External-cavity-controlled 32-MHz narrow-band cw GaAlAs-diode lasers
Abstract
By coupling a CW GaAlAs-diode laser to an external resonator with Fabry-Perot etalons as dispersive elements, emission was reduced to a single-axial mode of 32-MHz width. The wavelength could be coarsely tuned over a spectral range of over 10 nm. Fine tuning over about 500 MHz was achieved by varying the external cavity length by less than one third the wavelength. At single-axial-mode operation, the commonly observed high- and low-frequency self-pulsing of the light output was found to disappear almost completely.
- Publication:
-
Optics Letters
- Pub Date:
- August 1977
- DOI:
- 10.1364/OL.1.000061
- Bibcode:
- 1977OptL....1...61V
- Keywords:
-
- Cavity Resonators;
- Continuous Wave Lasers;
- Gallium Arsenide Lasers;
- Infrared Lasers;
- Laser Cavities;
- Laser Modes;
- Bandwidth;
- Emission Spectra;
- Fabry-Perot Interferometers;
- Tuning;
- Lasers and Masers;
- LASERS: DIODE;
- SPECTROSCOPY;
- SOURCES