High-quality laser diode pulse compression in dispersion-imbalancedloop mirror

Abstract

High-quality femtosecond pulse generation from a 1.5 µm gain-switched DFB laser diode in a compact nonlinear compressor based on a dispersion-imbalanced fibre loop mirror is reported. An overall compression ratio of 80 is achieved, resulting in generation of near-transform-limited pulses with negligible tails and a duration of 270 fs.