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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 6 — Mar. 15, 2014
  • pp: 1633–1636

Low-power 2×2 silicon electro-optic switches based on double-ring assisted Mach–Zehnder interferometers

Liangjun Lu, Linjie Zhou, Xinwan Li, and Jianping Chen  »View Author Affiliations

Optics Letters, Vol. 39, Issue 6, pp. 1633-1636 (2014)

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We propose and experimentally demonstrate a low-power 2×2 silicon electro-optic (EO) switch consisting of a double-ring assisted Mach–Zehnder interferometer (DR-MZI). Active tuning elements based on p-i-n diodes and silicon resistive micro-heaters are embedded in the microrings for high-speed EO switching and low-loss thermo-optic (TO) tuning, respectively. The transmission spectrum shows the device can perform switching in a 60 GHz spectral window with a crosstalk less than 20dB. After phase error correction with 2.31 mW TO power, the EO switch power from cross to bar states is only 0.69 mW. The rise and fall times of the switch are 405 and 414 ps, respectively. The switch operation of the device is verified by high-throughput optical signal transmission up to 25 Gbps.

© 2014 Optical Society of America

OCIS Codes
(130.0130) Integrated optics : Integrated optics
(230.5750) Optical devices : Resonators
(130.4815) Integrated optics : Optical switching devices

ToC Category:
Integrated Optics

Original Manuscript: December 6, 2013
Revised Manuscript: February 14, 2014
Manuscript Accepted: February 15, 2014
Published: March 13, 2014

Liangjun Lu, Linjie Zhou, Xinwan Li, and Jianping Chen, "Low-power 2×2 silicon electro-optic switches based on double-ring assisted Mach–Zehnder interferometers," Opt. Lett. 39, 1633-1636 (2014)

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