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:
Dec. 09, 2014
Filed:
Mar. 28, 2013
Panasonic Corporation, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A light modulator () includes a waveguide () through which guided light propagates, a metal layer () formed adjacent to the waveguide (), a conductive oxide layer () having electrical conductivity and formed on a surface of the metal layer () which is not adjacent to the waveguide (), an insulating layer () formed adjacent to the conductive oxide layer (), and a modulation circuit () that applies a voltage between the metal layer () and one of the conductive oxide layer () and the insulating layer (). An interface () at which the conductive oxide layer () and the insulating layer () are adjacent to each other is formed at a distance shorter than a wavelength of the guided light in vacuum, from the surface of the metal layer () which is not adjacent to the waveguide ().