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Published December 16, 1991 | public
Journal Article Open

Approximate expressions for modulation speed and threshold for performance optimization of biaxially compressive strain quantum-well lasers

Abstract

Simple analytical expressions for transparency, threshold, and relaxation oscillation corner frequency are derived for biaxial strain quantum-well lasers. An optimal operating point loss for high speed operation (in the absence of nonlinear gain) is established which varies as the square root of the number of quantum wells. The corresponding relaxation oscillation frequency is found to depend only on fundamental quantities. Its power dependence is [vR(max) = (87 GHz õm^3/mW) (Powerout/Vmode)^1/2) where Vmode is the mode volume.

Additional Information

Copyright © 1991 American Institute of Physics (Received 10 January 1991; accepted 24 September 1991) The authors would like to thank T. P. Lee for several useful discussions and comments.

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