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:
Sep. 10, 2019
Filed:
Jul. 15, 2016
Nec Corporation, Tokyo, JP;
Akihiro Tanaka, Tokyo, JP;
Toshiharu Ito, Tokyo, JP;
Kohei Hosokawa, Tokyo, JP;
Seigo Takahashi, Tokyo, JP;
Manabu Arikawa, Tokyo, JP;
NEC CORPORATION, Minato-ku, Tokyo, JP;
Abstract
A receiving-side splitterthat constitutes part of an optical communication devicesplits a receiving-side signal light into a plurality of lights at a splitting ratio according to the intensity distribution of mutually different propagation modes included in the receiving-side signal light passed through a transmission medium. A transmission-side splittersplits a transmission-side signal light into a plurality of-lights. A signal processing devicedetects the light intensity and/or the phase of the receiving-side signal light, and sets a control target value for the light intensity and/or the phase of the transmission-side signal light to a value according to the result of the detection. A modulatoradjusts the light intensity or the phase of a the transmission-side signal light so that the light intensity or phase equals the set value. A multiplexermultiplexes the plurality of transmission-side signal lights.