Title:
MULTICORE FIBER, PITCH CONVERSION DEVICE, OPTICAL FIBER CONNECTING BODY, AND METHOD FOR PRODUCING OPTICAL FIBER CONNECTING BODY
Document Type and Number:
WIPO Patent Application WO/2023/008341
Kind Code:
A1
Abstract:
A multicore fiber (10) is provided with multiple core parts (11) and a cladding part (12) that encloses the outer periphery of the multiple core parts and has a refractive index that is lower than the maximum refractive index of the core parts. The mode field diameter at a wavelength of 1550 nm is 5 μm or less; the core pitch, which is the distance between the centers of the core parts that are nearest in a cross section perpendicular to the lengthwise direction, is 20 μm or less; the inter-core crosstalk is -20 dB/km or less; and the macrobend loss at a wavelength of 1550 nm with bending at a radius of 5 mm is 0.1 dB/m or less.
Inventors:
TAKAHASHI MASANORI (JP)
SUGIZAKI RYUICHI (JP)
SUGIZAKI RYUICHI (JP)
Application Number:
PCT/JP2022/028521
Publication Date:
February 02, 2023
Filing Date:
July 22, 2022
Export Citation:
Assignee:
FURUKAWA ELECTRIC CO LTD (JP)
International Classes:
G02B6/02
Domestic Patent References:
| WO2020080254A1 | 2020-04-23 |
Foreign References:
| US20210026063A1 | 2021-01-28 | |||
| JP2021039340A | 2021-03-11 | |||
| JP2003337267A | 2003-11-28 | |||
| JP2014503081A | 2014-02-06 | |||
| JP2020115191A | 2020-07-30 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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