SAMPLED GRATING DISTRIBUTED BRAGG REFLECTOR LASER CONTROLLER

摘要

A controller (100) for use with sampled grating distributed Bragg reflector laser (102), SGDBR, is presented. An exemplary controller (100) includes a table of settings representing a control surface, each setting corresponding to a separate operating point of the SGDBR laser (102), a first mirror current controller (100) and a second mirror current controller (100). The first mirror current controller (100) and the second mirror current controller (100) respectively control a first mirror current (112) and a second mirror current (112) about an estimated extremum point of the control surface to substantially maintain alignment between each of a first mirror (102) and a second mirror (102), and an associated cavity mode (102). The first mirror current (112) and the second mirror current (112) can be locked at a substantially fixed distance from the extremum of the control surface.