Improvement of phase-conjugate beam fidelity in degenerate four-wave mixing by focused probe fields
Abstract
It is shown that signal-beam fidelity in degenerate four-wave mixing, which is affected by the finite beam widths of the pump beams, may be largely restored over a wide range of spatial frequencies. The technique consists of focusing the probe beam into the mixing cell. This permits restoration of up to about 90 percent of the principal distortion effect.
- Publication:
-
Optics Letters
- Pub Date:
- April 1983
- DOI:
- 10.1364/OL.8.000202
- Bibcode:
- 1983OptL....8..202B
- Keywords:
-
- Laser Outputs;
- Light Beams;
- Phase Conjugation;
- Signal Distortion;
- Signal Mixing;
- Spatial Filtering;
- Adaptive Optics;
- Focusing;
- Laser Pumping;
- Optical Correction Procedure;
- Wave Front Deformation;
- Wave Interaction;
- Lasers and Masers