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:
Oct. 26, 2010
Filed:
Oct. 31, 2006
Ryo Shimizu, Chiyoda-ku, JP;
Takahisa Fujita, Chiyoda-ku, JP;
Toru Sugamata, Chiyoda-ku, JP;
Sumitomo Osaka Cement Co., Ltd., Tokyo, JP;
Abstract
It is an object of the invention to provide an optical modulator in which a connection substrate or a terminal substrate is disposed outside an optical modulation element and which can maintain at a proper voltage amplitude value a modulation signal applied to an optical modulation element. An optical modulator includes: a substrate having electro-optic effect; an optical waveguide formed on the substrate; an optical modulation elementhaving a modulation electrode (which includes a signal electrode) for modulating light passing through the optical waveguide; and a connection substratedisposed outside the substrate to supply a modulation signal for driving the optical modulation element to the optical modulation element. In the optical modulator, a signal line for propagating the modulation signal is formed on the connection substrate, and a modulation signal monitoring output linefor monitoring the voltage amplitude of the modulation signal is provided right in front of an end of the signal line for supplying the modulation signal from the signal line to the optical modulation element.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile