Frequency modulation noise and linewidth reduction in a semiconductor laser by means of negative frequency feedback technique
Journal Article
·
· Appl. Phys. Lett.; (United States)
Electrical negative frequency feedback control has been shown to reduce frequency modulation (FM) noise linewidth in semiconductor lasers. The method is based on the direct frequency modulation capability of a semiconductor laser. An error signal is extracted through optical heterodyne frequency discrimination detection using a stable master laser. FM noise is reduced by more than 20 dB and linewidth is reduced by one order of magnitude.
- Research Organization:
- Musashino Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation, 3-9-11 Midori-cho, Musashino-shi, Tokyo 180, Japan
- OSTI ID:
- 6219929
- Journal Information:
- Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 46:1; ISSN APPLA
- Country of Publication:
- United States
- Language:
- English
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