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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 6 — Mar. 24, 2014
  • pp: 6647–6652

An SOI based polarization insensitive filter for all-optical clock recovery

Jinghui Zou, Yu Yu, Weili Yang, Zhao Wu, Mengyuan Ye, Guanyu Chen, Lei Liu, Shupeng Deng, and Xinliang Zhang  »View Author Affiliations

Optics Express, Vol. 22, Issue 6, pp. 6647-6652 (2014)

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We fabricate and demonstrate a compact polarization insensitive filter for all-optical clock recovery (CR) based on silicon-on-insulator (SOI), which consists of a microring resonator (MRR) and two modified two-dimensional (2D) grating couplers. The distributed Bragg reflectors (DBRs) are introduced to improve the coupling efficiency of the 2D grating coupler. The MRR works as a comb filter for CR, while the 2D grating couplers serve as the polarization diversity unit to achieve a polarization insensitive operation. A subsequent semiconductor optical amplifier (SOA) performs the amplitude equalization. Based on this scheme, a good clock signal with 970 fs timing jitter can be achieved at 44 Gb/s from input signals with arbitrary polarization states.

© 2014 Optical Society of America

OCIS Codes
(230.3120) Optical devices : Integrated optics devices
(230.5440) Optical devices : Polarization-selective devices

ToC Category:
Integrated Optics

Original Manuscript: November 19, 2013
Revised Manuscript: February 5, 2014
Manuscript Accepted: February 6, 2014
Published: March 14, 2014

Jinghui Zou, Yu Yu, Weili Yang, Zhao Wu, Mengyuan Ye, Guanyu Chen, Lei Liu, Shupeng Deng, and Xinliang Zhang, "An SOI based polarization insensitive filter for all-optical clock recovery," Opt. Express 22, 6647-6652 (2014)

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