CN113686554A - Laser module aging unit, aging apparatus and aging method thereof - Google Patents
Laser module aging unit, aging apparatus and aging method thereof Download PDFInfo
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- CN113686554A CN113686554A CN202111065134.8A CN202111065134A CN113686554A CN 113686554 A CN113686554 A CN 113686554A CN 202111065134 A CN202111065134 A CN 202111065134A CN 113686554 A CN113686554 A CN 113686554A
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- 230000032683 aging Effects 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 91
- 238000001816 cooling Methods 0.000 claims description 39
- 230000005855 radiation Effects 0.000 claims description 20
- 239000000758 substrate Substances 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000001678 irradiating effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 description 8
- 230000017525 heat dissipation Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
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- 238000012216 screening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0207—Details of measuring devices
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Abstract
The invention discloses a laser module aging unit, an aging device and a method thereof. The laser module aging unit comprises a tray, a wire holder, a laser module assembly, a laser module aging power measuring device, a power supply and a water pipe, wherein the tray comprises a supporting plate, a front end plate and a rear end plate, the front end plate is fixed at the front end of the supporting plate, the rear end plate is fixed at the rear end of the supporting plate, the tray, the front end plate and the rear end plate jointly form a U-shaped structure, the wire holder, the laser module aging power measuring device and the power supply are sequentially arranged on the supporting plate along the front-rear direction, the water pipe is connected with a water cooler and the laser module assembly, the laser module aging unit is of a drawer type structure, and can be arranged on a cabinet in an array mode, so that the occupied space is small, the disassembly and assembly are convenient, and the working efficiency is improved.
Description
Technical Field
The invention relates to the technical field of laser module aging, in particular to a laser module aging unit, an aging device and an aging method thereof.
Background
Semiconductor lasers have been widely used in military, communication, projection, medical treatment, illumination, and scientific research fields due to their advantages of wide wavelength range, small size, light weight, and long lifetime, and the demand is increasing. The aging of the semiconductor laser is a production inspection process which is required to be carried out before products of manufacturers leave a factory, and the quality and the service life of the laser after aging screening can be ensured.
Disclosure of Invention
The invention aims to provide a laser module aging unit, aging equipment and an aging method which occupy small space and are convenient to disassemble and assemble.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides an ageing unit of laser module, its includes tray, wire holder, laser module subassembly, the ageing power measuring device of laser module, power supply ware and water pipe, the tray includes layer board, front end plate and back end plate, the front end plate is fixed in the layer board front end, the back end plate is fixed in the layer board rear end, three form a U-shaped structure jointly, the wire holder laser module subassembly laser module ageing power measuring device with the power supply ware along the fore-and-aft direction install in proper order in the layer board, water piping connection water-cooled generator with laser module subassembly.
In order to achieve the purpose, the invention also adopts the following technical scheme: the laser module aging equipment comprises a cabinet and laser module aging units, wherein the laser module aging units are arranged in a matrix and are movably inserted into the cabinet.
In order to achieve the purpose, the invention also adopts the following technical scheme: a method of aging, comprising the steps of:
s1, placing the laser module on a water-cooling base;
s2, manually pulling a handle of a quick clamp to enable the quick clamp and the water-cooling base to clamp and fix the laser module;
s3, irradiating laser emitted by a laser module on a front heat radiation body, sequentially penetrating a front through hole of the front heat radiation body and a rear through hole of a rear heat radiation body to irradiate the arc-shaped groove of a laser collecting strip, wherein the front heat radiation body is positioned behind the rear heat radiation body, and the front heat radiation hole and the rear heat radiation hole are aligned front and back; and
and S4, after being reflected for multiple times by the inner side wall of the arc-shaped groove, the small amount of laser is finally concentrated on a photoelectric sensor, and the photoelectric sensor converts the laser into an electric signal to realize the sampling detection of the power change trend of the laser module.
