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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 3 — Feb. 5, 2007
  • pp: 839–844

New transmitter configuration for subcarrier multiplexed DPSK systems and its applications to chromatic dispersion monitoring

Ning Liu, Wen-De Zhong, Yang Jing Wen, and Zhaohui Li  »View Author Affiliations

Optics Express, Vol. 15, Issue 3, pp. 839-844 (2007)

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We present a new transmitter configuration using a single dual-electrode Mach-Zehnder Modulator (DE-MZM) for generating DPSK signal and subcarrier simultaneously. We then apply this new configuration to monitoring chromatic dispersion (CD) in DPSK systems by detecting the RF power at both of the clock and subcarrier frequencies. Our investigations show that the method can greatly improve CD monitoring capability. The impact of subcarrier on the DPSK performance is also investigated. Results show that by simply selecting the subcarrier close to half of the DPSK data rate frequency, we can significantly suppress the subcarrier induced power penalty to DPSK signal.

© 2007 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.5060) Fiber optics and optical communications : Phase modulation
(260.2030) Physical optics : Dispersion

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: September 25, 2006
Revised Manuscript: January 2, 2007
Manuscript Accepted: January 12, 2007
Published: February 5, 2007

Ning Liu, Wen-De Zhong, Yang Jing Wen, and Zhaohui Li, "New transmitter configuration for subcarrier multiplexed DPSK systems and its applications to chromatic dispersion monitoring," Opt. Express 15, 839-844 (2007)

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