Theory of spectral linewidth of external cavity semiconductor lasers
Journal Article
·
· IEEE J. Quant. Electron.; (United States)
A new formula of the spectral linewidth of external cavity semiconductor lasers is proposed, with which linewidth narrowing with the optical feedback is discussed. It is shown that in the limit of large external cavity length, the linewidth caused by the phase diffusion due to spontaneously emitted photons becomes dominant and the linewidth decreases proportionally to the inverse of the external cavity length.
- Research Organization:
- Matsushita Electric Industrial Co., Ltd., Osaka 570
- OSTI ID:
- 5628445
- Journal Information:
- IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. QE-22:7; ISSN IEJQA
- Country of Publication:
- United States
- Language:
- English
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