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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 35, Iss. 17 — Sep. 1, 2010
  • pp: 2940–2942

Electro-optical tunable time delay and advance in silicon microring resonators

Xianshu Luo, Hui Chen, and Andrew W. Poon  »View Author Affiliations

Optics Letters, Vol. 35, Issue 17, pp. 2940-2942 (2010)

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We demonstrate electro-optical tunable time delay and advance in a silicon-microring-resonator-based notch filter integrated with a lateral p-i-n diode. We tune the time delay and advance by controlling the coupling regimes from over- to under-coupling through carrier-injection-based free-carrier dispersion effect. We measure maximum time delay and advance of approximately 95 and ~96 ps near critical coupling, with bandwidths of ~3.5 and ~3 GHz, upon dc power consumption in the range of 1 mW . We model the transmission spectra and time delay/advance using the transfer-matrix method and analyze the time-intensity and time-bandwidth products, which show good agreement with our measurements.

© 2010 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(230.3990) Optical devices : Micro-optical devices
(230.5750) Optical devices : Resonators

ToC Category:
Optical Devices

Original Manuscript: June 15, 2010
Revised Manuscript: August 2, 2010
Manuscript Accepted: August 3, 2010
Published: August 25, 2010

Xianshu Luo, Hui Chen, and Andrew W. Poon, "Electro-optical tunable time delay and advance in silicon microring resonators," Opt. Lett. 35, 2940-2942 (2010)

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