CN113561097A - 780nm distributed feedback Bragg semiconductor laser cavity surface coating clamp - Google Patents
780nm distributed feedback Bragg semiconductor laser cavity surface coating clamp Download PDFInfo
- Publication number
- CN113561097A CN113561097A CN202110964337.4A CN202110964337A CN113561097A CN 113561097 A CN113561097 A CN 113561097A CN 202110964337 A CN202110964337 A CN 202110964337A CN 113561097 A CN113561097 A CN 113561097A
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- hole
- distributed feedback
- semiconductor laser
- plate
- feedback bragg
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Semiconductor Lasers (AREA)
Abstract
The invention discloses a 780nm distributed feedback Bragg semiconductor laser cavity surface coating clamp which comprises a supporting plate 1, a spring plate 4 and a fixing plate 6. The supporting plate 1 comprises a first through hole 2 and a second through hole 3; the lower end of the spring plate 4 is provided with a spring leaf 5; the fixing plate 6 includes: a third through hole 7, a fourth through hole 8, a first internally threaded hole 9 and a second internally threaded hole 10. Firstly, fixing a fixing plate 6 and a supporting plate 1 together by screws and nuts through matching of a first through hole and a third through hole, and matching of a second through hole and a 4 th through hole in pairs; stacking chips bar which are separated by 780nm distributed feedback Bragg semiconductor lasers on the supporting plate 1; after chip bar strips dissociated by the 780nm distributed feedback Bragg semiconductor laser are stacked, the spring plate 4 is inserted into a slideway between the fixing plate 6 and the supporting plate 1; and finally fixing 780nm distributed feedback Bragg semiconductor laser chip bar bars through the first internal thread hole 9 and the second internal thread hole 10, and preparing film coating after clamping.
Description
Technical Field
The invention relates to the technical field of semiconductor laser, in particular to a 780nm distributed feedback Bragg semiconductor laser cavity surface coating clamp.
Background
The distributed feedback semiconductor laser has wide application in the fields of optical communication systems, laser radars, sensing and the like. The 780nm tunable distributed feedback semiconductor laser is mainly used as a light source for pumping Rb D2 energy level transition and is widely used for Rb atomic clocks, magnetometers, precision gyroscopes, gas sensing and local area network communication. Research and application of local area network communication is now a growing market, and thus there is an increasing demand for 780nm distributed feedback bragg semiconductor lasers. However, key factors for restricting 780nm distributed feedback Bragg semiconductor laser include the clamping problem of a laser cavity surface coating clamp. The method has the advantages of convenient and rapid clamping, no cavity surface contact pollution and double-sided coating, and is the most key point for realizing high power and high efficiency of the 780nm distributed feedback Bragg semiconductor laser. The invention provides a convenient and rapid coating clamp for a cavity surface of a 780nm distributed feedback Bragg semiconductor laser, which has no contact pollution on the cavity surface.
Disclosure of Invention
The invention aims to provide a 780nm distributed feedback Bragg semiconductor laser cavity surface coating clamp.
A780 nm distributed feedback Bragg semiconductor laser cavity surface coating clamp comprises a supporting plate 1, a spring plate 4 and a fixing plate 6. The supporting plate 1 comprises a first through hole 2 and a second through hole 3; the lower end of the spring plate 4 is provided with a spring leaf 5; the fixing plate 6 includes: a third through hole 7, a fourth through hole 8, a first internally threaded hole 9 and a second internally threaded hole 10.
The method is characterized in that:
firstly, fixing a fixing plate 6 and a supporting plate 1 together by screws and nuts through matching of a first through hole and a third through hole, and matching of a second through hole and a 4 th through hole in pairs; stacking chips bar which are separated by 780nm distributed feedback Bragg semiconductor lasers on the supporting plate 1; after chips bar strips dissociated by the 780nm distributed feedback Bragg semiconductor laser are stacked, the spring plate 4 is inserted into a slideway between the fixed plate 6 and the supporting plate 1, a little elastic force is ensured when the spring piece 5 is clamped, no gap between the bar strips is ensured, and the bar strips are prevented from falling off when the film is coated in a turnover mode; and finally fixing bar bars of the 780nm distributed feedback Bragg semiconductor laser chip through the first internal thread hole 9 and the second internal thread hole 10. The non-shielding area in the middle of the clamp is a bar cavity surface coating area of a 780nm distributed feedback Bragg semiconductor laser chip, only two ends of a cavity surface of the bar of the 780nm distributed feedback Bragg semiconductor laser chip are in contact with each other in the clamping process, other parts do not contact with any object, cavity surface pollution cannot be caused, the clamp is convenient and quick to clamp, the bar cavity surface coating of the 780nm distributed feedback Bragg semiconductor laser chip can be realized simultaneously, secondary clamping is not needed, and time and labor are saved.
