Patent ID: 6020986
Filing Date: 2000-02-01
Classification: H04J

Abstract:
An add/drop apparatus for selecting component signals of a multi-wavelength optical beam transiting an optical network in which each component signal has an amplitude and a unique wavelength; the apparatus comprising:a circulator means for receiving said optical beam at an entry port and combining said optical beam with a supplemental optical beam received at a second port for presenting an augmented optical beam to an exit port;an array of fiber Bragg gratings in communication with said circulator means second port, each of said fiber Bragg gratings tuned to a respective one of said component signal wavelengths, said plurality of fiber Bragg gratings for presenting, in response to control signals, a selected one of said component signals to said supplemental optical beam; anda controller for generating said optical control signals to switch selected ones of said fiber Bragg gratings between transmissive and reflective states.