Title :
Self-Pumping Wavelength Conversion for DPSK Signals and DQPSK Generation Through Four-Wave Mixing in Highly Nonlinear Optical Fiber
Author :
Zhou, G.T. ; Xu, K. ; Wu, J. ; Yan, Cishuo ; Su, Yikai ; Lin, J.T.
Author_Institution :
Key Lab. of Optical Commun. & Lightwave Technol., Beijing Univ. of Posts & Telecommun.
Abstract :
A novel scheme is proposed to achieve self-pumping wavelength conversion for two differential phase-shift keying (DPSK) signals at different wavelengths through four-wave mixing (FWM) effect in a highly nonlinear optical fiber. By changing the phase modulation depths to pi/2 for both of the DPSK signals, the two signals can be multiplexed to generate a differential quadrature phase-shift keying signal. The simulations and experimental results demonstrate the feasibility of phase manipulations for phase-shift keying signals through the FWM process
Keywords :
differential phase shift keying; multiplexing; multiwave mixing; optical fibre communication; optical fibres; optical modulation; optical pumping; optical wavelength conversion; quadrature phase shift keying; DPSK; DQPSK; differential phase-shift keying; differential quadrature phase-shift keying signal; four-wave mixing; highly nonlinear optical fiber; phase modulation depths; self pumping; wavelength conversion; Differential quadrature phase shift keying; Fiber nonlinear optics; Four-wave mixing; Optical fiber polarization; Optical fibers; Optical modulation; Optical receivers; Optical wavelength conversion; Phase shift keying; Signal generators; Differential phase-shift keying (DPSK); differential quadrature phase-shift keying (DQPSK); four-wave mixing (FWM); wavelength conversion;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.885590