The laser module aging unit adopts a drawer type structure, can be arranged on the rack in an array mode, occupies small space, is convenient to disassemble and assemble, and improves the working efficiency; the signal wire of the laser module is clamped and fixed with the wiring clamp of the wiring holder, so that the electrical connection between the laser module and the wiring holder is realized, and the connection is simple, convenient and easy; the water pipe is provided with a flowmeter and a flow regulating valve, the flowmeter is used for detecting the flow change of water in the water pipe, and the flow regulating valve is used for controlling or even closing the water flow according to the aging test requirement; the arc-shaped groove is formed in the laser collecting strip, sampled laser is concentrated on the photoelectric sensor for measurement after being reflected for multiple times through the arc-shaped recess, the purpose of collecting the power of the laser module is achieved by only using one photoelectric sensor, and the laser module power collecting device is simple in structure, simple in working principle and good in economical efficiency. The laser module aging equipment occupies less space, independently operates among the laser module aging units, is not interfered with each other, improves the working efficiency and stability, and simultaneously facilitates the maintenance of the laser module aging units. The laser module aging method is simple in working principle and capable of rapidly testing the change trend of the laser power of the laser module in real time.
Drawings
Fig. 1 is a perspective view of a laser module aging unit of the present invention.
Fig. 2 is a perspective view of another angle of the aging unit of the laser module of the present invention.
Fig. 3 is an exploded perspective view of the aging unit of the laser module of the present invention.
Fig. 4 is a perspective view of a laser module assembly of the laser module aging unit of the present invention.
Fig. 5 is an exploded perspective view of the laser module assembly of the laser module burn-in unit of the present invention.
Fig. 6 is a cross-sectional view of a water-cooled plate of the aging unit of the laser module of the present invention.
Fig. 7 is a cross-sectional view of a laser module assembly of the laser module burn-in unit of the present invention.
Fig. 8 is an enlarged view within a circle in fig. 7.
Fig. 9 is a perspective view of a quick clamp for a laser module assembly of the laser module burn-in unit of the present invention.
Fig. 10 is an exploded perspective view of a quick clamp for a laser module assembly of the laser module aging unit of the present invention.
Fig. 11 is a perspective view of a laser module aging power measuring apparatus of the laser module aging unit of the present invention.
Fig. 12 is a sectional view of a laser module aging power measuring apparatus of the laser module aging unit of the present invention.
Fig. 13 is a perspective view of another angle of the laser module aging power measuring apparatus of the laser module aging unit of the present invention.
Fig. 14 is an exploded perspective view of a laser module aging power measuring device of the laser module aging unit of the present invention.
Fig. 15 is an exploded perspective view of another angle of the laser module aging power measuring device of the laser module aging unit of the present invention.
Fig. 16 is a front view of the laser module burn-in apparatus of the present invention.
Fig. 17 is a schematic water path diagram of the laser module aging apparatus of the present invention.
Detailed Description
Referring to fig. 1 to 3, the present invention discloses a laser module aging unit 100, which is inserted into a cabinet 205 of a laser module aging apparatus 200 in a drawer type structure, wherein a plurality of laser module aging units 100 can be inserted into one cabinet 205, and the laser module aging units 100 are arranged in an array manner on the cabinet, so that the laser module aging unit occupies a small space, is convenient to disassemble and assemble, and improves the working efficiency.
The laser module aging unit 10 includes a tray 10, a wire holder 20, a laser module assembly 30, a laser module aging power measuring device 40, a power supply 50, and a water pipe 60.
The tray 10 comprises a horizontal supporting plate 11, a front end plate 12 and a rear end plate 13, wherein the front end plate 12 is fixed at the front end of the supporting plate 11, the rear end plate 13 is fixed at the rear end of the supporting plate 11, and the three form a U-shaped structure together. The wire holder 20, the laser module assembly 30, the laser module deterioration power measuring device 40, and the power supply 50 are sequentially fixed to the pallet 11 in the front-rear direction, and are interposed between the front end plate 12 and the rear end plate 13.
The wire holder 20 is provided with two soldering-free wire clamps 21.
The laser module assembly 30 comprises a water-cooling base 31, a quick clamp 32 and a laser module 33, wherein the quick clamp 32 and the laser module 33 are installed on the water-cooling base 30, and the quick clamp 32 is a standard component and used for downwards abutting against the laser module 33 on the water-cooling base 31.
Referring to fig. 4 to 10, the water-cooled base 31 includes a water-cooled plate 311, a bottom plate 312 and a check valve 313, the water-cooled plate 311 includes an upper surface, a lower surface and a plurality of side surfaces between the upper surface and the lower surface, and a water inlet connector 314 and a water outlet connector 315 are respectively connected to two opposite side surfaces. A water flow channel (not shown) is arranged in the water cooling plate 311, the water flow channel is communicated with the water inlet connector 314, the water outlet connector 315 and the check valve 313, the check valve 313 is arranged on the upper surface of the upper cooling plate 311 and is communicated with the water flow channel, the check valve 313 is in a normally closed state, when the laser module 33 is placed on the upper surface of the upper cooling plate 311, the laser module 33 is pressed against the check valve 313, the check valve 313 is opened, then, water in the water cooling plate 311 flows out after entering the laser module 33 and then enters the water cooling plate 311 again, heat of the laser module 33 is taken away, and heat dissipation of the laser module 33 is achieved.
