The wavefront analysis of NBUR Nd:YAG laser output beam using a Mach-Zehnder interferometer

초록

We have constructed and tested an imaging unstable ring resonator of Newtonian telescope type with an infinite Fresnel number for Nd:YAG laser oscillator. The wavefronts characteristics is analyzed based on the fringe patterns from Mach-Zehnder interferometer. We observe the approximately uniform intensity profile and wavefront phase over the transverse plane.