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:
Jun. 14, 2016
Filed:
May. 21, 2014
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Asako Toda, Santa Clara, CA (US);
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A method of optical modulator calibration is disclosed. The method may include modulating, by an optical modulator, a received optical signal with a first electrical signal to generate a modulated optical signal, a polarity of data carried by the modulated optical signal, and an optical power of the modulated optical signal based on a temperature of the optical modulator. The method may also include monitoring the optical power of the modulated optical signal and in response to the optical power of the modulated optical signal being below or equal to a power threshold, adjusting the temperature of the optical modulator. In response to the optical power of the modulated optical signal being above the optical power threshold, the method may also include checking the polarity of the data carried by the modulated optical signal.