Large aperture interferometer with phase-conjugate self-reference beam
Abstract
A large aperture self-referencing interferometer consisting of a Twyman-Green interferometer using a self-pumped phase conjugator in series with test section optics is described and experimentally demonstrated. This interferometer provides twice the fringe shift of a Mach-Zehnder (M-Z) interferometer for a given optical phase change induced within the test section. It also provides greater irradiance in the reference beam than does a similar series setup utilizing a M-Z interferometer incorporating a local reference beam. Whereas the ordinary interferometer records instantaneous conditions, the new one records overage conditions if a BaTiO3 crystal is used as the phase conjugator.
- Publication:
-
Applied Optics
- Pub Date:
- September 1986
- DOI:
- 10.1364/AO.25.003167
- Bibcode:
- 1986ApOpt..25.3167H
- Keywords:
-
- Barium Titanates;
- Crystal Optics;
- Interferometers;
- Phase Conjugation;
- Air Jets;
- Argon Lasers;
- Diffraction Patterns;
- Optical Pumping;
- Supersonic Jet Flow;
- Instrumentation and Photography;
- INTERFEROMETERS;
- PHASE CONJUGATION