Sampled grating distributed Bragg reflector laser controller

Coherent light generators – Particular component circuitry – For driving or controlling laser

Reexamination Certificate

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C372S038070, C372S029015, C372S029016

Reexamination Certificate

active

06954476

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

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