pump source aging test device of claim 1, wherein the box body is provided with an opening for the beam combiner to be installed inside the box body, and the opening is covered by a cover plate.

9. The pump source aging test device of claim 1, wherein the number of the pump sources to be tested that the beam combiner simultaneously accesses through the incident optical fiber is not more than 48.