Multichannel nonlinear distortion compensation using optical phase conjugation in a silicon nanowire

Dragana Vukovic (1, 2) , Jochen Schröder (3, 1) , Francesco da Ros (2) , Liang Bangyuan Du (4) , Chang Joon Chae (5) , Duk-Yong Choi (6) , Mark D Pelusi (1) , Christophe Peucheret (7)

1 CUDOS
2 DTU Fotonik - Department of Photonics Engineering
3 RMIT University - Royal Melbourne Institute of Technology University
4 CUDOS
5 NICTA - National ICT Australia [Sydney]
6 ANU - Australian National University
7 FOTON - Fonctions Optiques pour les Technologies de l'informatiON

We experimentally demonstrate compensation of nonlinear distortion caused by the Kerr effect in a 3 × 32-Gbaud quadrature phase-shift keying (QPSK) wavelength-division multiplexing (WDM) transmission system. We use optical phase conjugation (OPC) produced by four-wave mixing (FWM) in a 7-mm long silicon nanowire. A clear improvement in Q-factor is shown after 800-km transmission with high span input power when comparing the system with and without the optical phase conjugation module. The influence of OSNR degradation introduced by the silicon nanowire is analysed by comparing transmission systems of three different lengths. This is the first demonstration of nonlinear compensation using a silicon nanowire.

Domains: Optics / Photonic; Optics [physics.optics]

Dragana Vukovic, Jochen Schröder, Francesco da Ros, Liang Bangyuan Du, Chang Joon Chae, et al.. Multichannel nonlinear distortion compensation using optical phase conjugation in a silicon nanowire. Optics Express, 2015, 23 (3), pp.3640-3646. ⟨10.1364/OE.23.003640⟩. ⟨hal-01114783⟩