Quantum noise properties of an injection-locked laser oscillator with pump-noise suppression and squeezed injection
- Department of Microwave Engineering and Fibre Optics, Royal Institute of Technology, Box 70033, S-10044 Stockholm, (Sweden)
- NTT Basic Research Laboratories, 3-9-11 Midori-cho, Musashino-shi, 180 Tokyo (Japan)
The quantum noise properties of injection-locked semiconductor laser oscillators are investigated. Included in the analysis are pump-noise suppression and squeezing of the injection signal. It is shown that the main effect of injection locking is the reduction of the phase noise of the outgoing laser light field. The influence that squeezing of the injection signal state has on the output state is shown to be strongly dependent on the value of the linewidth enhancement factor. In general, little or no noise reduction stands to be gained by squeezing the injection signal. It is also shown that under idealized conditions, the spectral uncertainty product of the outgoing field will approach, but never go below, the minimum uncertainty value given by the Heisenberg uncertainty relation.
- OSTI ID:
- 6970669
- Journal Information:
- Physical Review, A (General Physics); (USA), Journal Name: Physical Review, A (General Physics); (USA) Vol. 41:9; ISSN PLRAA; ISSN 0556-2791
- Country of Publication:
- United States
- Language:
- English
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