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:
Mar. 16, 2010
Filed:
Sep. 06, 2007
James Stewart, Burlingame, CA (US);
Anthony Ho, Sunnyvale, CA (US);
Andreas Weber, Los Altos, CA (US);
Lucy G. Hosking, Santa Cruz, CA (US);
James Stewart, Burlingame, CA (US);
Anthony Ho, Sunnyvale, CA (US);
Andreas Weber, Los Altos, CA (US);
Lucy G. Hosking, Santa Cruz, CA (US);
Finisar Corporation, Sunnyvale, CA (US);
Abstract
A microprocessor is used to control the temperature of a laser emitter and thereby regulate the wavelength of optical signals from the laser. A serial interface in the microprocessor provides input and output lines to a host device, and temperature lookup tables are stored in nonvolatile memory. Control logic processes information stored in the memory as well as information on operating conditions of the laser emitter to precisely control the temperature of the laser emitter. A thermo-electric cooler adjusts the temperature of the laser emitter.