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Active Anti-Guide Vertical Cavity Surface Emitting Lasers with Diffused Quantum Wells Structure

Published online by Cambridge University Press:  10 February 2011

S. F. Yu
Affiliation:
Department of Electrical & Electronic Engineering, University of Hong Kong, Pokfulam Road, Hong Kong, [email protected]
E. Herbert Li
Affiliation:
Department of Electrical & Electronic Engineering, University of Hong Kong, Pokfulam Road, Hong Kong, [email protected]
W. M. Man
Affiliation:
Department of Electrical & Electronic Engineering, University of Hong Kong, Pokfulam Road, Hong Kong, [email protected]
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Abstract

The enhancement of single transverse mode operation in vertical cavity surface emitting lasers by using interdiffused quantum wells is proposed and analyzed. It is observed that the influence of self-focusing (arising from carrier spatial hole burning and thermal lensing) on the profile of transverse modes can be minimized by introducing a step diffused quantum wells structure inside the core region of quantum-well active layer. Stable single-mode operation in vertical cavity surface emitting lasers can also be maintained.

Type
Research Article
Copyright
Copyright © Materials Research Society 1998

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