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Published April 15, 1983 | public
Journal Article Open

On the linewidth enhancement factor alpha in semiconductor injection lasers


A simple model for the linewidth enhancement factor alpha and its frequency dependence in semiconductor lasers is presented. Calculations based on this model are in reasonable agreement with experimental results.

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Copyright © 1983 American Institute of Physics (Received 3 December 1982; accepted 18 January 1983) The authors acknowledge support from the National Science Foundation and the Office of Naval Research. One author (K.J.V.) gratefully acknowledges support from the IBM Corporation.


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