Fast adjustment and alignment of laser optical path by using visible light source and lattice

The character and alignment demand of laser optical path were analyzed, and a method of fast adjustment and alignment of optical path by using visible light source and glass grid was given. The adjustment process and the problem in operating wereexampled by Pre-amplifier diagnostic module of prototype facility, and the adjustment and alignment error was calculated and checked by using a collimeter. Result shows the lens axle alignment error is less than 0.07 mm in radius and less than 25″ in direction.