Nearly transform-limited pulse (3.6 ps) generation from gain-switched 1.55 μm distributed feedback laser by using fibre compression technique

Abstract

A train of short and nearly transform-limited pulses (3.6 ps) is generated from a 1.55 μm gain-switched distributed feedback laser by fibre compression. These are the shortest pulses generated at 1.55 μm by using a linear fibre compression technique. The bias current dependence of pulse width and time bandwidth product is also investigated.