Title :
Differential phase-shift keying for high spectral efficiency optical transmissions
Author :
Xu, Chris ; Liu, Xiang ; Wei, Xing
Author_Institution :
Dept. of Appl. Phys., Cornell Univ., Ithaca, NY, USA
Abstract :
Differential phase-shift keying (DPSK) has attracted significant attentions in research and development during the last several years. An overview of DPSK for high spectral efficiency optical transmission is presented in this paper. The advantages of DPSK in terms of receiver sensitivity and tolerance to fiber nonlinearity will be discussed in detail. A simplified method for estimating the performance of phase-shift keying in numerical simulations is explained. Results of experimental and numerical investigations of several phase shift keying formats, including polarization division multiplexing and multilevel encoding, will be reviewed. Finally, methods for further enhancing performance of phase-shift keying in long-haul transmissions, specifically the compensation of nonlinear phase jitter, are presented.
Keywords :
differential phase shift keying; encoding; jitter; multiplexing; nonlinear optics; optical fibre communication; optical fibres; optical receivers; DPSK; differential phase-shift keying; fiber nonlinearity; fiber-optic data transmissions; high spectral efficiency optical transmissions; long-haul transmissions; multilevel encoding; nonlinear phase jitter; polarization division multiplexing; receiver sensitivity; Differential phase shift keying; Differential quadrature phase shift keying; Fiber nonlinear optics; Nonlinear optics; Optical fiber polarization; Optical receivers; Optical sensors; Phase estimation; Phase shift keying; Research and development; Communication systems; modulation coding; nonlinear optics; optical fiber communication; phase modulation; phase shift keying;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2004.827835
