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Proceedings Paper

Design and fabrication of 2×2 InP/InGaAsP optical switch
Author(s): Qiongfang Ma; Yongqing Huang; Hui Huang; Changyi Yang; Xiaomin Ren
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Paper Abstract

An InGaAsP/InP 2×2 Mach-Zehnder interferometer (MZI) optical switch based on multimode interference (MMI) couplers was presented. The switch characteristics were simulated using a three-dimensional beam propagation model. The switch structure was designed to be single mode operation and insensitive to polarization. The light signal can be switched from cross port to bar port with an injection current of 43mA by carrier modulation on the principle of injection free carriers, bend-filling effects and bandgap shrinkage. The measured crosstalk is -19.2dB and -14.3dB at the on and off state, respectively. This optical switch can be easily integrated with other active devices and has potential application in future DWDM and OXC systems.

Paper Details

Date Published: 18 November 2008
PDF: 8 pages
Proc. SPIE 7135, Optoelectronic Materials and Devices III, 713523 (18 November 2008); doi: 10.1117/12.803252
Show Author Affiliations
Qiongfang Ma, Beijing Univ. of Posts and Telecommunications (China)
Yongqing Huang, Beijing Univ. of Posts and Telecommunications (China)
Hui Huang, Beijing Univ. of Posts and Telecommunications (China)
Changyi Yang, Beijing Univ. of Posts and Telecommunications (China)
Xiaomin Ren, Beijing Univ. of Posts and Telecommunications (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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