A coating fixture for clamping semiconductor laser bars of different lengths and cavity lengths

Abstract

The present invention discloses a coating fixture for clamping semiconductor laser bar bars of different lengths and different cavity lengths, comprising: a step slide plate 1, a step plate 2, a step slide 3, and a plurality of clamping bars 4; the step slide plate 1 comprises: positioning holes 1‑1, 1‑2, 1‑3 and 1‑4, a step slide 3 and a coating area exposed in the middle; the step plate 2 comprises: positioning holes 2‑1, 2‑2, 2‑3 and 2‑4, and a coating area exposed in the middle; the step slide 3 comprises: ten pairs of step slides symmetrical in twos with the same size; the plurality of clamping bars 4 are rectangular parallelepipeds with a length equal to the bar length, a width of 1 mm and a height equal to the bar cavity length, and each bar requires two clamping bars to clamp. The "semiconductor laser bar bars of different lengths and different cavity lengths" clamped by two matching clamping bars are clamped in the step slide 3. After clamping, fix it by positioning hole 1-1 and positioning hole 2-1, positioning hole 1-2 and positioning hole 2-2, positioning hole 1-3 and positioning hole 2-3, positioning hole 1-4 and positioning hole 2-4, and the clamping is completed for coating.

Description

Technical Field

[0001] The invention relates to the field of semiconductor laser technology, and in particular to a coating fixture for clamping semiconductor laser bars with different lengths and different cavity lengths. Background Art

[0002] Semiconductor lasers are widely used in the fields of pumping solid-state lasers, laser communications, laser processing, laser medical treatment and military due to their advantages of high power, light weight, small size and easy modulation. With the continuous improvement of the output power of semiconductor lasers, they can be directly applied to fields such as material processing, laser medical treatment and military. However, one of the most important factors restricting the semiconductor laser manufacturing process is the problem of semiconductor laser bar coating clamping. Convenient and fast clamping, no cavity surface contact pollution and double-sided coating are the key to achieving semiconductor laser preparation and high efficiency. In view of the current reports that all clamps are for clamping bar bars of the same cavity length or the same length, the present invention proposes a coating clamp that can clamp multiple semiconductor laser bar bars of different lengths and cavities. The clamping is convenient, there is no contact pollution, and double-sided coating is possible. Summary of the invention

[0003] The purpose of the present invention is to provide a coating fixture for clamping semiconductor laser bars with different lengths and different cavity lengths.

[0004] A coating fixture for clamping semiconductor laser bars of different lengths and different cavity lengths comprises a step slide plate 1, a step plate 2, a step slide 3, and a plurality of clamping bars 4.

[0005] Features:

[0006] The step slide plate 1 comprises: a positioning hole 1-1, a positioning hole 1-2, a positioning hole 1-3, a positioning hole 1-4 and a step slide 3, and an exposed coating area in the middle.

[0007] The step plate 2 includes: positioning hole 2-1, positioning 2-2, positioning 2-3, positioning 2-4, and the exposed coating area in the middle. The exposed size is the same as the size of the part without the slideway of the step slideway plate. When they are fixed together, the slideway forms a complete card slot to ensure that the semiconductor laser bar is in the same coating position when flipping the coating, preventing the different positions from affecting the uniformity of the film.

[0008] The step slide 3 includes: ten pairs of symmetrical step slides of the same size. One end of the step slide is flush with the surface of the step slide plate, and the other end of the step slide is at a certain distance from the other surface. The semiconductor laser bar is just clamped to this end when clamping, so that the coating cavity surfaces of all bar strips are at the same coating position. The number of slides is not limited to ten pairs, and can be more or less.

[0009] The plurality of clamping bars 4 are rectangular parallelepipeds with a length equal to the length of the bar bar, a width of 1 mm, and a height equal to the length of the bar bar cavity. Each bar bar requires two clamping bars. The plurality of clamping bars 4 are used to prevent tools such as tweezers from directly touching the cavity surface to prevent contamination of the cavity surface, and to prevent diffraction of the film material during coating to prevent the film material from contaminating the positive and negative electrodes.

[0010] The "semiconductor laser bars of different lengths and different cavity lengths" are clamped by two matching clamping bars in the step slide 2 on the step slide plate 1. The maximum cavity length of the clamped bar should not exceed the length of the step slide. After clamping, fix it by positioning holes 1-1 and 2-1, positioning holes 1-2 and 2-2, positioning holes 1-3 and 2-3, and positioning holes 1-4 and 2-4. The clamping is completed.

[0011] The exposed area in the middle of the fixture is the semiconductor laser bar cavity surface coating area. After one surface coating is completed, the fixture can be flipped through the flipping mechanism. Since both ends of the semiconductor laser bar are in the corresponding step slide, it slides to the other end of the step slide by gravity when flipping, and can remain in the same position at the same time, which can prevent the uniformity of the film from being affected by different positions. During the clamping process of this fixture, the bar cavity surface coating area does not contact anything, there is no cavity surface pollution, and the clamping is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a clamp diagram of a specific embodiment of the present invention.

