Dual-Pump Four-Wave Mixing in Bismuth-Oxide Highly Nonlinear Fiber for Wide-Band DPSK Wavelength Conversion

Wide-band wavelength conversion is obtained in a 32-cm highly nonlinear bismuth oxide fiber using dual-pump four-wave mixing. The conversion for a 10-Gb/s NRZ-DPSK signal shows a power penalty below 4 dB over a 30-nm range.