Patent ID: 6429932
Filing Date: 2002-08-06
Classification: G02B

Abstract:
An apparatus for post manufacture processing of an optical circuit including an optical waveguide having a light transmission property which has been altered by exposure to radiation, the apparatus comprising:a table for mounting the optical circuit; a beam source means for providing a beam of radiation of a predetermined nature for impinging upon the mounted optical circuit; a source of light energy in a spectrum in which the mounted optical circuit is intended to be operable, the source of light energy being connectable for transmitting light to the mounted optical circuit; detecting means being connectable to receive light energy from the mounted optical circuit and to generate indications representative of received light energy; a controller being dependent upon the indictions representative of received light energy and a data base peculiar to a particular design of the mounted optical circuit for selecting at least one portion of the mounted optical circuit and directing the beam of electromagnetic radiation from the beam source means upon a selected portion of the mounted optical circuit; and wherein the table is movable responsive to the controller, and the beam source means includes an attenuator being responsive to an intensity signal from the controller whereby when the optical circuit is mounted on the table a portion of the optical circuit is selectable for exposer to variable intensities of said beam of radiation.