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. 20, 2011
Filed:
Mar. 24, 2010
Guobin Liu, San Luis Obispo, CA (US);
Jianping Su, Sunnyvale, CA (US);
An-nien Chen, San Jose, CA (US);
Poorya Saghari, San Jose, CA (US);
Hui Xu, Santa Clara, CA (US);
Guobin Liu, San Luis Obispo, CA (US);
Jianping Su, Sunnyvale, CA (US);
An-Nien Chen, San Jose, CA (US);
Poorya Saghari, San Jose, CA (US);
Hui Xu, Santa Clara, CA (US);
Avago Technologies Fiber IP (Singapore) Pte. Ltd, Singapore, SG;
Abstract
A method and an apparatus are provided for use in a parallel optical transmitter or transceiver to compensate for variations in optical crosstalk in an optical output power monitoring system that are caused by lasers being enabled and/or disabled. In particular, the method and apparatus cause adjustments to be made to the reference value of each optical channel based on determinations of whether one or more lasers of the other optical channels have been disabled or enabled. By making these adjustments, the average optical output power level of each laser of each channel can be maintained at a desired or required level even if one or more of the lasers of one or more of the other channels is enabled or disabled.