Wavelength self stabilisation of coupled-cavity semiconductor lasers
Abstract
A simple wavelength control circuit is demonstrated that maintains single-longitudinal-mode operation of coupled-cavity semiconductor lasers over wide ranges of temperature. Photodetection properties of the lasing system itself are used for generating the discriminating signal for the feedback loop. No external optical elements like photodetectors or spectrometers are required.
- Publication:
-
Electronics Letters
- Pub Date:
- January 1984
- DOI:
- Bibcode:
- 1984ElL....20...69E
- Keywords:
-
- Frequency Stability;
- Laser Cavities;
- Laser Stability;
- Semiconductor Lasers;
- Feedback Control;
- Laser Outputs;
- Optical Coupling;
- Temperature Dependence;
- Thermal Stability;
- Wavelengths;
- Lasers and Masers