[0013] Figure 2 This is a schematic diagram of two clamping bars clamping a bar, where the black color represents the semiconductor laser bar. DETAILED DESCRIPTION

[0014] Combine the following Figure 1 and Figure 2The present invention is further described in detail for the clamping of semiconductor laser bars of ten different lengths and different cavity lengths, all of which have a thickness of 150µm and lengths and cavity lengths of 12mm and 1mm, 14mm and 2mm, 16mm and 2.5mm, 18mm and 3mm, 20mm and 3.5mm, 22mm and 4mm, 24mm and 4.5mm, 26mm and 5mm, 28mm and 5.5mm, and 30mm and 6mm, but the use of the fixture is not limited to this embodiment: a step slide plate 1, a step plate 2, a step slide 3, and a plurality of clamping strips 4; the step slide plate 1 includes: a positioning hole 1-1, a positioning hole 1-2, a positioning hole 1-3, a positioning hole 1-4 and a step slide 3, as well as an exposed coating area in the middle; the step plate 2 includes: a positioning hole 2-1, a positioning hole 2-2, a positioning hole 2-3, a positioning hole 2-4, and an exposed coating area in the middle; the step slide 3 includes: ten pairs of step slides with the same size that are symmetrical in pairs; and a plurality of clamping strips 4.

[0015] For semiconductor laser bars with a thickness of 150µm and lengths and cavity lengths of 12mm and 1mm, 14mm and 2mm, 16mm and 2.5mm, 18mm and 3mm, 20mm and 3.5mm, 22mm and 4mm, 24mm and 4.5mm, 26mm and 5mm, 28mm and 5.5mm, and 30mm and 6mm, the distance between the two symmetrical steps in the exposed area of ​​the step slide plate 1 and the step plate 2 is required to be 10m respectively. m, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm and 28mm, the thickness of each step is 1mm different, the length of the step is 6.45mm, and the depth of the step slide on the corresponding step slide plate 1 is 1mm. This 1mm is to ensure that both ends of the semiconductor laser bar are placed in the slide to ensure the uniformity of the coating. The length of the slide is 6mm and the width of the slide is 2.15mm, so the thickness of the clamping bar can be 1mm. Two clamping bars and a bar bar are clamped together, such as Figure 2As shown, the total thickness is just the width of the slideway. There are ten pairs of clamping strips 4, and the dimensions of each pair are as follows: length 12 mm, width 1 mm, thickness 1 mm; length 14 mm, width 2 mm, thickness 1 mm; length 16 mm, width 2.5 mm, thickness 1 mm; length 18 mm, width 3 mm, thickness 1 mm; length 20 mm, width 3.5 mm, thickness 1 mm; length 22 mm, width 4 mm, thickness 1 mm; length 24 mm, width 4.5 mm, thickness 1 mm; length 26 mm, width 5 mm, thickness 1 mm; length 28 mm, width 5.5 mm, thickness 1 mm; length 30 mm, width 6 mm, thickness 1 mm. The length of the slideway plate 1 is 100 mm, the width is 60 mm, and the thickness is 11 mm. The length of the fixed plate is 100 mm, the width is 60 mm, and the thickness is 5 mm.

[0016] Firstly, ten pairs of step slides 3 on the step slide plate 1 are respectively clamped with "two matching clamping strips" to clamp "ten semiconductor laser bars with different lengths and different cavity lengths, namely, length 12 mm, width 1 mm, thickness 1 mm; length 14 mm, width 2 mm, thickness 1 mm; length 16 mm, width 2.5 mm, thickness 1 mm; length 18 mm, width 3 mm, thickness 1 mm; length 20 mm, width 3.5 mm, thickness 1 mm; length 22 mm, width 4 mm, thickness 1 mm; length 24 mm, width 4.5 mm, thickness 1 mm; length 26 mm, width 5 mm, thickness 1 mm; length 28 mm, width 5.5 mm, thickness 1 mm; length 30 mm, width 6 mm, thickness 1 mm". After clamping, it is fixed by positioning hole 1-1 and positioning hole 2-1, positioning hole 1-2 and positioning hole 2-2, positioning hole 1-3 and positioning hole 2-3, positioning hole 1-4 and positioning hole 2-4, and the clamping is completed for coating.

Claims

1. A fixture for clamping semiconductor laser bar coating with different lengths and cavity lengths, characterized in that: include: A step slide plate (1), a step plate (2), a step slide (3), and a plurality of clamping strips (4); the step slide plate (1) comprises: a first positioning hole (1-1), a second positioning hole (1-2), a third positioning hole (1-3), a fourth positioning hole (1-4), and the step slide (3), as well as an exposed coating area in the middle; the step plate (2) comprises: a fifth positioning hole (2-1) coaxially arranged with the first positioning hole (1-1), a sixth positioning hole (2-2) coaxially arranged with the second positioning hole (1-2), a seventh positioning hole (2-3) coaxially arranged with the third positioning hole (1-3), and a seventh positioning hole (2-4) coaxially arranged with the fourth positioning hole (1-4). Eight positioning holes (2-4) and an exposed coating area in the middle; the step slide (3) comprises: ten pairs of symmetrical step slides of the same size; a plurality of clamping bars (4) are rectangular parallelepipeds with a length equal to the length of the bar bar, a width of 1 mm and a height equal to the length of the bar bar cavity; one end of the step slide (3) is flush with the surface of the step slide plate (1), and the other end of the step slide (3) is a certain distance away from the other surface; the bar bar is clamped between the two clamping bars (4); the coating area on the step slide plate (1) is arranged corresponding to the coating area on the step plate (2), and the step slide (3) is arranged on opposite sides of the coating area on the step slide plate (1).

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