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Optical Engineering

Design and analysis of a polymer Mach-Zehnder interferometer electro-optic switch over a wide spectrum of 110 nm
Author(s): Chuan-Tao Zheng; Chung-Shen Ma; Xin Yan; Xian-Yin Wang; Da-Ming Zhang
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Paper Abstract

A dual-driving polymer Mach-Zehnder interferometer (MZI) electro-optic switch is designed and optimized, which consists of a phase-generating coupler (PGC) and a 3-dB directional coupler. Structural schematics and principles of the PGC and the switch are described. Novel formulas of the switching time are presented. Under the central operation wavelength of 1550 nm, simulation for the designed device shows that the push-pull switching voltage is 2.445 V, the switching time is 18.1 ps, and the cross talk is less than -30 dB. By optimizing the PGC structure, the phase error resulting from the wavelength shift can be compensated effectively, and a wide spectrum about 110 nm can be achieved. The proposed analytical technique on waveguides and electrodes proves to be accurate and computationally efficient when compared with the beam propagation method (BPM) and the experimental results.

Paper Details

Date Published: 1 May 2009
PDF: 10 pages
Opt. Eng. 48(5) 054601 doi: 10.1117/1.3129846
Published in: Optical Engineering Volume 48, Issue 5
Show Author Affiliations
Chuan-Tao Zheng, Jilin Univ. (China)
Chung-Shen Ma, Jilin Univ. (China)
Xin Yan, Jilin Univ. (China)
Xian-Yin Wang, Jilin Univ. (China)
Da-Ming Zhang, Jilin Univ. (China)

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