The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 2009
Filed:
May. 07, 2007
Sai Chu, Columbia, MD (US);
Frederick G. Johnson, Ellicott City, MD (US);
Oliver King, Annapolis, MD (US);
Marcus Schuetz, Severn, MD (US);
Brent Little, Columbia, MD (US);
Sai Chu, Columbia, MD (US);
Frederick G. Johnson, Ellicott City, MD (US);
Oliver King, Annapolis, MD (US);
Marcus Schuetz, Severn, MD (US);
Brent Little, Columbia, MD (US);
Infinera Corporation, Sunnyvale, CA (US);
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.