Title :
Nonlinear Distortion in Transmission of Higher Order Modulation Formats
Author :
Behrens, Carsten ; Killey, Robert I. ; Savory, Seb J. ; Chen, Ming ; Bayvel, Polina
Author_Institution :
Opt. Networks Group, Univ. Coll. London, London, UK
Abstract :
Transmission performance of a range of modulation formats including differentially encoded binary-, quaternary-, 8-, and 16-phase-shift-keying (DBPSK, DQPSK, D8PSK, and D16PSK) as well as 8- and 16-quadrature amplitude modulation (D8QAM and D16QAM) over optically compensated and DCF-free links are compared. Four different pulse-shapes are considered in a single-channel environment and the relative impact of intrachannel nonlinearities and nonlinear phase noise are analyzed.
Keywords :
differential phase shift keying; optical fibre communication; optical fibre dispersion; optical modulation; optical transmitters; quadrature amplitude modulation; quadrature phase shift keying; D16PSK); D16QAM; D8PSK; D8QAM; DBPSK; DQPSK; differentially encoded binary; higher order modulation formats; intrachannel nonlinearity; nonlinear distortion; nonlinear phase noise; pulse shape; quadrature amplitude modulation; quaternary phase shift keying; single channel environment; Coherent detection; higher order modulation formats; nonlinear phase noise; nonlinearities; quadrature amplitude modulation (QAM);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2049099
