Mode‐locked femtosecond 910 nm Nd:fibre laser with phase biased non‐linear loop mirror

Abstract

The authors demonstrate a mode-locked Nd:fibre laser working at 910 nm incorporating a phase biased non-linear loop mirror. The broadest spectral width of the pulse is 11.9 nm and the output power is 20 mW with 450 mW pump power. The dechirped pulse width is 206 fs. To the best of authors' knowledge, this is the first demonstration of a 900 nm femtosecond neodymium fibre laser based on a non-linear loop mirror.