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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 6 — Mar. 15, 2014
  • pp: 1370–1373

Silicon optical diode based on cascaded photonic crystal cavities

Yong Zhang, Danping Li, Cheng Zeng, Zengzhi Huang, Yi Wang, Qingzhong Huang, Ying Wu, Jinzhong Yu, and Jinsong Xia  »View Author Affiliations

Optics Letters, Vol. 39, Issue 6, pp. 1370-1373 (2014)

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An all-silicon passive optical diode based on optical nonlinearity in cascaded photonic crystal (PhC) L3 cavities is proposed and demonstrated. A nonreciprocal transmission ratio (NTR) of 30.8 dB and insertion loss of 8.3 dB are realized in the device. The device has a relatively broad 17 dB operation bandwidth of 0.08 nm, and at least 16 dB of NTR is achieved when input power varies between 6.25 and 2.95dBm. A nonlinear couple mode model for cascaded PhC cavities is established to analyze the behavior of the device, and numerical simulation results are in good agreement with the experiment results.

© 2014 Optical Society of America

OCIS Codes
(230.3120) Optical devices : Integrated optics devices
(230.4320) Optical devices : Nonlinear optical devices
(230.5298) Optical devices : Photonic crystals

ToC Category:
Optical Devices

Original Manuscript: October 3, 2013
Revised Manuscript: December 20, 2013
Manuscript Accepted: January 15, 2014
Published: March 5, 2014

Yong Zhang, Danping Li, Cheng Zeng, Zengzhi Huang, Yi Wang, Qingzhong Huang, Ying Wu, Jinzhong Yu, and Jinsong Xia, "Silicon optical diode based on cascaded photonic crystal cavities," Opt. Lett. 39, 1370-1373 (2014)

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