Patent ID: 6434298
Filing Date: 2002-08-13
Classification: G02B

Abstract:
An apparatus for the fabrication of Bragg reflection filters, comprising;a wavelength tunable phase mask made of a non-linear optical material; a first laser light source for providing first beams of laser light of a first wavelength, the first beams being directed into the wavelength tunable phase mask to create an interference region within the wavelength tunable phase mask; a second laser light source for providing a second beam of laser light of a second wavelength, the second beam being directed into the interference region of the wavelength tunable phase mask created by the first beams to generate diffraction orders; and a receptor made of a parasitic material optically positioned proximate the wavelength tunable phase mask for reading the diffractions order into the receptor with the second laser light source to create a Bragg reflection filter therein.