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Proceedings Paper

Study on the nonlinear polarization rotation law in a bulk semiconductor optical amplifier in a pump-probe scheme
Author(s): Xianghua Feng; Jiarong Ji; Wenhua Dou; Guomin Zhang
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Paper Abstract

The physical mechanisms for the polarization rotation of the light in a bulk semiconductor optical amplifier (SOA) originate from the significant nonuniform distributions of carrier density across the active region. Due to this carrier density’s nonuniformity, the effective refractive indexes experienced by transverse-electric (TE) and transverse-magnetic (TM) modes of the probe are different. This results in a phase shift between TE and TM modes of the light upon leaving the SOA. The bulk SOA polarization rotation’s law can be analyzed theoretically and experimentally based on the method of measuring output power in a pump-probe scheme. The experiment employs polarizer driving by walking electromotor and power meter, the light power of every orientation is measured. The transformation law of output polarization is find for obvious polarization rotation in other perpendicular axes based on connection of ellipse in difference axes.

Paper Details

Date Published: 15 October 2012
PDF: 10 pages
Proc. SPIE 8420, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical System Technologies for Manufacturing and Testing, 84200I (15 October 2012); doi: 10.1117/12.978253
Show Author Affiliations
Xianghua Feng, National Univ. of Defense Technology (China)
Information Engineering Univ. (China)
Jiarong Ji, National Univ. of Defense Technology (China)
Wenhua Dou, National Univ. of Defense Technology (China)
Guomin Zhang, Information Engineering Univ. (China)


Published in SPIE Proceedings Vol. 8420:
6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical System Technologies for Manufacturing and Testing
Xiangdi Lin; Yoshiharu Namba; Tingwen Xing, Editor(s)

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