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Proceedings Paper

Theoretical analysis for measuring the relaxation time between two subvalance bands by using transient incoherent spectroscopy
Author(s): Zhenhua Hu; Dexiu Huang; Shuzhong Gao
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Paper Abstract

A new scheme for studying dynamics process of semiconductor optical amplifier (SOA) in quantum wells structure (QWS) is proposed based on A-type three-level model. When the system is off-resonantly excited by incoherent light beams, the interaction process can be regarded as a coherent Anti-Stokes Raman scattering (CARS). The signal behavior determined by ultrafast process of sub-valance-band (SVB) are analyzed by the transient incoherent spectroscopy based on CARS. If the broad-band light resource as light emitting diode(LED) is utilized in experiment, the time resolution extends femtosecond-resolved. This experiment scheme which is composed of LED ,multimode fiber and the other devices is rather useful to investigate the carrier relaxation time between the two SVl3s.

Paper Details

Date Published: 29 August 2002
PDF: 4 pages
Proc. SPIE 4905, Materials and Devices for Optical and Wireless Communications, (29 August 2002); doi: 10.1117/12.480974
Show Author Affiliations
Zhenhua Hu, Huazhong Univ. of Science and Technology (China)
Dexiu Huang, Huazhong Univ. of Science and Technology (China)
Shuzhong Gao, Huazhong Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 4905:
Materials and Devices for Optical and Wireless Communications
Constance J. Chang-Hasnain; YuXing Xia; Kenichi Iga, Editor(s)

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