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:
Apr. 10, 2012
Filed:
Jul. 22, 2009
Alan C. Nilsson, Mountain View, CA (US);
Robert W. Smith, Sonoma, CA (US);
Yishai Kagan, Sunnyvale, CA (US);
Paul N. Freeman, Saratoga, CA (US);
Alan C. Nilsson, Mountain View, CA (US);
Robert W. Smith, Sonoma, CA (US);
Yishai Kagan, Sunnyvale, CA (US);
Paul N. Freeman, Saratoga, CA (US);
Infinera Corporation, Sunnyvale, CA (US);
Abstract
A transmissive active channel element is provided in each signal channel of a monolithic multi-channel TxPIC where each channel also includes a modulated source. The active channel element functions both as a power control element for both monitoring and regulating the output channel signal level of each signal channel and as a modulator for channel wavelength tagging or labeling to provide for wavelength locking the modulated sources. The power regulating function is also employed to control the channel signal power outputs of each channel to be uniform across the channel signal array. All of these functions are carried out by a feedback loop utilizing digital signal processing.