Compensation of Dispersion and Nonlinear Impairments Using Digital Backpropagation

Author

Ip, Ezra ; Kahn, Joseph M.

Author_Institution

Dept. of Electr. Eng., Stanford Univ., Stanford, CA

Volume

26

Issue

20

fYear

2008

Firstpage

3416

Lastpage

3425

Abstract

Optical fiber transmission is impacted by linear and nonlinear impairments. We study the use of digital backpropagation (BP) in conjunction with coherent detection to jointly mitigate dispersion and fiber nonlinearity. We propose a noniterative asymmetric split-step Fourier method (SSFM) for solving the inverse nonlinear Schrodinger equation (NLSE). Using simulation results for RZ-QPSK transmitted over terrestrial systems with inline amplification and dispersion compensation, we obtain heuristics for the step size and sampling rate requirements, as well as the optimal dispersion map.

Keywords

Fourier transform optics; Schrodinger equation; compensation; inverse problems; nonlinear equations; nonlinear optics; optical fibre communication; optical fibre dispersion; optical receivers; quadrature phase shift keying; sampling methods; RZ-QPSK transmission; coherent detection; digital backpropagation; inline amplification; integrated digital receivers; inverse nonlinear Schrodinger equation; linear impairments; noniterative asymmetric split-step Fourier method; nonlinear impairments; optical fiber dispersion compensation; optical fiber transmission; optimal dispersion map; sampling rate; terrestrial system; Backpropagation; Fiber nonlinear optics; Nonlinear optics; Optical fiber dispersion; Optical fiber polarization; Optical filters; Optical mixing; Optical receivers; Optical signal processing; Phase noise; Coherent detection; chromatic dispersion; digital signal processing; optical Kerr effect; optical communications; phase noise; phase shift keying;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2008.927791

Filename

4738549