Simple methods for crosstalk reduction in fiber optical parametric amplifiers
15 July 2007
We propose and numerically demonstrate two simple methods for reduction of the crosstalk caused by four-wave mixing between the pump and the wavelength-division multiplexed channels in single-pump fiber optical parametric amplifier. The first one is based on a proper tuning of the WDM system from the pump wavelength and the second one uses the Stokes side rather than the anti-Stokes side in the gain band. (c) 2007 Elsevier B.V. All rights reserved.