Open AccessOptically tunable compensation of nonlinear signal distortion in optical fiber by end-span optical phase conjugation
Author(s) -
Mark Pelusi,
Benjamin J. Eggleton
Publication year - 2012
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.008015
Subject(s) - optics , distortion (music) , signal (programming language) , span (engineering) , phase distortion , wavelength division multiplexing , transmission (telecommunications) , self phase modulation , cross phase modulation , nonlinear distortion , optical fiber , optical power , bit error rate , phase conjugation , nonlinear system , phase (matter) , nonlinear optics , physics , phase modulation , computer science , telecommunications , phase noise , channel (broadcasting) , bandwidth (computing) , engineering , wavelength , amplifier , laser , civil engineering , quantum mechanics , programming language
We demonstrate a nonlinear signal processing approach for compensating nonlinear distortion caused by the Kerr effect in optical fiber transmission. The concept relies on propagating the signal through a separate all-optical module outside the link to apply tunable nonlinear distortion and phase-conjugation in series. We show this uniquely enables tunable regeneration of phase-encoded 40 Gb/s signals of different data-formats and number of WDM channels, to allow significantly higher transmission powers through single and multi-span fiber links. An improvement in the receiver power penalty by 3~4 dB for a bit-error-rate (BER) of ≈10⁻⁵ is achieved.