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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 20 — Oct. 4, 2004
  • pp: 4751–4757

Clock recovery using cascaded LiNbO3 modulator

Hao Dong, Hongzhi Sun, Guanghao Zhu, Qiang Wang, and Niloy K. Dutta  »View Author Affiliations

Optics Express, Vol. 12, Issue 20, pp. 4751-4757 (2004)

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In this paper, we demonstrate clock recovery from a patterned optical-time-division-multiplexed (OTDM) return-to-zero (RZ) data stream. A cascaded LiNbO3 Mach-Zehnder modulator is employed as an efficient optical-electrical mixer. A phase-locked-loop (PLL) is used to lock the cross-correlation component between the optical signal and a local oscillating signal. As a result, clock signal at 10GHz is extracted from the 160Gb/s optical TDM signal. The measured root-mean-square (RMS) timing jitter of the 10GHz clock signal is ~ 130fs.

© 2004 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.4230) Fiber optics and optical communications : Multiplexing

ToC Category:
Research Papers

Original Manuscript: August 11, 2004
Revised Manuscript: September 17, 2004
Published: October 4, 2004

Hao Dong, Hongzhi Sun, Guanghao Zhu, Qiang Wang, and Niloy Dutta, "Clock recovery using cascaded LiNbO3 modulator," Opt. Express 12, 4751-4757 (2004)

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