Coherent pulsed injection seeding of two gain-switched semiconductor lasers
Abstract
High-power, narrow-spectrum, short pulses at a wavelength near 830 nm are needed for optical logic applications. The authors report the generation of two coherent trains of pulses by pulsed injection seeding of two gain-switched semiconductor lasers with one mode-locked master oscillator. The available power was doubled and both lasers emit in nearly identical spectral lines. Short pulses (30-50 ps) are generated at a repetition rate of 1.9 GHz. The spectrum is reduced to a single mode cluster and shows a 1.7-A wide chirp suitable for pulse compression. The peak power is 0.1 W for each pulse train. The capability of this technique for coherent power combining is demonstrated.
- Publication:
-
IEEE Photonics Technology Letters
- Pub Date:
- December 1991
- DOI:
- 10.1109/68.118003
- Bibcode:
- 1991IPTL....3.1069C
- Keywords:
-
- Laser Mode Locking;
- Laser Outputs;
- Pulse Repetition Rate;
- Pulsed Lasers;
- Semiconductor Lasers;
- Chirp;
- Injection Locking;
- Optical Computers;
- Pulse Compression;
- Lasers and Masers