Further, the water flow passage of the water cooling plate 311 includes a first water inlet passage 3111, a second water inlet passage 3112, a first water outlet passage 3113, a second water outlet passage 3114 and a mounting hole 3115. The first water inlet passage 3111 and the first water outlet passage 3113 extend horizontally, and the second water inlet passage 3112 and the second water outlet passage 3114 are horizontally spaced apart, extend vertically, respectively, and penetrate the horizontal plate 11 vertically. A temperature sensor 3116 is installed in the mounting hole 3115 for measuring a real-time temperature of the water-cooling plate 311.
Further, the check valve 313 includes two movable water pipes 3131, two guide rings 3132, two O-rings 3133, and two springs 3134. The movable water pipes 3131 are movably disposed in the second water inlet channel 3112 and the second water outlet channel 3114 of the water cooling plate 311 up and down one by one, and the upper end of the movable water pipes protrudes out of the water cooling plate 311; a guide ring 3132 and a sealing ring 3133 are sleeved on the movable water pipe 3131, and in the limiting groove 1110, the sealing ring 3133 is positioned above the guide ring 3132 and between the laser module 33, the guide ring 3132 and the movable water pipe 3131; the spring 3134 is located in the water passage and sleeved on the lower end of the movable water pipe 3131, and the spring 3134 presses the movable water pipe 3131 upwards. The side wall of the movable water pipe 3131 is provided with a through hole 3138, and in the initial position, the through hole 130 is blocked by the side wall of the water flow passage, thereby blocking the flow of water.
The rapid clamp 32 is mounted on the water cooling plate 311 and located on the front side of the laser module 33, so that the operation is simple and convenient, and the laser module 33 is reliably fixed.
The laser module 33 is provided with an external signal wire 330, one end of the signal wire 330 is connected with the laser module 33, and the other end of the signal wire 330 is clamped and fixed by the wiring clamp 21 of the wiring holder 20, so that the laser module 33 and the wiring holder 20 are electrically connected, and the connection is simple, convenient and easy. The lower surface of the laser module 33 is provided with a water inlet 331 and a water outlet 332, which are aligned and communicated with the corresponding movable water pipe 3131, when the check valve 313 is opened, the water in the water cooling plate 11 enters from the water inlet 331 and flows out from the water outlet 332 to guide out the heat on the laser module 33.
The quick clamp 32 includes a bracket 320, a first lever 321, a second lever 322, a handle 323, a pressing rod 324, an elastic pad 325, and a plurality of shafts 326. The bracket 321 is "n" shaped, and fixes the upper surface of the water-cooling plate 311 downward and is located in front of the laser module 33, the bracket 320 includes an upper connection part 3201 and a lower connection part 3202 located below the upper connection part 3201, the upper connection part 3201 and the lower connection part 3202 are staggered up and down, and the lower connection part 3202 is closer to the laser module 33 than the upper connection part 3201.
The first lever 321 is in a long strip shape, is connected between the upper connecting portion 3201 and the pressing rod 324, and includes a first end portion 3211, a second end portion 3212 opposite to the first end portion 3211 in the length direction of the first lever 321, and a pivoting portion 3213 located between the first end portion 3211 and the second end portion 3212, wherein the first end portion 3211 is rotatably connected with the upper connecting portion 3201 through a rotating shaft 326, and the second end portion 3212 is fixed with the pressing rod 324. The second lever 322 includes a first connecting end 3221 and a second connecting end 3222, which are opposite to each other, and the first connecting end 3221 is pivotally connected to the pivoting portion 3213 via the rotating shaft 326.
The handle 323 has a tuning fork structure, and includes an operating portion 3231 and a pair of arm portions 3232 extending from the operating portion 3231, the second lever 322 is located between the pair of arm portions 3232, the arm portion 3232 includes a first connecting portion 32321 and a second connecting portion 32322, and the second connecting portion 32322 is closer to the operating portion 3231 than the first connecting portion 32321. The first connecting portion 32321 is rotatably coupled to the lower connecting portion 212 by the rotation shaft 326, and the second connecting portion 32322 is rotatably coupled to the second connecting end 3222 of the second lever 322 by the rotation shaft 326.
