Influence of graded index waveguides on the gain difference between TEO and TMO modes of semiconductor optical amplifiers

Changhua Chen; ZunTu Xu; Tao Yin; Peng Lian; Hongdong Zhao; Guo Gao; Jianxing Chen; Deshu Zou; Guangdi Shen; Junying Xu; Guowen Yang; Lianhui Chen; Qiming Wang

doi:10.1117/12.319621

19 August 1998 Influence of graded index waveguides on the gain difference between TEO and TMO modes of semiconductor optical amplifiers

Changhua Chen, ZunTu Xu, Tao Yin, Peng Lian, Hongdong Zhao, Guo Gao, Jianxing Chen, Deshu Zou, Guangdi Shen, Junying Xu, Guowen Yang, Lianhui Chen, Qiming Wang

Author Affiliations +

Proceedings Volume 3547, Semiconductor Lasers III; (1998) https://doi.org/10.1117/12.319621
Event: Photonics China '98, 1998, Beijing, China

Abstract

Polarization independent semiconductor optical amplifiers are highly desirable for optical communication. In this paper, the influence of graded index waveguides on the gain difference between TE₀ and TM₀ modes of semiconductor optical amplifiers is studied in detail. A new numerical procedure called complex shooting method was proposed at first to solve the eigenvalues of waveguides with graded complex refractive index. The results show that a graded index waveguide will increase the polarization sensitivity of the modal gain while an unplanar waveguide can decrease it. A polarization independent semiconductor optical amplifier can be obtained by adopting an unplanar waveguide.

Citation Download Citation

Changhua Chen, ZunTu Xu, Tao Yin, Peng Lian, Hongdong Zhao, Guo Gao, Jianxing Chen, Deshu Zou, Guangdi Shen, Junying Xu, Guowen Yang, Lianhui Chen, and Qiming Wang "Influence of graded index waveguides on the gain difference between TEO and TMO modes of semiconductor optical amplifiers", Proc. SPIE 3547, Semiconductor Lasers III, (19 August 1998); https://doi.org/10.1117/12.319621

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