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Patent Searching and Data


Title:
OPTICAL FIBER
Document Type and Number:
WIPO Patent Application WO/2020/009080
Kind Code:
A1
Abstract:
An optical fiber pertaining to an embodiment of the present invention is provided with a core, a cladding, and a coating layer. At the boundary of the core and the cladding, the local speed of sound decreases progressively from the core side to the cladding side. The local speed of sound varies continuously along the radial direction at least in the cladding. The line width of the Brillouin gain of base mode guided light is 60 MHz or greater.

Inventors:
HASEGAWA TAKEMI (JP)
Application Number:
PCT/JP2019/026189
Publication Date:
January 09, 2020
Filing Date:
July 01, 2019
Export Citation:
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Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
G02B6/036; G02B6/44
Foreign References:
US20110280584A12011-11-17
JP2008158227A2008-07-10
US20080008432A12008-01-10
Other References:
HAYASHI, NEISEI ET AL.: "Experimental observation of depolarized GAWBS in partially uncoated optical fibre", 2017 22ND MICROOPTICS CONFERENCE (MOC), THE JAPAN SOCIETY OF APPLIED PHYSICS, 2017, pages 356 - 357, XP033289249, DOI: 10.23919/MOC.2017.8244632
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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