The elastic pad 325 is made of an elastic material, and is sleeved at the end of the pressing rod 324 for pressing against the laser module 33, so that the rapid clamp 32 elastically presses against the laser module 33.
When the laser module 33 is installed on the water-cooled base 31, the laser module 33 presses the check valve 313 to be opened, water flows in the laser module 33, heat of the laser module 33 is taken away, and a heat dissipation function is achieved, then, the first connecting end 3221 of the second lever 322 drives the first end portion 3211 of the first lever 321 to rotate relative to the upper connecting portion 3201 of the bracket 320, then, the second end portion 3212 of the first lever 321 drives the pressing rod 324 to move downwards, the elastic pad 325 presses the laser module 33 downwards, clamping and fixing of the laser module 33 are achieved quickly, and the laser module 33 does not need to be locked and fixed through bolts.
Referring to fig. 11 to 15, the laser module aging power measuring apparatus 40 includes a front heat sink 41, a rear heat sink 42, a laser collecting bar 43, a photoelectric sensor 44, a fixing block 45, and a shielding cover 46 covering the outside.
The front heat sink 41 includes a vertical substrate 411 and heat dissipation fins 412 extending forward from the substrate 411 and arranged at intervals, a gap 413 is formed between every two adjacent heat dissipation fins 412, the substrate 411 is provided with a row of front through holes 4110 penetrating forward and backward, and the front through holes 4110 are penetrated forward and backward with the gap 413. The substrate 411 is attached to the front end surface of the rear heat sink 42, and a contact surface between the substrate 411 and the rear heat sink 42 is coated with a heat conductive silicone grease, which has high thermal conductivity and excellent thermal conductivity, so that heat on the substrate 411 can be rapidly transferred to the rear heat sink 42.
The rear heat sink 42 is water-cooled, a flow channel 420 is arranged on the inner side of the rear heat sink 42, a water inlet and a water outlet communicated with the flow channel 420 are arranged on the outer surface of the rear heat sink 42, cooling water enters the flow channel 420 from the water inlet and then is discharged from the water outlet, and meanwhile heat on the rear heat sink 42 is taken away, so that the heat dissipation function of the rear heat sink 42 is realized.
The rear heat radiating body 42 is provided with a row of rear through holes 421 and positioning grooves 422 communicated with the row of rear through holes 421, rear end faces of the rear heat radiating body 42 are concavely arranged in the positioning grooves 422, the rear through holes 421 extend forwards from the positioning grooves 422 and penetrate through the rear heat radiating body 42, and the rear through holes 421 and the front through holes 4110 are communicated one by one.
The long strip-shaped that laser gather strip 43 extends about for, laser gather strip 43 front end fixed in constant head tank 422, the terminal surface is equipped with arc recess 431 and from the fixed orifices 432 of this arc recess 431 middle part backward extension before laser gather strip 43, and arc recess 431 aligns around with back through-hole 421, and fixed orifices 432 run through laser gather strip 43 backward.
The photoelectric sensor 44, which converts the optical signal into an electrical signal, is inserted forward into the fixing hole 432 of the laser collecting bar 40. The photosensor 44 has guides 443 that extend rearwardly from the collection bar 43.
The fixing block 45 is fixed on the rear end face of the laser collecting bar 43 and abuts against the photoelectric sensor 44 forwards, and the fixing block 45 is further provided with an opening 453 for the lead 443 of the photoelectric sensor 44 to penetrate out backwards.
When the laser module aging power detection device 100 works, laser emitted by the laser module 33 irradiates on the front heat radiation body 41, heat of the front heat radiation body 41 is transferred to the rear heat radiation body 42, cooling water flows through the flow channel 420 of the rear heat radiation body 42 to take away most of the heat, a small amount of laser, namely sampled laser sequentially passes through the front through hole 4110 of the front heat radiation body 41 and the rear through hole 421 of the rear heat radiation body 42 to irradiate in the arc-shaped groove 431 of the laser collection bar 43, then the sampled laser is finally concentrated on the photoelectric sensor 44 after being reflected for multiple times by the inner side wall of the arc-shaped groove 431, the photoelectric sensor 44 converts the laser into an electric signal, and sampling detection on the variation trend of the laser power of the laser module 33 is realized, so that the laser module aging power detection device 100 only uses one photoelectric sensor 44 to achieve the purpose of collecting the laser module 33 power, the structure is simple, the working principle is simple, and the economical efficiency is good.
