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Proceedings Paper

Ultracompact channel filters based on race-track photonic crystal ring resonators
Author(s): Xiaofu Xu; Junqin Wang; Junzhen Jiang; Junjun Li; Xiyao Chen; Yishen Qiu; Zexuan Qiang
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Paper Abstract

We proposed a new channel drop filter (CDF) based on race-track photonic crystal ring resonator (PCRR) composed of square-lattice cylindrical silicon rods in air. Two representative scenarios, parallel and perpendicular, related to the direction of race track and bus channel waveguide, are comparably studied by using 2D finite-difference time-domain technique. A good set of parameters with adequate modal spacing can be determined by adjusting the amount and size of scatterers. By optimizing the relationship among surrounding periods, race-track ring size and coupling strength, more than 150 spectral quality factor and 93.9% dropped efficiency can be achieved at 1370-nm channel for one single race-track PCRR. These findings enhance and enrich the PCRRs as an alternative to current micro-ring resonators for ultra-compact WDM components and high density photonic integration.

Paper Details

Date Published: 17 November 2010
PDF: 7 pages
Proc. SPIE 7847, Optoelectronic Devices and Integration III, 78471L (17 November 2010); doi: 10.1117/12.868378
Show Author Affiliations
Xiaofu Xu, Fujian Normal Univ. (China)
Junqin Wang, Fujian Normal Univ. (China)
Junzhen Jiang, Fujian Normal Univ. (China)
Junjun Li, Fujian Normal Univ. (China)
Xiyao Chen, Minjiang Univ. (China)
Yishen Qiu, Fujian Normal Univ. (China)
Zexuan Qiang, Fujian Normal Univ. (China)


Published in SPIE Proceedings Vol. 7847:
Optoelectronic Devices and Integration III
Xuping Zhang; Hai Ming; Alan Xiaolong Wang, Editor(s)

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