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:
Aug. 02, 2011
Filed:
Aug. 30, 2006
Tetsuya Kawanishi, Tokyo, JP;
Masayuki Izutsu, Tokyo, JP;
Takahide Sakamoto, Tokyo, JP;
Masahiro Tsuchiya, Tokyo, JP;
Tetsuya Kawanishi, Tokyo, JP;
Masayuki Izutsu, Tokyo, JP;
Takahide Sakamoto, Tokyo, JP;
Masahiro Tsuchiya, Tokyo, JP;
National Institute of Information and Communications Technology, Koganei-Shi, JP;
Abstract
It is an object of the present invention to provide an optical modulation system capable of suppressing a carrier component (f) and a high order component (such as a second order component (f)). The optical modulation system includes Mach-Zehnder waveguide (), a first intensity modulator () provided on a first arm (), a second intensity modulator () provided on a second arm (), a first main Mach-Zehnder electrode (MZelectrode) (), and a second main Mach-Zehnder electrode (MZelectrode) (). Non-desired components propagating the respective arms are made to have reverse phase before optical signals are combined, whereby the optical modulation system is capable of suppressing the non-desired components when the optical signals are combined.