The power supply 50 is used to supply power to the laser module aging unit 100.
The water pipe 60 has two, one is connected to the water inlet connector 314 of the water-cooling base 31 and the water-cooling machine 65, and the other is connected to the water outlet connector 315 of the water-cooling base 31 and the water-cooling machine 65. The water pipe 60 is provided with a flow meter 61 and a flow regulating valve 62, the flow meter 61 is used for detecting the flow change of water in the water pipe 60, and the flow regulating valve 62 is used for controlling and even closing water flow according to the aging test requirement.
Referring to fig. 16, the present invention further discloses a laser module aging apparatus 200, which includes a cabinet 20 and a plurality of laser module aging units 100 movably inserted into the cabinet 205, wherein the plurality of laser module aging units 100 are arranged in a matrix, occupy a small space, and operate independently among the laser module aging units 100 without mutual interference, thereby improving the working efficiency and stability and facilitating the maintenance of the laser module aging units 100.
As shown in fig. 17, the water paths of the laser module aging apparatus 200 are parallel, and include a water outlet path 651 connected to the water cooler 65, a water return path 652, a bypass 653 connected between the water outlet path 651 and the water return path 652, and a plurality of branch water paths 654, where the bypass 653 is close to the water cooler 65, the number of the branch water paths 655 is the same as that of the laser module aging units 100, one end of each branch water path 655 is connected to the water outlet path 652, and the other end is connected to the water return path 652, and passes through the flow regulating valve 62, the flow meter 61, the water cooling base 31, and the laser module 33 in sequence, so as to take away heat in the laser module 33 and cool the laser module 33.
The invention also discloses an aging method, which adopts the laser module aging unit and comprises the following steps:
s1, the laser module 33 is placed on the water-cooling base 31, the laser module 33 presses the one-way valve 313 to be switched from closed to open, and water flows in the laser module 33 and the water-cooling base 31;
s2, manually pulling the handle 33 of the rapid clamp 32 to make the pressing rod 324 move downwards and then press against the laser module 33, and the laser module 33 is clamped and fixed by the pressing rod 324 and the water-cooling base 31;
s3, irradiating the laser emitted by the laser module 33 on the front heat radiator 41, and irradiating a small amount of laser, namely sampled laser, in the arc-shaped groove 431 of the laser collecting bar 43 through the front through hole 4110 of the front heat radiator 41 and the rear through hole 421 of the rear heat radiator 42 in sequence;
s4, after the sampled laser light is reflected by the inner sidewall of the arc groove 431 for multiple times, the sampled laser light is finally focused on the photoelectric sensor 44, and the photoelectric sensor 44 converts the laser light into an electrical signal, so as to realize sampling detection of the power variation trend of the laser light of the laser module 33.
The laser module aging method has a simple working principle, and can quickly test the change trend of the laser power of the laser module 33 in real time.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.
Claims (11)
1. A laser module burn-in unit, comprising: including tray, wire holder, laser module subassembly, the ageing power measuring device of laser module, power supply ware and water pipe, the tray includes layer board, front end plate and back end plate, the front end plate is fixed in the layer board front end, the back end plate is fixed in the layer board rear end, three form a U-shaped structure jointly, the wire holder laser module subassembly laser module ageing power measuring device with the power supply ware along the fore-and-aft direction install in proper order in the layer board, water piping connection water-cooled generator with laser module subassembly.
2. The laser module burn-in unit of claim 1, wherein: be equipped with the binding clip of exempting from to weld the formula on the connection terminal, the laser instrument module is equipped with external signal line, the one end of signal line is connected the laser instrument module, the other end quilt the binding clip centre gripping is fixed, realizes the laser instrument module with connection terminal electric connection.
3. The laser module burn-in unit of claim 1, wherein: and the water pipe is provided with a flowmeter and a flow regulating valve.
4. The laser module burn-in unit of claim 1, wherein: the laser module component comprises a water-cooling base, a rapid clamp and a laser module, wherein the rapid clamp and the laser module are respectively arranged on the water-cooling base, and the rapid clamp is used for downwards abutting against the laser module on the water-cooling base.
