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Optical Engineering

Optimization transmission of photonic crystal coupled cavity and design of demultiplexer for wavelength division multiplexing application
Author(s): Weijia Liu; Daquan Yang; Huiping Tian; Yuefeng Ji
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Paper Abstract

A new method to optimize transmission of photonic crystal filter composed of coupled cavities is proposed. This method can improve transmission without changing 3 dB bandwidth and it is achieved by shifting the defect rods in two cavities centripetally to shorten the distance between energy distribution centers within two cavities. Finally, an ultra compact four-channel demultiplexer is demonstrated by using this optimization method, and this device satisfies the coarse wavelength division multiplexing standard of ITU-T G.694.2 with transmission 99% for each channel.

Paper Details

Date Published: 2 August 2012
PDF: 7 pages
Opt. Eng. 51(8) 084002 doi: 10.1117/1.OE.51.8.084002
Published in: Optical Engineering Volume 51, Issue 8
Show Author Affiliations
Weijia Liu, Beijing Univ. of Posts and Telecommunications (China)
Daquan Yang, Beijing Univ. of Posts and Telecommunications (China)
Huiping Tian, Beijing Univ. of Posts and Telecommunications (China)
Yuefeng Ji, Beijing Univ. of Posts and Telecommunications (China)

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