Efficient wavelength conversion and net parametric gain via Four Wave Mixing in a high index doped silica waveguide

We demonstrate sub-picosecond wavelength conversion in the Cband via four wave mixing in a 45cm long high index doped silica spiral waveguide. We achieve an on/off conversion efficiency (signal to idler) of + 16.5dB as well as a parametric gain of + 15dB for a peak pump power of 38W over a wavelength range of 100nm. Furthermore, we demonstrated a minimum gain of + 5dB over a wavelength range as large as 200nm.