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Intensity self-pulsations in (GaAl)As injection lasers operating in an external cavity

Figueroa, Luis and Lau, Kam and Yariv, Amnon (1980) Intensity self-pulsations in (GaAl)As injection lasers operating in an external cavity. Applied Physics Letters, 36 (4). pp. 248-250. ISSN 0003-6951. doi:10.1063/1.91463.

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We present an experimental and theoretical study of a self-pulsing (GaAl)As injection laser operating in an external cavity. We have observed suppression of the self-pulsations when the external cavity is in the range 6 < L < 10 cm. Suppression of self-pulsations can also be obtained by using a multimode graded index optical fiber as the external resonator. These results can be explained by a model which includes the effects of an external cavity and electron trapping. For long cavity lengths, the self-pulsation frequency locks to an external cavity harmonic with no significant quenching, as observed in some earlier experiments.

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Additional Information:© 1980 American Institute of Physics. Received 12 October 1979; accepted for publication 4 December 1979. The authors are grateful to E. Lin for some help in the computer programming, T.R. Ranganath and H. W. Yen for discussions.
Subject Keywords:semiconductor lasers; laser cavities; pulsations; gallium arsenides; aluminium compounds; mathematical models; data; oscillation modes; resonators; harmonics; scintillation quenching
Issue or Number:4
Classification Code:PACS: 42.55.Px; 42.60.By
Record Number:CaltechAUTHORS:20120720-110650397
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Official Citation:Intensity self-pulsations in (GaAl)As injection lasers operating in an external cavity Luis Figueroa, Kam Lau, and Amnon Yariv, Appl. Phys. Lett. 36, 248 (1980), DOI:10.1063/1.91463
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:32610
Deposited On:20 Jul 2012 19:35
Last Modified:09 Nov 2021 21:28

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