Time domain modelling of sampled grating tunable lasers

Monolithic tunable lasers are inevitably complex, and this complexity makes the design and development of such devices by a traditional iterative fabr ication and testing cycle very slow Also, from a systems perspective, it is important to be aware of what a tunable laser will do under any operating condition within a range of temperatures. Some of the capabilities of a tim e-domain-modelling technique applied to sampled-grating distributed-Bragg-r eflector tunable lasers are demonstrated. Results are presented for the sta tic tuning of different devices and the effect of a simple design change (w hich can be easily effected using the model) is investigated.