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:
Apr. 17, 2001
Filed:
Mar. 24, 1998
Minoru Yamada, Kanazawa, JP;
Kanazawa University, Ishikawa Pref., JP;
Abstract
A unidirectional optical amplifier comprising an optical dielectric waveguide having a high refraction index for leading light from a light input terminal to a light output terminal and a straight electron beam transit section extended in an electron beam transit direction. The optical amplifier includes an amplifier section for amplifying light in one direction by utilizing an energy level sufficiently higher than a Fermi level, and an emissive section for emitting an electron beam in the electron beam transit section. The electron beam transit section is preferably constituted so that the effective mass of an electron in the amplifier section becomes small, and the optical dielectric waveguide and the electron beam transit section are arranged in such a manner that the wave number of light in the amplifier section becomes large and an electric field component of the light is generated in the electron beam transit direction.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile