Method for regulating high power laser apparatus light path alignment
A laser device and optical path collimation technology, applied in optics, optical components, instruments, etc., can solve the problems of inconvenient spatial filter arrangement, increase the length of the main optical path, etc., and achieve the effects of easy adjustment, simple equipment and high precision
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[0017] The present invention will be further described below in conjunction with the embodiments and drawings.
[0018] See figure 2 , figure 2 A schematic diagram of the far-field detection optical path of the present invention. The method for adjusting the optical path collimation of a high-power laser device of the present invention includes the following steps:
[0019] ① A transmission grating 8 is attached to the small orifice plate behind the small orifice plate of the spatial filter 3, and the size of the transmission grating 8 is larger than the small hole 4 of the spatial filter 3;
[0020] ②Start the laser light source, insert a negative lens 9 in the main optical path between the second mirror 2 and the spatial filter 3 to fill the small hole 4 with the laser beam; pass the outline of the small hole 4 through the transmission grating 8 After diffraction, the image is imaged on the far-field detector 7 by the imaging lens 6, and then the center position of the small hol...
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