Temporal and spectral characteristics of rapidly gain-switched GaAs/GaAlAs buried-heterostructure lasers
Abstract
The temporal and spectral output of GaAs/GaAlAs buried-heterostructure lasers under excitation with 60 ps electrical pulses is investigated for different DC bias conditions. Optical pulses comparable in width to the electrical pulses can be obtained only if the DC bias is below or close to threshold, where multimode emission is observed. For DC bias well above threshold the laser remains single-mode; however, the optical pulses are considerably broadened.
- Publication:
-
Electronics Letters
- Pub Date:
- May 1983
- DOI:
- 10.1049/el:19830267
- Bibcode:
- 1983ElL....19..385V
- Keywords:
-
- Beam Switching;
- Heterojunction Devices;
- Picosecond Pulses;
- Semiconductor Lasers;
- Ultrashort Pulsed Lasers;
- Aluminum Gallium Arsenides;
- Electric Pulses;
- Gallium Arsenides;
- Laser Outputs;
- Photonics;
- Power Gain;
- Spectral Resolution;
- Temporal Resolution;
- Lasers and Masers