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Mode selection and stability of a semiconductor laser with weak optical feedback

Journal Article · · IEEE (Institute of Electrical and Electronics Engineers) Journal of Quantum Electronics; (USA)
DOI:https://doi.org/10.1109/3.42053· OSTI ID:5295353
;  [1]
  1. Alberta Telecommunications Research Centre, Edmonton, Alta. T6E 5Y4 (CA)

Measurements are presented that show that a semiconductor laser with weak optical feedback oscillates in the external-cavity mode with the narrowest linewidth rather than the mode with minimum threshold gain, as often assumed. A frequency fluctuation model is proposed that explains this narrowest linewidth operation. This model also correctly predicts mode-hopping frequencies. It is shown that the frequency span of the external-cavity modes determines the critical feedback level that causes coherence collapse.

OSTI ID:
5295353
Journal Information:
IEEE (Institute of Electrical and Electronics Engineers) Journal of Quantum Electronics; (USA), Journal Name: IEEE (Institute of Electrical and Electronics Engineers) Journal of Quantum Electronics; (USA) Vol. 25:11; ISSN 0018-9197; ISSN IEJQA
Country of Publication:
United States
Language:
English

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