Wavelength-shift-free optical phase conjugation WDM transmission using bandwidth-shift-free optical phase conjugators

Abstract

The first wavelength-shift-free phase-conjugated WDM transmission is numerically demonstrated by the transmission of 15×10 Gbps WDM signal on 1539.77–1550.92 nm over 900 km with Q factor larger than 7 using 2 bandwidth-shift-free Sagnac-based optical phase conjugators constructed by 120-m-long highly-nonlinear photonic crystal fiber (HNL-PCF).