Title:
OPTICAL CABLE, ELECTRONIC DEVICE, AND OPTICAL COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/195280
Kind Code:
A1
Abstract:
The present invention makes it possible to increase transmittable distance while suppressing a decrease in optical power coupling efficiency. Connectors (32, 33) for spatial coupling are connected to end parts of an optical fiber (31). A portion other than end sides of the optical fiber (31) is configured as a first structure, the end side portions of the optical fiber (31) are configured as second structures, the first structure has a smaller inter-mode propagation delay difference than the second structures, and the second structures have higher coupling efficiency than the first structure. For example, the first structure is configured such that the refractive index of the core has a dipped graded-index shape, and the second structures are configured such that the refractive index of the core has a dipless graded-index shape or a stepped index shape.
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Inventors:
MORITA HIROSHI (JP)
OYAMA YUSUKE (JP)
TOBA KAZUAKI (JP)
YAMAMOTO MASANARI (JP)
OYAMA YUSUKE (JP)
TOBA KAZUAKI (JP)
YAMAMOTO MASANARI (JP)
Application Number:
PCT/JP2023/007948
Publication Date:
October 12, 2023
Filing Date:
March 03, 2023
Export Citation:
Assignee:
SONY GROUP CORP (JP)
International Classes:
G02B6/02; G02B6/028; G02B6/036; G02B6/32; G02B6/42
Domestic Patent References:
| WO2020184094A1 | 2020-09-17 | |||
| WO2015125555A1 | 2015-08-27 | |||
| WO2005078970A1 | 2005-08-25 |
Foreign References:
| JP2005072737A | 2005-03-17 | |||
| JP2007165906A | 2007-06-28 | |||
| JP2017535810A | 2017-11-30 | |||
| JP2022502716A | 2022-01-11 | |||
| US20050265653A1 | 2005-12-01 |
Attorney, Agent or Firm:
MIYATA, Masaaki et al. (JP)
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