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:
Mar. 19, 2024
Filed:
Jan. 17, 2022
Applicant:
Nec Laboratories America, Inc., Princeton, NJ (US);
Inventors:
Fatih Yaman, Princeton, NJ (US);
Hussam Batshon, Monroe, NJ (US);
Shinsuke Fujisawa, Princeton, NJ (US);
Kohei Nakamura, Tokyo, JP;
Takanori Inoue, Tokyo, JP;
Eduardo Mateo Rodriguez, Tokyo, JP;
Yoshihisa Inada, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 11/27 (2006.01); G01M 11/00 (2006.01);
U.S. Cl.
CPC ...
G01B 11/272 (2013.01); G01M 11/33 (2013.01);
Abstract
Aspects of the present disclosure describe estimating/measuring core-cladding concentricity error in optical fibers. In sharp contrast to the prior art, our inventive method is based on measuring a seemingly unrelated property of fibers called guided acoustic wave Brillouin scattering (GAWBS). As we shall show and describe, by analyzing this GAWBS property we advantageously determine what level of CCCE is exhibited by the optical fiber.