5. The laser module burn-in unit of claim 4, wherein: the water-cooling base comprises a water-cooling plate, a bottom plate and one-way valves, the water-cooling plate is arranged on the bottom plate and comprises an upper surface, a lower surface and a plurality of side surfaces between the upper surface and the lower surface, the two opposite side surfaces are respectively connected with a water inlet connector and a water outlet connector, a water flow channel is arranged in the water-cooling plate and is communicated with the water inlet connector, the water outlet connector and the one-way valves, the one-way valves are arranged on the upper surface of the upper cooling plate, and when the laser module is placed on the upper cooling plate, the laser module presses the one-way valves to open the one-way valves, so that water flows in the laser module and the water-cooling plate.
6. The laser module burn-in unit of claim 1, wherein: the laser module aging power measuring device comprises a front radiator, a rear radiator, a laser collecting bar, a photoelectric sensor and a shielding cover covering the front radiator, the rear radiator, the laser collecting bar and the photoelectric sensor, wherein the front radiator and the rear radiator are attached to each other in a front-rear mode, the laser collecting bar is fixed at the rear end of the rear radiator, and the photoelectric sensor is fixed on the laser collecting bar.
7. The laser module burn-in unit of claim 6, wherein: the front radiator comprises a substrate and radiating fins extending forwards from the substrate and arranged at intervals, a gap is formed between every two adjacent radiating fins, a row of front through holes penetrating through the substrate are formed in the front and the back of the substrate, the front through holes are communicated with the gap in the front and the back, the rear radiator is provided with rear through holes communicated with the front through holes one by one, the laser collecting strip is provided with an arc-shaped groove for shielding the rear through holes, and laser is concentrated on the photoelectric sensor after being reflected for multiple times by the inner side wall of the arc-shaped groove.
8. The laser module burn-in unit of claim 6, wherein: the laser module aging power measuring device further comprises a fixing block fixed on the rear end face of the laser collecting strip, the fixing block is abutted against the photoelectric sensor forwards, and the fixing block is further provided with a hole for the lead of the photoelectric sensor to penetrate out backwards.
9. A laser module aging apparatus, characterized in that: the laser module aging unit comprises a cabinet and the laser module aging unit as claimed in one of claims 1 to 8, wherein a plurality of the laser module aging units are arranged in a matrix and are movably inserted into the cabinet.
10. A method of aging, comprising the steps of:
s1, placing the laser module on a water-cooling base;
s2, manually pulling a handle of a quick clamp to enable the quick clamp and the water-cooling base to clamp and fix the laser module;
s3, irradiating laser emitted by a laser module on a front heat radiation body, sequentially penetrating a front through hole of the front heat radiation body and a rear through hole of a rear heat radiation body to irradiate the arc-shaped groove of a laser collecting strip, wherein the front heat radiation body is positioned behind the rear heat radiation body, and the front heat radiation hole and the rear heat radiation hole are aligned front and back; and
and S4, after being reflected for multiple times by the inner side wall of the arc-shaped groove, the small amount of laser is finally concentrated on a photoelectric sensor, and the photoelectric sensor converts the laser into an electric signal to realize the sampling detection of the power change trend of the laser module.
11. The aging method according to claim 10, characterized in that: and in the step S1, the laser module is pressed against the one-way valve and switched from closed to open, so that water flows in the laser module and the water-cooling base, and the one-way valve is arranged on the water-cooling base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111065134.8A CN113686554B (en) | 2021-09-11 | Laser module aging unit, aging device and aging method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111065134.8A CN113686554B (en) | 2021-09-11 | Laser module aging unit, aging device and aging method thereof |
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| Publication Number | Publication Date |
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| CN113686554A true CN113686554A (en) | 2021-11-23 |
| CN113686554B CN113686554B (en) | 2024-05-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113916501A (en) * | 2021-12-14 | 2022-01-11 | 武汉锐科光纤激光技术股份有限公司 | Laser copying device and test method |
| CN116625643A (en) * | 2023-05-26 | 2023-08-22 | 长沙航空职业技术学院(空军航空维修技术学院) | High-power pump source testing equipment and testing method |
| CN116659818A (en) * | 2023-05-26 | 2023-08-29 | 长沙航空职业技术学院(空军航空维修技术学院) | High-power laser aging test equipment |
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| JP2006226876A (en) * | 2005-02-18 | 2006-08-31 | Matsushita Electric Ind Co Ltd | Burn-in apparatus for semiconductor laser device |
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| CN116659818A (en) * | 2023-05-26 | 2023-08-29 | 长沙航空职业技术学院(空军航空维修技术学院) | High-power laser aging test equipment |
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