CN101515701B

CN101515701B - Wavelength filtering device of semiconductor laser

Info

Publication number: CN101515701B
Application number: CN2009100667635A
Authority: CN
Inventors: 王立军; 刘云; 刘长军; 秦丽; 宁永强
Original assignee: Changchun Institute of Optics Fine Mechanics and Physics of CAS
Current assignee: Jiguang Semiconductor Technology Co ltd
Priority date: 2009-04-07
Filing date: 2009-04-07
Publication date: 2011-05-18
Anticipated expiration: 2029-04-07
Also published as: CN101515701A

Abstract

A wavelength filtering device of a semiconductor laser belongs to the technical field of semiconductor optic electronics, and comprises a pillar, a seat, a slip tube, an inner slip tube, a regulating cap, a first nut, a cantilever girder, a second nut, a guide tube, a measuring head and a measuring bench, wherein the pillar is fixed on the seat, one end of the pillar is connected with the seat in thread, the slip tube is fixedly connected with the seat, the slip tube and the inner slip tube are fixedly connected by a screw, the inner slip tube is connected with the first nut in thread, the regulating cap is connected with the first nut in thread, the cantilever girder is contacted with the first nut and the inner slip tube in a contacting way, the second nut is connected with the guide tube in thread, the measuring head is connected with the guide tube elastically, and the measuring bench is fixedly connected with the seat by a screw. The invention has the following beneficial effects: the process is simple and practical, the operation is convenient, bar test of pulse or different wavelengths with low duty cycle can be finished, the disadvantage that the wavelength can only be selected after encapsulation is resolved, the rate of finished products and productivity are enhanced, the requirement of customers on the wavelength and half-linear width index is satisfied, and the cost is greatly lowered.

Description

Wavelength filtering device of semiconductor laser

Technical field

The invention belongs to the Semiconductor Optic Electronics technical field, relate to a kind of wavelength filtering device of semiconductor laser.

Background technology

The application prospect and the enormous and latent market of high-power semiconductor laser linear array, folded battle array become the focus that competitively chase various countries, the subject matter that current high-power semiconductor laser linear array and folded battle array are faced is its low ratio of performance to price, it is the performance low (power, efficient, consistent wavelength, reliability and stability etc.) of laser linear array, folded battle array, and cost of manufacture (being price) is very high, and this has limited its application in practice to a great extent.In addition, most of user is very harsh to laser linear array and the requirement of folded battle array consistent wavelength, require the wavelength must not deviation ± 2nm as three bar linear arrays, the folded battle array of 11 bar linear arrays and 20 layers requires the wavelength must not deviation ± 3nm, the requirement of these indexs and the screening technology of wavelength has and confidential relation.

The screening of present domestic semiconductor laser linear array, folded battle array bar bar is generally adopted the bar bar is encapsulated in the screening of finishing wavelength on the radiator again.The submodule that welding is good is placed on the anchor clamps that connect both positive and negative polarity, records the wavelength of each bar bar by comprehensive parameter tester or spectrometer, and the submodule of selecting identical wavelength again encapsulates.Cause unnecessary encapsulation thus, thereby cause the efficient of packaging technology low, cost is high, causes unnecessary loss.The semiconductor laser linear array of therefore will obtain that half-linear width is narrower, stable, reliability, power output, cost performance are higher or folded gust just must encapsulate preceding screening to bar bar wavelength.

Summary of the invention

The purpose of this invention is to provide a kind of wavelength filtering device of semiconductor laser, can finish the bar bar test of the different wave length of pulse or low duty ratio, can before encapsulation, screen, improved rate of finished products and production efficiency wavelength.

In order to achieve the above object, technical scheme of the present invention is as follows:

Wavelength filtering device of semiconductor laser, comprise pillar, seat board, slip pipe, inner sliding pipe, regulate cap, first nut, cantilever beam, second nut, guide pipe, gauge head and scaffold tower, pillar is fixed on the seat board, one end of pillar is threaded with seat board, slip pipe is fixedlyed connected with seat board, slip pipe is fixedlyed connected by screw with inner sliding pipe, inner sliding pipe is connected with first nut thread, regulating cap is connected with first nut thread, the cantilever beam and first nut, the inner sliding pipe contact connects, second nut and guide pipe are threaded, and gauge head is connected with guide pipe elasticity, and scaffold tower is fixedlyed connected by screw with seat board.

The invention has the beneficial effects as follows: features simple and practical process, behaviour does easy; The contact of employing line, belong to the line contact, can finish the crust bar test of the different wave length of pulse or low duty ratio, solved the disadvantage that just can select wavelength after the encapsulation, rate of finished products and production efficiency have been improved, satisfied the requirement of user, effectively reduced cost of manufacture, be applicable to the bar bar screening of the different wave length of pulse or low duty ratio wavelength and half-linear width index.

