Dual optically stabilized semiconductor lasers for coherent optical communications
Abstract
A model is presented on the optical stabilization of a semiconductor laser via resonant optical feedback from an external high-finesse cavity. The model predicts the laser linewidth in the limit of a white frequency noise spectrum, the locking range, and expected deviations of the locked laser's operating frequency from the external resonator's axial mode frequency. The model's prediction were verified through two experiments: one in which a single semiconductor laser is stabilized by resonant optical feedback and another in which two semiconductor lasers were optically locked to different axial modes of the same confocal Fabry-Perot cavity. Techniques for optically locking multiple semiconductor lasers to different modes of an optical resonator are described. Applications of such multiple optically stabilized semiconductor lasers to optical communications are discussed.
- Publication:
-
Lasers 1989
- Pub Date:
- 1990
- Bibcode:
- 1990lase.conf..899B
- Keywords:
-
- Coherent Radiation;
- Optical Communication;
- Semiconductor Lasers;
- White Noise;
- Fabry-Perot Interferometers;
- Laser Mode Locking;
- Mathematical Models;
- Resonant Frequencies;
- Lasers and Masers