Patent ID: 6359915
Filing Date: 2002-03-19
Classification: H01S

Abstract:
A stabilized distributed Bragg reflector laser comprisinga gain section providing desired stimulated emission along a wave path at a selected longitudinal mode wavelength &pgr;; a pair of Bragg reflector mirrors, disposed at separate exit locations of said gain section along said wave path, a first Bragg reflector mirror of said pair of Bragg reflector mirrors reflecting emission at a center wavelength slightly longer than the selected longitudinal mode wavelength, and a second, remaining Bragg reflector mirror of said pair of Bragg reflector mirrors reflecting emission at a center wavelength slightly shorter than the selected longitudinal mode wavelength; and an arrangement for stabilizing the selected longitudinal mode wavelength of the laser, said arrangement comprising a first optical detector disposed at the output of the first Bragg reflector mirror and a second optical detector disposed at the output of the second Bragg reflector mirror, said first and second optical detectors generating an electrical correction feedback signal from the first and second Bragg reflector outputs, using the electrical correction feedback signal to modify the relative location of the gain section selected longitudinal mode wavelength with the center wavelengths of the pair of Bragg reflector mirrors to stabilize the laser emission.