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Proceedings Paper

Quantum-dot coupled tensile-strain quantum-well polarization insensitive semiconductor optical amplifier
Author(s): Lirong Huang; Pengfei Zhan; Shuping Fei; Dexiu Huang
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Paper Abstract

The optical gain of quantum-dot (QD) semiconductor optical amplifier (SOA) is usually seriously dependent on polarization, we propose QD coupled to tensile-strained quantum-well (QW) structure to obtain polarization insensitive QD SOA. A polarization-dependent coupled carrier rate equation model and multi-section SOA model are used to study the performance of QD-coupled QW SOA. Gain dependence on polarization is studied, TE gain contribution by QWs and QDs is compared, and carrier distribution competition among QWs and QDs is analyzed. It is shown that polarization insensitive gain can be realized in a relatively wide range of wavelength if QD-coupled tensile-strained QW SOA is properly designed.

Paper Details

Date Published: 18 November 2008
PDF: 7 pages
Proc. SPIE 7135, Optoelectronic Materials and Devices III, 71350A (18 November 2008); doi: 10.1117/12.802811
Show Author Affiliations
Lirong Huang, Huazhong Univ. of Science and Technology (China)
Pengfei Zhan, Huazhong Univ. of Science and Technology (China)
Shuping Fei, Huazhong Univ. of Science and Technology (China)
Dexiu Huang, Huazhong Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 7135:
Optoelectronic Materials and Devices III
Yi Luo; Jens Buus; Fumio Koyama; Yu-Hwa Lo, Editor(s)

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