High-impedance suppression of pump fluctuation and amplitude squeezing in semiconductor lasers
Journal Article
·
· Phys. Rev. A; (United States)
The pump amplitude fluctuation of a current-driven semiconductor laser can be suppressed to below the ordinary shot-noise level by ''high-impedance suppression.'' As a result of this pump-fluctuation suppression, the output of a current-driven semiconductor laser exhibits amplitude squeezing in the frequency region below the cavity bandwidth. The noise equivalent circuits and the quantum-mechanical Langevin equations are derived and discussed for clarifying the difference between an ordinary laser oscillator with shot-noise-limited pump fluctuation and a constant-current-driven semiconductor laser.
- Research Organization:
- Nippon Telegraph and Telephone Corporation, Musashino Electrical Communication Laboratories, Musashinoshi, Tokyo 180, Japan
- OSTI ID:
- 6088425
- Journal Information:
- Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 35:12; ISSN PLRAA
- Country of Publication:
- United States
- Language:
- English
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