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Proceedings Paper

Highly reflective Bragg mirrors for VCSEL applications at 1.3 and 1.55um
Author(s): Maria Linnik; Aristos Christou
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Paper Abstract

Quaternary semiconductor alloy material systems for applications as highly efficient Distributed Bragg Reflectors were investigated for two operating wavelengths of 1.3 and 1.55 micrometer. Based on the calculations of the material's energy bandgaps and indices of refraction for the entire composition range and for the corresponding incident wavelength, four quaternary alloys have been selected from which the refractive index difference between two adjacent layers of 0.65 has been obtained. All quaternary alloys were lattice matched to InP substrate. The reflectivity calculations show that for the DBR with a large index of refraction contrast, 16 pairs of layers would result in a reflectivity of 99%. The resulting monolithic VCSEL structure would consist of fewer DBR layers, interface roughness would be reduced, and, therefore, reliability of the device would be improved.

Paper Details

Date Published: 14 July 2000
PDF: 8 pages
Proc. SPIE 3944, Physics and Simulation of Optoelectronic Devices VIII, (14 July 2000); doi: 10.1117/12.391495
Show Author Affiliations
Maria Linnik, Univ. of Maryland/College Park (United States)
Aristos Christou, Univ. of Maryland/College Park (United States)

Published in SPIE Proceedings Vol. 3944:
Physics and Simulation of Optoelectronic Devices VIII
Rolf H. Binder; Peter Blood; Marek Osinski, Editor(s)

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