Patent ID: 6341025
Filing Date: 2002-01-22
Classification: G02B,H01S,H04B,H04J

Abstract:
An optical device comprising:a Bragg grating for coupling to an optical waveguide, said Bragg grating having an optical wavelength characteristic and interacting with light transmitted along said optical waveguide; an optical tap having an input and first and second outputs, said input of said optical tap being coupled to said Bragg grating; a detector coupled to said first output of said optical tap, said detector generating a sense signal in response to a first portion of said interacted light; a control element coupled to said detector and said Bragg grating, said control element adjusting said wavelength characteristic in response to said sense signal; and a receiver circuit coupled to said second output of said optical tap, said receiver being configured to receive a second portion of said interacted light.