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:
Dec. 03, 2013
Filed:
Aug. 09, 2011
Frankie Y. Liu, Palo Alto, CA (US);
Dinesh D. Patil, Fremont, CA (US);
Ronald Ho, Mountain View, CA (US);
Ashok V. Krishnamoorthy, San Diego, CA (US);
Frankie Y. Liu, Palo Alto, CA (US);
Dinesh D. Patil, Fremont, CA (US);
Ronald Ho, Mountain View, CA (US);
Ashok V. Krishnamoorthy, San Diego, CA (US);
Oracle International Corporation, Redwood Shores, CA (US);
Abstract
An optical device that includes a wavelength-sensitive optical component, which has an associated thermal time constant, is described. Note that an operating wavelength of the wavelength-sensitive optical component is a function of several physical parameters including temperature. Moreover, the optical device includes a heating mechanism that provides heat to the wavelength-sensitive optical component. Furthermore, the optical device includes a driver circuit that provides a pulse-width modulated signal to the heating mechanism. Note that an average pulse-width modulated heat provided by the heating mechanism, and which corresponds to the pulse-width modulated signal, thermally tunes the wavelength-sensitive optical component to a target operating wavelength. Additionally, note that the target operating wavelength corresponds to a target operating temperature of the wavelength-sensitive optical component.