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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 4 — Feb. 20, 2006
  • pp: 1430–1438

Simultaneous reshaping of OOK and DPSK signals by a fiber-based all-optical regenerator

Masayuki Matsumoto  »View Author Affiliations

Optics Express, Vol. 14, Issue 4, pp. 1430-1438 (2006)

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Simultaneous reshaping of optically time-division-multiplexed RZ-OOK and RZ-DPSK signals by a fiber-based regenerator is numerically demonstrated. The regenerator utilizes the four-wave mixing (FWM) in a highly nonlinear fiber. A parametric amplifier configuration without wavelength conversion of the signal is assumed, in which ultra-fast saturation of the FWM interaction gives stabilization of signal amplitude with the signal phase principally maintained. The regenerator greatly improves the performance of OOK tributaries. Although the regenerator does not have the function of phase regeneration, it improves the DPSK signal quality when the signal power is relatively low where the amplitude noise is significant. Influence of the pump phase modulation on the regenerator performance is also examined.

© 2006 Optical Society of America

OCIS Codes
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: December 5, 2005
Revised Manuscript: January 31, 2006
Manuscript Accepted: February 1, 2006
Published: February 20, 2006

Masayuki Matsumoto, "Simultaneous reshaping of OOK and DPSK signals by a fiber-based all-optical regenerator," Opt. Express 14, 1430-1438 (2006)

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