Recent Advances in Board-Band Orthogonal Pumps Four-Wave Mixing Technique for All-Optical Wavelength Conversion

摘要

We report recent results on all-optical wavelength conversion using broad-band orthogonal pumps four-wave mixing. The different approaches are developed based on a semiconductor optical amplifier placed in a fiber-ring cavity. Using a single external pump laser, a conversion efficiency with a variation smaller than 3 dB has been achieved over a 40-nm operating range. We further demonstrate polarization-insensitive widely tunable wavelength conversion with a polarization diversity scheme. The power penalty is determined to be 3 dB in a 10 Gb/s bit-error-rate measurement. In a modified approach employing a double-ring SOA fiber cavity, all external pumps have been successfully eliminated.