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Strain Effects on Optical Gain Properties of GaN/AlGaN Quantum Well Lasers

Published online by Cambridge University Press:  10 February 2011

M. Suzuki  and
T. Uenoyama
M. Suzuki
Affiliation:
Central Research Laboratories, Matsushita Electric Industrial Co., Ltd., 3–4 Hikaridai, Seikacho, Sourakugun, Kyoto 619–02, Japan
T. Uenoyama
Affiliation:
Central Research Laboratories, Matsushita Electric Industrial Co., Ltd., 3–4 Hikaridai, Seikacho, Sourakugun, Kyoto 619–02, Japan
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Abstract

Subband structures and optical gains of the strained wurtzite GaN/AlGaN quantum well lasers are theoretically investigated on the basis of k.p theory. First-principles calculations are used for deriving the unknown physical parameters, such as deformation potentials. Neither compressive nor tensile biaxial strains are so effective on the reduction of the threshold carrier density. It is also found that the uniaxial strain in the c-plane is one of the preferable approaches for the efficient improvement of the laser performance.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 421: Symposium D – Compound Semiconductor Electronics and Photonics , 1996 , 171
Copyright
Copyright © Materials Research Society 1996

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