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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 25, Iss. 1 — Jan. 1, 2008
  • pp: 22–30

Investigation of the gain spectrum near the pumps of two-pump fiber-optic parametric amplifiers

M. E. Marhic, A. A. Rieznik, and H. L. Fragnito  »View Author Affiliations


JOSA B, Vol. 25, Issue 1, pp. 22-30 (2008)
http://dx.doi.org/10.1364/JOSAB.25.000022


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Abstract

We investigated the gain of two-pump fiber-optic parametric amplifiers (OPAs) when the signal is close to one pump. We considered all eight types of OPAs introduced in [ J. Opt. Soc. Am. B 20, 2425 (2003) ], and we extended the analysis of that paper from a four- to a six-wave model. We started from six coupled-wave equations and derived exact expressions for the parametric gain coefficients in all cases. The results were verified by simulations based on the split-step Fourier method. We found a variety of possible behaviors: the gain near the pumps may be higher or lower than the gain at the center wavelength, depending on the type of OPA and the operating conditions. In addition, the gain spectrum generally exhibits narrow peaks or dips on either side of the pumps. However, for one type of OPA the gain predicted by the six-wave model is the same as that predicted by the four-wave model, and the gain spectrum is very smooth near the pump.

© 2008 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: January 22, 2007
Revised Manuscript: September 12, 2007
Manuscript Accepted: October 17, 2007
Published: December 19, 2007

Citation
M. E. Marhic, A. A. Rieznik, and H. L. Fragnito, "Investigation of the gain spectrum near the pumps of two-pump fiber-optic parametric amplifiers," J. Opt. Soc. Am. B 25, 22-30 (2008)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-25-1-22

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