Agilent Technologies, Inc.

Falgun Patel

Tong Xie

Ralph Henry Page

Yakov Sidorin

An integrated-optic attenuator/equalizer device comprising a photorefractive substrate, at least one optical waveguide channel formed in the substrate, at least one diffractive-Bragg grating formed in the substrate, and a diffractive-Bragg grating modulator that is capable of modulating the diffractive Bragg grating(s). The diffractive-Bragg grating(s) intersects the optical waveguide channel. When a diffractive-Bragg grating formed in the substrate is modulated, at least a fraction of light of a wavelength associated with the modulated diffractive-Bragg grating is re-directed by the modulated diffractive-Bragg grating, thereby preventing the re-directed fraction of light from arriving at the output of the optical waveguide channel. Multiple diffractive-Bragg gratings may be implemented in the integrated-optic device, each having a particular wavelength associated therewith, and the diffractive-Bragg gratings may be simultaneously or independently modulated to control the fractions of light of different wavelengths that arrive at the output of the optical waveguide channel.

Integrated-optic device and a method for attenuating light or equalizing light using integrated-optic device

An integrated-optic device comprising a photorefractive substrate, an optical waveguide channel and at least one diffractive Bragg grating integrated in the substrate and intersecting the optical waveguide channel. The diffractive Bragg grating(s) causes at least a fraction of light coupled into the optical waveguide channel to be coupled out of the optical waveguide channel.

Growing community of inventors

Palo Alto, CA, United States of America

Falgun Patel