Sawtooth diaphragm and its application and its debugging method for optical path
A sawtooth and diaphragm technology, applied in the field of optics, can solve the problems of difficult to observe the dividing point, small repetition frequency laser, low debugging efficiency, etc., and achieve the effect of easy observation and measurement and optical path adjustment, saving time, and high debugging efficiency.
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Embodiment 1
[0044] Such as figure 1 and figure 2 As shown, a sawtooth diaphragm has a circular sawtooth structure 1, a first circular sawtooth structure 2 and a second circular sawtooth structure 3 sequentially etched on the optical plane from the inside to the outside, and the circular sawtooth structure 1 is located at the center of the optical plane. center, and the first annular sawtooth structure 2 and the second annular sawtooth structure 3 take the center of the optical plane as the center, the surrounding area of the circular sawtooth structure 1, the first annular sawtooth structure 2 and the second annular sawtooth structure 3 The surrounding areas of are all light-transmitting areas, and all areas in the optical plane except the light-transmitting areas are light-opaque areas 4 . Preferably, the light-transmitting area is coated with an anti-reflection film to improve the light-transmitting effect, and the opaque area 4 is coated with a gold film to increase the laser damag...
Embodiment 2
[0056] The same part of this embodiment and Embodiment 1 will not be described again, the difference is:
[0057] Such as Figure 1 to Figure 3 As shown, the circumference of the circular sawtooth structure 1 is 26 times the width of the sawtooth, and the overall magnification of the laser device is 8.48 times. Processing technology, the diameter of the circular sawtooth structure 1 is 1.6 mm.
[0058] The first annular sawtooth structure 2, the second annular sawtooth structure 3, and the standard aperture 7 are all 12-order super-Gaussian distributions, and the softening factor is about 7.3%. The side length of the second annular sawtooth structure 3 and the standard aperture 7 is 48mm, and the side length of the first annular sawtooth structure 2 is 43mm. In order to make the convolution effect in the y direction significantly smaller than that in the x direction, the sawtooth width w of the circular sawtooth structure 1 , the first circular sawtooth structure 2 , and the...
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