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Theory of polarization attraction in parametric amplifiers based on telecommunication fibers |
JOSA B, Vol. 29, Issue 10, pp. 2710-2720 (2012)
http://dx.doi.org/10.1364/JOSAB.29.002710
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Abstract
We develop from first principles the coupled wave equations that describe polarization-sensitive parametric amplification based on four-wave mixing (FWM) in standard (randomly birefringent) optical fibers. We show that in the small-signal case these equations can be solved analytically, and permit us to predict the gain experienced by the signal beam as well as its state of polarization (SOP) at the fiber output. We find that, independently of its initial value, the output SOP of a signal within the parametric gain bandwidth is solely determined by the pump SOP. We call this effect of pulling the polarization of the signal towards a reference SOP the polarization attraction, and we call the parametric amplifier the FWM polarizer (which can equivalently be called the fiber-optic parametric amplifier polarizer). Our theory is valid beyond the zero polarization mode dispersion (PMD) limit, and it takes into account moderate deviations of the PMD from zero. In particular, our theory is capable of analytically predicting the rate of degradation of the efficiency of the parametric amplifier, which is caused by the detrimental PMD effect.
© 2012 Optical Society of America
OCIS Codes
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(230.1150) Optical devices : All-optical devices
(230.4320) Optical devices : Nonlinear optical devices
(230.5440) Optical devices : Polarization-selective devices
ToC Category:
Fiber Optics and Optical Communications
History
Original Manuscript: May 25, 2012
Revised Manuscript: July 30, 2012
Manuscript Accepted: August 6, 2012
Published: September 11, 2012
Citation
Massimiliano Guasoni, Victor V. Kozlov, and Stefan Wabnitz, "Theory of polarization attraction in parametric amplifiers based on telecommunication fibers," J. Opt. Soc. Am. B 29, 2710-2720 (2012)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-10-2710
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