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. 09, 2013
Filed:
Aug. 01, 2011
Yasushi Koyama, Kamakura, JP;
Kousuke Kajiki, Tokyo, JP;
Yasushi Koyama, Kamakura, JP;
Kousuke Kajiki, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An optical frequency converter includes a waveguide including a core made of a nonlinear optical medium having a refractive index nin a wavelength region of light, and cladding disposed so as to cover the core and made of a material whose refractive index nin the wavelength region of light is lower than the refractive index n, and a coupling section made of a material whose refractive index nin a wavelength region of a terahertz wave is higher than the refractive index nand disposed in contact with the cladding. The coupling section is configured to couple the waveguide with a space in the wavelength region of the terahertz wave. The coupling section covers the cladding.