Microstructure-Fibre-Based Optical Parametric Amplification in Telecom Band with Ultra-High Gain Slope

We report a microstructure-fibre-based parametric amplification experiment in telecom band with ultra-high gain slope. A peak on-off gain of 52.3dB is achieved using 25m high nonlinear microstructure fibre (MF) and only 5.3W pump power. The parametric gain slope is up to 580dBW^-1km^-1. From the experimental data, the linear coefficient of the MF is estimated to be about 66.7W^-1km^-1. The experiment shows the great potential of MFs in practical fibre parametric amplifiers.