Simulation of mode-locked lasers with LDSL-tool

This study shows simulated properties of mode-locked lasers. The example device is a monolithic four-section laser with a physical length of about 1 mm, consisting of a short saturable absorber (SA), an active gain section, a passive phase tuning section and an AR-coated DBR section, in the order of appearance. The sections are electrically isolated and can be driven separately. Calculations are performed by utilizing the software LDSL-tool which is dedicated for the simulation and analysis of longitudinal dynamics in multi-section semiconductor lasers. LDSL-tool is a distributed time-domain model, which is based on the traveling wave equations.