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:
May. 01, 2007
Filed:
Jul. 18, 2003
Shoji Tanigawa, Sakura, JP;
Tomoharu Sagawa, Sakura, JP;
Masataka Ikeda, Sakura, JP;
Shoichiro Matsuo, Sakura, JP;
Kuniharu Himeno, Sakura, JP;
Koichi Harada, Sakura, JP;
Shoji Tanigawa, Sakura, JP;
Tomoharu Sagawa, Sakura, JP;
Masataka Ikeda, Sakura, JP;
Shoichiro Matsuo, Sakura, JP;
Kuniharu Himeno, Sakura, JP;
Koichi Harada, Sakura, JP;
Fujikura, Ltd., Tokyo, JP;
Abstract
A method of measuring polarization mode dispersion of an optical fiber includes inputting linearly polarized pulse light into an optical fiber, separating the input linearly polarized light from backscattered light from the optical fiber, detecting a light intensity of the backscattered light as time series data since the generation of the pulse light, calculating a fluctuation of the detected light intensity in the time series data, and evaluating polarization mode dispersion in the optical fiber, based on the calculated fluctuation value.