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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 10 — May. 11, 2009
  • pp: 8657–8668

Integration of a photonic crystal polarization beam splitter and waveguide bend

Wanhua Zheng, Mingxin Xing, Gang Ren, Steven G. Johnson, Wenjun Zhou, Wei Chen, and Lianghui Chen  »View Author Affiliations

Optics Express, Vol. 17, Issue 10, pp. 8657-8668 (2009)

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In this work, we present the design of an integrated photonic-crystal polarization beam splitter (PC-PBS) and a low-loss photonic-crystal 60° waveguide bend. Firstly, the modal properties of the PC-PBS and the mechanism of the low-loss waveguide bend are investigated by the two-dimensional finite-difference time-domain (FDTD) method, and then the integration of the two devices is studied. It shows that, although the individual devices perform well separately, the performance of the integrated circuit is poor due to the multi-mode property of the PC-PBS. By introducing deformed airhole structures, a single-mode PC-PBS is proposed, which significantly enhance the performance of the circuit with the extinction ratios remaining above 20dB for both transverse-electric (TE) and transverse-magnetic (TM) polarizations. Both the specific result and the general idea of integration design are promising in the photonic crystal integrated circuits in the future.

© 2009 Optical Society of America

OCIS Codes
(230.1150) Optical devices : All-optical devices
(230.3990) Optical devices : Micro-optical devices
(250.5300) Optoelectronics : Photonic integrated circuits
(130.5296) Integrated optics : Photonic crystal waveguides
(230.5298) Optical devices : Photonic crystals
(130.5440) Integrated optics : Polarization-selective devices

ToC Category:
Photonic Crystals

Original Manuscript: November 30, 2008
Revised Manuscript: March 8, 2009
Manuscript Accepted: May 1, 2009
Published: May 8, 2009

Wanhua Zheng, Mingxin Xing, Gang Ren, Steven G. Johnson, Wenjun Zhou, Wei Chen, and Lianghui Chen, "Integration of a photonic crystal polarization beam splitter and waveguide bend," Opt. Express 17, 8657-8668 (2009)

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