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:
Nov. 09, 2010
Filed:
Jun. 29, 2007
Kouichi Masuda, Osaka, JP;
Tomoaki Ohira, Osaka, JP;
Kouichi Masuda, Osaka, JP;
Tomoaki Ohira, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
The present invention provides an optical transmission devicecapable of solving the problem of an unnecessary residual sideband components to thereby obtain a high-quality optical intensity-modulated signal in a case where an SSB optical modulation sectionhas wavelength dependence and a manufacturing error. In the optical transmission device, where the SSB optical modulation sectioncannot evenly branch the intensity of the optical carrier into two routes of optical waveguide, the amplitude adjusting sectionadjusts the amplitude of an electric signal that changes the refractive index of the SSB optical modulation sectionso that the unnecessary sideband component of the optical intensity-modulated signal outputted from the SSB optical modulation sectiondisappears.