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:
Jul. 05, 2011
Filed:
Mar. 20, 2009
Akira Hamajima, Nagoya, JP;
Jungo Kondo, Nishikamo-gun, JP;
Osamu Mitomi, Sagamihara, JP;
Tetsuya Ejiri, Kasugai, JP;
Kenji Aoki, Nagoya, JP;
Akira Hamajima, Nagoya, JP;
Jungo Kondo, Nishikamo-gun, JP;
Osamu Mitomi, Sagamihara, JP;
Tetsuya Ejiri, Kasugai, JP;
Kenji Aoki, Nagoya, JP;
NGK Insulators, Ltd., Aichi-Prefecture, JP;
Abstract
An optical modulatorhas a supporting substrate, a modulating substratemade of an electro-optical material, an optical waveguideprovided on the side of a first main surfaceof the modulating substrate, and an adhesion layeradhering a second main surfaceof the modulating substrateonto the supporting substrate. The modulating substratehas a high-frequency interaction portionapplying a voltage on the optical waveguideto modulate propagating light, an incident portioninputting light to the optical waveguide, and an outgoing portionoutputting light from the optical waveguide. The high-frequency interaction portionis recessed on the first main surfaceof the modulating substratewith respect to the incident and outgoing portionsand. The high-frequency interaction portionhas a thickness smaller than the those of the incident and outgoing portionsand