Drawings
FIG. 1 is a diagram of a fixture according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail below with reference to fig. 1 for a 780nm distributed feedback bragg semiconductor laser chip bar with a cavity length of 1mm, a bar length of 16mm and a bar thickness of 130um, but the use of the clamp is not limited to this embodiment: the supporting plate 1, the spring plate 4 and the fixing plate 6. The supporting plate 1 comprises a first through hole 2 and a second through hole 3; the lower end of the spring plate 4 is provided with a spring leaf 5; the fixing plate 6 includes: a third through hole 7, a fourth through hole 8, a first internally threaded hole 9 and a second internally threaded hole 10.
To 780nm distribution feedback Bragg semiconductor laser chip bar that the chamber length is 1mm, bar length is 16mm and bar thickness is 130um, require that the thickness of spring plate 4 is 1mm, the width of spring plate 4 is 16mm, after the length of spring plate 4 can guarantee to have installed and clamped chip bar, first internal thread hole 9 and second internal thread hole 10 can be fixed well the bar can. The dimensions of the carrier plate 1 and the fixing plate 6 may be determined according to the dimensions of the spring plate 4. The clamp can clamp cavity surface coating on 780nm distribution feedback Bragg semiconductor laser chip bars with different cavity lengths and different bar lengths by changing the thickness of the spring plate 4 and the width of the spring plate 4. The number of bar bars for clamping 780nm distributed feedback Bragg semiconductor laser chips is determined by changing the length of the spring plate 4.
Firstly, fixing a fixing plate 6 and a supporting plate 1 together by screws and nuts through matching of a first through hole and a third through hole, and matching of a second through hole and a 4 th through hole in pairs; stacking 780nm distributed feedback Bragg semiconductor laser chip bars with the cavity length of 1mm, the bar length of 16mm and the bar thickness of 130um on the supporting plate 1, wherein the stacking number is 10; after chips bar strips which are dissociated by the 780nm distributed feedback Bragg semiconductor laser are stacked, the spring plate 4 is inserted into a slideway between the fixed plate 6 and the supporting plate 1, little elasticity is ensured when the spring plate 5 is clamped, and no gap is ensured between the bar strips; and finally fixing 780nm distributed feedback Bragg semiconductor laser chip bar bars through the first internal thread hole 9 and the second internal thread hole 10, and waiting for coating after clamping is finished.
Claims (1)
1. A780 nm distributed feedback Bragg semiconductor laser cavity surface coating clamp is characterized by comprising: the supporting plate 1, the spring plate 4 and the fixing plate 6; the supporting plate 1 comprises a first through hole 2 and a second through hole 3; the lower end of the spring plate 4 is provided with a spring leaf 5; the fixing plate 6 includes: a third through hole 7, a fourth through hole 8, a first internally threaded hole 9 and a second internally threaded hole 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110964337.4A CN113561097A (en) | 2021-08-22 | 2021-08-22 | 780nm distributed feedback Bragg semiconductor laser cavity surface coating clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110964337.4A CN113561097A (en) | 2021-08-22 | 2021-08-22 | 780nm distributed feedback Bragg semiconductor laser cavity surface coating clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113561097A true CN113561097A (en) | 2021-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110964337.4A Pending CN113561097A (en) | 2021-08-22 | 2021-08-22 | 780nm distributed feedback Bragg semiconductor laser cavity surface coating clamp |
Country Status (1)
| Country | Link |
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| CN (1) | CN113561097A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111501042A (en) * | 2020-06-02 | 2020-08-07 | 海南师范大学 | Edge-emitting semiconductor laser chip cavity surface coating clamp |
-
2021
- 2021-08-22 CN CN202110964337.4A patent/CN113561097A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111501042A (en) * | 2020-06-02 | 2020-08-07 | 海南师范大学 | Edge-emitting semiconductor laser chip cavity surface coating clamp |
| CN111501042B (en) * | 2020-06-02 | 2023-09-01 | 海南师范大学 | Edge-emitting semiconductor laser chip cavity surface coating clamp |
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