G. Hunziker et al., POLARIZATION-INDEPENDENT WAVELENGTH CONVERSION AT 2.5 GB S BY DUAL-PUMP 4-WAVE-MIXING IN A STRAINED SEMICONDUCTOR OPTICAL AMPLIFIER/, IEEE photonics technology letters, 8(12), 1996, pp. 1633-1635
We give a general expression for the polarization dependence of the fo
ur-wave mixing (FWM) efficiency in the dual-pump configuration. This e
xpression, along with some general properties of the FWM susceptibilit
y tensor, is used to propose a simple scheme to generate a nearly (1.5
-dB variation) polarization independent FWM converted signal. The viab
ility of this scheme is verified in a wavelength conversion experiment
at 2.5 Gb/s.