Title :
Highly efficient multichannel wavelength conversion of DPSK signals
Author :
Devgan, Preetpaul ; Tang, Renyong ; Grigoryan, Vladimir S. ; Kumar, Prem
Author_Institution :
Center for Photonic Commun. & Comput., Northwestern Univ., Evanston, IL
Abstract :
This paper demonstrates a multichannel wavelength conversion of differential phase-shift-keyed (DPSK) signals using four-wave mixing in a highly nonlinear fiber. The wavelengths of three 10-Gb/s nonreturn-to-zero (NRZ) DPSK channels are simultaneously converted without incurring the cross-gain modulation penalty usually associated with on-off-keyed signals. A maximum conversion efficiency of 85% was achieved for both NRZ and return-to-zero DPSK signals
Keywords :
differential phase shift keying; multiwave mixing; optical fibre communication; optical fibres; optical wavelength conversion; telecommunication channels; 10 Gbit/s; DPSK signals; differential phase-shift-keyed signals; four-wave mixing; multichannel wavelength conversion; nonlinear fiber; nonreturn-to-zero channels; on-off keyed signals; return-to-zero signals; Differential quadrature phase shift keying; Four-wave mixing; Frequency conversion; Optical crosstalk; Optical materials; Optical modulation; Optical pumping; Optical signal processing; Optical wavelength conversion; Wavelength conversion; Differential phase-shift keying (DPSK); multichannel; wavelength conversion;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2006.882244
