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Proceedings Paper

Folded Mach-Zehnder interferometer based on photonic crystal self-collimation effect
Author(s): Xiyao Chen; Yufei Wang; Shengyu Chen; Xuemei Li; Nan Lin; Guimin Lin; Bo Ni; Jibo Bai; Junjun Li; Zexuan Qiang
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Paper Abstract

A Folded Mach-Zehnder interferometer (FMZI) in a two-dimensional photonic crystal is proposed. The FMZI consists of one splitter and several mirrors. Light propagates between them employing self-collimation effect. Its two interfering branches have different path lengths. The two complementary transmission spectra at two FMZI output ports are both in the shape of sinusoidal curves and have a uniform peak spacing in the frequency range from 0.255c/a to 0.270c/a. The peak spacing becomes smaller when the length difference between the two branches is increased. As self-collimation light beams can cross each other without coupling, this FMZI is much smaller than non-folded interference-type filters in photonic crystals. This FMZI may work as a wavelength division demultiplexer in high-density photonic integrated circuits.

Paper Details

Date Published: 1 December 2009
PDF: 6 pages
Proc. SPIE 7630, Passive Components and Fiber-based Devices VI, 76300J (1 December 2009); doi: 10.1117/12.851300
Show Author Affiliations
Xiyao Chen, Minjiang Univ. (China)
Yufei Wang, Longyan Univ. (China)
Shengyu Chen, Minjiang Univ. (China)
Xuemei Li, Minjiang Univ. (China)
Nan Lin, Minjiang Univ. (China)
Guimin Lin, Minjiang Univ. (China)
Bo Ni, Fujian Normal Univ. (China)
Jibo Bai, Fujian Normal Univ. (China)
Junjun Li, Fujian Normal Univ. (China)
Zexuan Qiang, Fujian Normal Univ. (China)

Published in SPIE Proceedings Vol. 7630:
Passive Components and Fiber-based Devices VI
Perry P. Shum, Editor(s)

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