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:
May. 05, 2020
Filed:
Oct. 07, 2016
Jx Nippon Mining & Metals Corporation, Tokyo, JP;
Mitsuru Shinagawa, Tokyo, JP;
Mitsuru Shinagawa, Tokyo, JP;
Toshiaki Asahi, Tokyo, JP;
JX NIPPON MINING & METALS CORPORATION, Tokyo, JP;
Other;
Abstract
In an optical modulator capable of modulating incident laser beam L by a compound semiconductor single crystal having a property of generating an electro-optic effect, the attenuation of the signal strength in a low frequency band is prevented without lowering the carrier concentration of the compound semiconductor. The optical modulatorcomprises: incidence limiting meanswhich is provided on or near an incidence plane, on which the laser beam L can be incident, of the compound semiconductor single crystalso as to limit incidence of light other than the laser beam L on the incidence plane; and a shielding memberwhich is formed from a low-permittivity material having a light blocking effect, and covers a surfaceof the compound semiconductor single crystalextending along a traveling direction of the laser beam L that entered the compound semiconductor single crystal