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:
Dec. 16, 2025
Filed:
Dec. 24, 2021
Applicant:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Inventors:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/02 (2006.01); G02B 6/036 (2006.01);
U.S. Cl.
CPC ...
G02B 6/02395 (2013.01); G02B 6/02 (2013.01); G02B 6/03627 (2013.01);
Abstract
An optical fiber includes a core made of silica glass, and a cladding surrounding the core and made of silica glass. A product of a center wavenumber kand a half width at half maximum kof a peak of Raman scattered light ω(TO) obtained by irradiating the core with excitation light having a wavelength of 532 nm is 38000 cmor less.