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. 11, 2017
Filed:
Aug. 27, 2012
Seong Min Ju, Gwangju, KR;
Young Woong Kim, Goyang-si, KR;
Pramod R. Watekar, Aurangabad, IN;
Seong Mook Jeong, Gwangju, KR;
Won Taek Han, Gwangju, KR;
Seong Min Ju, Gwangju, KR;
Young Woong Kim, Goyang-si, KR;
Pramod R. Watekar, Aurangabad, IN;
Seong Mook Jeong, Gwangju, KR;
Won Taek Han, Gwangju, KR;
ZETTO, LTD., Gwangju, KR;
Abstract
An all-fiber isolator as an optical isolator comprises: an optical fiber acting as an optical light guide for propagating incident light; and a Faraday rotator for rotating by 45° a plane of polarization polarized by the polarizer. The all-fiber isolator exhibits a magneto-optic effect enough to be used as an optical isolator at a visible light wavelength by including quantum dots in a core layer and/or an internal cladding layer of the optical fiber.