Mutual coherence of two coupled multiline continuous-wave HF lasers
Abstract
Two multiline CW HF lasers employing unstable resonators were coupled by injecting 20 percent of each laser output into the other laser. The mutual coherence of the two output beams was measured by recording the visibility V of the interference fringes generated when the beams are overlapped. Both single-line and multiline interference patterns were observed. The output from the two lasers in the present experiment (20 percent coupling) was completely coupled, indicating that the achievement of stable coupling is not dependent on careful adjustment of the length of each laser resonator.
- Publication:
-
Optics Letters
- Pub Date:
- November 1987
- DOI:
- 10.1364/OL.12.000897
- Bibcode:
- 1987OptL...12..897B
- Keywords:
-
- Coherent Light;
- Continuous Wave Lasers;
- Hf Lasers;
- Laser Outputs;
- Optical Coupling;
- Coupled Modes;
- Optical Resonators;
- Lasers and Masers