Laser beam divergence utilizing a lateral shearing interferometer
Abstract
The wedged (Murty-type) lateral shearing interferometer is useful for measuring laser-beam wavefront curvature and for inferring beam divergence. The present work is an examination of the Murty-type interferometer as it is used to determine laser beam collimation properties. The results allow one to determine the local radius of curvature of the wavefront and to study phase distortion in the beam.
- Publication:
-
Applied Optics
- Pub Date:
- October 1977
- DOI:
- 10.1364/AO.16.002753
- Bibcode:
- 1977ApOpt..16.2753R
- Keywords:
-
- Collimation;
- Interferometers;
- Laser Beams;
- Signal Distortion;
- Wave Front Deformation;
- Curvature;
- Divergence;
- Mirrors;
- Optical Measuring Instruments;
- Phase Shift;
- Solid State Lasers;
- Lasers and Masers;
- BEAMS;
- INTERFEROMETRY