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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 34, Iss. 7 — Apr. 1, 2009
  • pp: 899–901

Low-timing-jitter all-optical clock recovery for 40 Gbits s RZ-DPSK and NRZ-DPSK signals using a passively mode-locked quantum-dot Fabry–Perot semiconductor laser

Xuefeng Tang, John C. Cartledge, Alexandre Shen, Akram Akrout, and Guang-Hua Duan  »View Author Affiliations


Optics Letters, Vol. 34, Issue 7, pp. 899-901 (2009)
http://dx.doi.org/10.1364/OL.34.000899


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Abstract

We investigate experimentally all-optical clock recovery for return-to-zero (RZ) and nonreturn-to-zero (NRZ) differential phase-shift keying (DPSK) signals at 40 Gbits s using a passively mode-locked quantum-dot Fabry–Perot (QD-FP) semiconductor laser. The QD-FP laser exhibits a beat spectrum linewidth of 80 kHz , which enables a recovered clock signal with a root-mean-square timing jitter of 160 fs for the RZ-DPSK signal and 240 fs for the NRZ-DPSK signal. The timing jitter of the recovered clock signal is characterized for different values of the input signal power and the input signal optical signal-to-noise ratio.

© 2009 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(140.4050) Lasers and laser optics : Mode-locked lasers
(250.5590) Optoelectronics : Quantum-well, -wire and -dot devices

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: November 21, 2008
Revised Manuscript: January 16, 2009
Manuscript Accepted: February 3, 2009
Published: March 17, 2009

Citation
Xuefeng Tang, John C. Cartledge, Alexandre Shen, Akram Akrout, and Guang-Hua Duan, "Low-timing-jitter all-optical clock recovery for 40 Gbits/s RZ-DPSK and NRZ-DPSK signals using a passively mode-locked quantum-dot Fabry–Perot semiconductor laser," Opt. Lett. 34, 899-901 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-7-899

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