Title:
MULTICORE FIBER
Document Type and Number:
WIPO Patent Application WO/2022/059699
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a multicore fiber in which increases in transmission loss are suppressed. This multicore fiber comprises a plurality of first glass regions including a core and a first cladding having a lower refractive index than the maximum refractive index of the core, and a cladding region formed circumferentially around the plurality of first glass regions, wherein the plurality of first glass regions are subjected to compressive stress. The cladding region is subjected to tensile stress. The multicore fiber further comprises a second glass region which is surrounded by the plurality of first glass regions and which includes a second cladding in contact with the first cladding of each of the plurality of first glass regions, wherein, in a distribution of the stress produced between the cores of the plurality of first glass regions facing each other with the second glass region in between, the average value of the compressive stress in the first glass regions is less than the average value of the compressive stress in the second glass region.
More Like This:
| WO/1995/023771 | HOLDER FOR ANNEALING FIBER OPTIC COILS |
Inventors:
TAKAHASHI MASANORI (JP)
MAEDA KOICHI (JP)
SUGIZAKI RYUICHI (JP)
ARASHITANI YOSHIHIRO (JP)
MAEDA KOICHI (JP)
SUGIZAKI RYUICHI (JP)
ARASHITANI YOSHIHIRO (JP)
Application Number:
PCT/JP2021/033899
Publication Date:
March 24, 2022
Filing Date:
September 15, 2021
Export Citation:
Assignee:
FURUKAWA ELECTRIC CO LTD (JP)
International Classes:
G02B6/02
Foreign References:
| JP2017161705A | 2017-09-14 | |||
| JP2017171555A | 2017-09-28 | |||
| JP2013122502A | 2013-06-20 | |||
| US20060029343A1 | 2006-02-09 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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