Description of drawings

Fig. 1 is the structural representation of wavelength filtering device of semiconductor laser of the present invention.

Among the figure: 1, pillar, 2, seat board, 3, slip pipe, 4, inner sliding pipe, 5, regulate cap, 6, first nut, 7, cantilever beam, 8, second nut, 9, guide pipe, 10, gauge head, 11, scaffold tower.

Embodiment

Below in conjunction with accompanying drawing the present invention is done description in further detail:

As shown in Figure 1, wavelength filtering device of semiconductor laser of the present invention comprises pillar 1, seat board 2, slip pipe 3, inner sliding pipe 4, regulate cap 5, first nut 6, cantilever beam 7, second nut 8, guide pipe 9, gauge head 10 and scaffold tower 11, pillar 1 is fixed on the seat board 2, one end of pillar 1 is threaded with seat board 2, slip pipe 3 is fixedlyed connected with seat board 2, slip pipe 3 and inner sliding pipe 4 are fixedlyed connected by screw, inner sliding pipe 4 is threaded with first nut 6, regulating cap 5 is threaded with first nut 6, the cantilever beam 7 and first nut 6, inner sliding pipe 4 contacts connect, second nut 8 and guide pipe 9 are threaded, gauge head 10 is connected with guide pipe 9 elasticity, and scaffold tower 11 and seat board 2 are fixedlyed connected by screw.Pillar 1 adopts stainless steel material, seat board 2 adopts polytetrafluoroethylmaterial material, slip pipe 3, inner sliding pipe 4, adjusting cap 5, first nut 6 all adopt copper or other metal materials to make, cantilever beam 7, gauge head 10 adopt manganese steel to make, second nut 8, guide pipe 9 adopt oxygen-free copper or other metal materials to make, and scaffold tower 11 adopts gold-plated oxygen-free copper to make.

Wavelength filtering device of semiconductor laser of the present invention can be finished the wavelength screening before the encapsulation of bar bar, immediate the combining of bar bar medium wavelength can have been improved rate of finished products and production efficiency widely.

During use, wavelength filtering device of semiconductor laser of the present invention need be fixed on magnetic force takes, the both positive and negative polarity of device is with after the both positive and negative polarity of comprehensive parameter tester is connected, regulating cap 5 rotations makes gauge head 10 lift to the appropriate location, bar bar N face is picked up and is placed on the edge of scaffold tower 11 with suction spindle, rotation is regulated cap 5 and is reduced gauge head 10 to bar bar N faces, and the P face of bar bar is well contacted with scaffold tower 11, opens the accurate wavelength that comprehensive parameter tester promptly records the bar bar.Specific operation process is as follows:

1) the pillar 1 firm magnetic force that is fixed on of Wavelength filtering device is taken;

2) both positive and negative polarity with Wavelength filtering device is connected with the both positive and negative polarity of comprehensive parameter tester;

3) will regulate cap 5 and turn clockwise, make gauge head 10 lift to the appropriate location after, stop to regulate the rotation of cap 5;

4) with suction spindle bar bar p is faced down and be placed on the edge of scaffold tower 11, will regulate cap 5 again and be rotated counterclockwise the N face of reducing to the bar bar, gauge head 10 is well contacted with the N face of bar bar, stop to regulate the rotation of cap 5;

5) open the comprehensive parameter tester master switch, parameters such as the electric current of setting bar bar, voltage, room temperature record the accurate wavelength of bar bar.

The present invention can be applied to the wavelength screening of the different packing forms of semiconductor laser bar bar, change the crust bar at 11 edges of the scaffold tower in the aforesaid operations process into the bottom electrode packaged heat sink positive pole of doing, gauge head 10 is a negative pole, also can record the wavelength that only welds one of them electrode bar bar.

Claims

1. wavelength filtering device of semiconductor laser, it is characterized in that, this device comprises pillar (1), seat board (2), slip pipe (3), inner sliding pipe (4), regulate cap (5), first nut (6), cantilever beam (7), second nut (8), guide pipe (9), gauge head (10) and scaffold tower (11), pillar (1) is fixed on the seat board (2), one end of pillar (1) is threaded with seat board (2), slip pipe (3) is fixedlyed connected with seat board (2), slip pipe (3) is fixedlyed connected by screw with inner sliding pipe (4), inner sliding pipe (4) is threaded with first nut (6), regulating cap (5) is threaded with first nut (6), cantilever beam (7) and first nut (6), inner sliding pipe (4) contact connects, second nut (8) and guide pipe (9) are threaded, gauge head (10) is connected with guide pipe (9) elasticity, and scaffold tower (11) is fixedlyed connected by screw with seat board (2).