Optical Phase Conjugation for Dispersion and Nonlinearity Compensation in a 1600km, 42 Gb/s Quasi-Lossless System

Abstract

Abstract:We experimentally investigate a long-distance, high-bit-rate transmission system which combines optical-phase-conjugation with quasi-lossless amplification. Comparison with a conventional system configuration demonstrates the possibility of obtaining both dispersion compensation and improved nonlinear tolerance using proposed scheme.

1THz-Bandwidth Polarization-Diverse Optical Phase Conjugation of 10×114Gb/s DP-QPSK WDM Signals

“…OPC nonlinear elements, typically operating via χ 2 or χ 3 susceptibility have ranged from discrete semiconductor optical amplifiers/lasers [2] to periodically poled lithium niobate crystals (PPLN) [3] and optical fibers such as highly nonlinear fiber (HNLF) [4]. More recently with DSP algorithms compensating for linear impairments in coherent receivers, OPC is being re-examined as a potentially efficient technique for parallel compensation of multichannel nonlinear transmission impairments [5].…”