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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: Henry van Driel
  • Vol. 29, Iss. 11 — Nov. 1, 2012
  • pp: 3047–3056

Design of a high-modulation-depth, low-energy silicon modulator based on coupling tuning in a resonance-split microring

Tao Wang, Mu Xu, Fei Li, Jiayang Wu, Linjie Zhou, and Yikai Su  »View Author Affiliations

JOSA B, Vol. 29, Issue 11, pp. 3047-3056 (2012)

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We design a silicon microring modulator based on mutual-mode coupling tuning by introducing an electrically tunable grating in the microring. By tuning the grating reflectivity that changes the mutual coupling strength, optical modulation is realized since transmission switches from a peak to a dip at the resonant wavelength with resonance-splitting in the ring. High modulation depth and low energy consumption can be achieved as sufficient grating reflectivity change can be obtained with low drive voltage. Simulations show that the proposed modulator can achieve a modulation depth of 13 dB at 1550 nm wavelength with energy consumption of 122.3 fJ / bit .

© 2012 Optical Society of America

OCIS Codes
(230.3120) Optical devices : Integrated optics devices
(250.5300) Optoelectronics : Photonic integrated circuits
(250.7360) Optoelectronics : Waveguide modulators

ToC Category:

Original Manuscript: June 22, 2012
Revised Manuscript: September 7, 2012
Manuscript Accepted: September 14, 2012
Published: October 11, 2012

Tao Wang, Mu Xu, Fei Li, Jiayang Wu, Linjie Zhou, and Yikai Su, "Design of a high-modulation-depth, low-energy silicon modulator based on coupling tuning in a resonance-split microring," J. Opt. Soc. Am. B 29, 3047-3056 (2012)

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