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. 17, 2015
Filed:
Jun. 24, 2013
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Inwoong Kim, Allen, TX (US);
Olga Vassilieva, Plano, TX (US);
Paparao Palacharla, Richardson, TX (US);
Motoyoshi Sekiya, Richardson, TX (US);
Jeng-Yuan Yang, Garland, TX (US);
Fujitsu Limited, Kawasaki-shi, JP;
Abstract
Systems and method for monitoring an optical power of a dual-polarization signal are disclosed. The systems and methods may include measuring a first parameter set associated with a supervisory signal, the supervisory signal being communicated in-band with the dual-polarization signal; calculating a second parameter set from the first parameter set; calculating an intensity value from the second parameter set, the intensity value associated with one of the polarization states of the dual-polarization signal; and estimating a signal power associated with the supervisory signal from the intensity value.