Setup for measuring CuBr laser beam parameters

The quality of precise machining with a CuBr laser ((lambda) equals 510.6 nm, (lambda) equals 578.2 nm, power up to 120 W) depends on the laser beam quality determined by the laser beam divergence and intensity distribution in the cross section of the laser beam. The set-up presented in this report makes monitoring the laser beam intensity distribution (the laser beam profile) in the real time and recording it as a bitmap or binary files possible. Using this set-up the laser beam divergence and spot size of the focused laser beam can be also determined.