System for controlling power, wavelength and extinction ratio in optical sources, and computer program product therefor

摘要

A system for controlling the operating parameters of an optical source (1), such as a laser diode in a transmitter module for optical communications, includes: a set of sensors (2, 3, 8) providing sensing signals indicative of the operating parameters to be controlled, and a set of control elements (5 to 7) adapted to affect the operating parameters of the optical source in dependence of the sensing signals. The control elements include a digital controller such as a micro-controller (7) arranged to act both as a control system to maintain said operating parameters within respective pre-defined ranges and as a host interface to monitor the sensing signals and configure the system.