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Proceedings Paper

Investigation of PLZT-based high-speed optical switch
Author(s): Ronghui Qu; Zujie Fang; Feng Liu; Qing Ye; Weizai Zhang; Gang Chen
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Paper Abstract

The polarization characteristics of electro-optical (EO) switches using fiber Sagnac interferometers (FSI) structures are theoretically investigated. Analytical solutions of output fields are presented when the twists and birefringence in a Sagnac loop is considered. Numerical calculations show that the twists of fiber, the orientation of the inserted phase retarder and the splitting ratio of the coupler will influence both the output intensity and the output polarization properties of the proposed switch. A polarization independent EO switch based on hybrid integration of a Sagnac interferometer and a PLZT retarder was experimentally implemented, which showed good coincidence with the analytical results. The experiment showed a switch with -22dB crosstalk and less than 31 ns switching time.

Paper Details

Date Published: 2 December 2005
PDF: 8 pages
Proc. SPIE 6019, Passive Components and Fiber-based Devices II, 60190I (2 December 2005); doi: 10.1117/12.636588
Show Author Affiliations
Ronghui Qu, Shanghai Institute of Optics and Fine Mechanics (China)
Zujie Fang, Shanghai Institute of Optics and Fine Mechanics (China)
Feng Liu, Shanghai Institute of Optics and Fine Mechanics (China)
Qing Ye, Shanghai Institute of Optics and Fine Mechanics (China)
Weizai Zhang, Shanghai Institute of Optics and Fine Mechanics (China)
Gang Chen, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 6019:
Passive Components and Fiber-based Devices II
Yan Sun; Jianping Chen; Sang Bae Lee; Ian H. White, Editor(s)

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