Wavelegnth Division Multiplexed Transmission Over Standard Single Mode Fiber Using Polarization Insensitive Signal Conjugation in Highly Nonlinear Optical Fiber

We demonstrate 10 GB/s, 5-channel, wavelength multiplexed transmission over four 80-km standard fiber spans using polarization invariant spectral inversion. A fiber parametric amplifier using orthogonally polarized pumps having synchronized phase modulation for stimulated Brillouin suppression provides broad-band phase-conjugation, enabling transmission through the highly dispersive optical link.