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Correlation between intensity noise and longitudinal modes of a semiconductor laser coupled to an external cavity

Journal Article · · J. Appl. Phys.; (United States)
DOI:https://doi.org/10.1063/1.334451· OSTI ID:6116771

Correlation between intensity noise and fine structures of longitudinal modes in a semiconductor laser coupled to an external cavity has been investigated. It is experimentally shown that the intensity noise is perfectly suppressed when the laser oscillates in ''pure'' single frequency oscillation even with strong optical feedback. Intensity noise, which arises only when several external cavity modes exist, is interpreted in terms of the time-dependent refractive index in the semiconductor cavity caused by the light beatings among the lasing modes.

Research Organization:
Central Research Laboratory, Matsushita Electric Industrial Co. Ltd., Moriguchi, Osaka, Japan, 570
OSTI ID:
6116771
Journal Information:
J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 57:5; ISSN JAPIA
Country of Publication:
United States
Language:
English

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