US 7,583,879 B2 · Coupled optical waveguide resonators with heaters for thermo-optic control of wavelength and compound filter shape

Abstract

An integrated optical device is disclosed comprising a substrate, optical waveguide, and compound optical resonator having a temperature sensor, at least two coupled optical resonators, and a heater localized to each optical resonator. An optical input signal is coupled to one of the resonators making up the compound resonator to form an optical output signal. The center wavelength and shape of the output signal is optimized with a feedback loop using the temperature sensor to control the power dissipated in at least one of the localized heaters. The power dissipated in the remaining resonator heaters is set according to a predetermined function having as an input variable the power dissipated in the resonant heater under control of the said feedback loop.

Claims27

Dependent claims

A method of making a device comprising the steps of:

providing a substrate;
forming an optical waveguide on the substrate;
forming a compound optical resonator on the substrate such that the compound optical resonator is optically coupled with the optical waveguide, the compound optical resonator comprising first and second optical resonators;
forming first and second heaters on the substrate, the first heater being configured to adjust a temperature of the first resonator and the second heater being configured to adjust a temperature of the second resonator;
and
forming a temperature sensor on the substrate, the temperature sensor being configured to sense the temperature of the first resonator and the temperature of the second resonator.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

11/800,568Filed 7 May 2007 · division

Priority

19 Aug 2005

Published

US 2007/0211992 A113 Sep 2007

Granted

1 Sep 2009

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

G02F 1/0147
For the control of the intensity, phase, polarisation or colour: based on thermo-optic effects
G02B 6/12007
Of the integrated circuit kind: forming wavelength selective elements, e.g. multiplexer, demultiplexer
G02F 1/3132
In an optical waveguide structure: of directional coupler type
G02F
Optical devices or arrangements for the control of light by modification of

Coupled optical waveguide resonators with heaters for thermo-optic control of wavelength and compound filter shape

Life of this patent

Coupled optical waveguide resonators with heaters for thermo-optic control of wavelength and compound filter shape

Life of this patent

Abstract

Claims27