Title:
MULTICORE OPTICAL FIBER
Document Type and Number:
WIPO Patent Application WO/2023/182227
Kind Code:
A1
Abstract:
A multicore optical fiber (MCF) according to one embodiment of the present invention enables stable core identification. The MCF comprises a glass optical fiber and a resin coating. The glass optical fiber includes a plurality of cores, a marker, and cladding. The arrangement of the centers of the cores and the center of the marker in a cross-section of the MCF does not have rotational symmetry with respect to the center of the cross-section. The cladding includes an inner clad that surrounds the cores and the marker, and an outer clad that is provided on the outer peripheral surface of the inner clad and has a refractive index higher than that of the inner clad.
Inventors:
HASEGAWA TAKEMI (JP)
SUGANUMA TAKAHIRO (JP)
SAKUMA HIROTAKA (JP)
SUGANUMA TAKAHIRO (JP)
SAKUMA HIROTAKA (JP)
Application Number:
PCT/JP2023/010691
Publication Date:
September 28, 2023
Filing Date:
March 17, 2023
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
G02B6/02; G02B6/036
Domestic Patent References:
| WO2020217939A1 | 2020-10-29 | |||
| WO2022210786A1 | 2022-10-06 | |||
| WO2022085534A1 | 2022-04-28 |
Foreign References:
| JP2014197094A | 2014-10-16 | |||
| JP2011170099A | 2011-09-01 | |||
| JP2013033865A | 2013-02-14 | |||
| CN104035166A | 2014-09-10 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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