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Theory of gain, modulation response, and spectral linewidth in AlGaAs quantum well lasers

Arakawa, Yasuhiko and Yariv, Amnon (1985) Theory of gain, modulation response, and spectral linewidth in AlGaAs quantum well lasers. IEEE Journal of Quantum Electronics, 21 (10). pp. 1666-1674. ISSN 0018-9197.

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We investigate theoretically a number of important issues related to the performance of AlGaAs quantum well (QW) semiconductor lasers. These include a basic derivation of the laser gain, the linewidth enhancement factor α, and the differential gain constant in single and multiple QW structures. The results reveal the existence of gain saturation with current in structures with a small number of wells. They also point to a possible two-fold increase in modulation bandwidth and a ten-fold decrease in the spectral laser linewidth in a thin QW laser compared to a conventional double heterostructure laser.

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Additional Information:© Copyright 1985 IEEE. Reprinted with permission. Manuscript received February 8, 1985; revised May 13, 1985. This work was supported by the Air Force Office of Scientific Research, the Office of Naval Research, the ITT Corporation, and the Japan Society for Promotion of Science.
Issue or Number:10
Record Number:CaltechAUTHORS:ARAieeejqe85
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:8745
Deposited By: Archive Administrator
Deposited On:12 Sep 2007
Last Modified:02 Oct 2019 23:53

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