Title:
DETERMINATION DEVICE, DETERMINATION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2023/157761
Kind Code:
A1
Abstract:
The present invention makes it possible to satisfactorily determine a mode ratio in collimated light in a double mode. A light intensity distribution acquisition unit acquires a light intensity distribution of collimated light that includes fundamental mode and primary mode components. A determination processing unit determines a mode ratio on the basis of the slope of a curve in a section of the light intensity distribution where the distance from a peak value of light intensity increases, on the side of the distribution where the peak value is present, centered on the optical axis of the collimated light. The present invention thereby makes it possible to satisfactorily determine the mode ratio in collimated light in a double mode, to pick out non-standard items without the use of expensive parts, and to ensure the communication quality of an optical communication system.
Inventors:
MORITA HIROSHI (JP)
TOBA KAZUAKI (JP)
YAMAMOTO MASANARI (JP)
TOBA KAZUAKI (JP)
YAMAMOTO MASANARI (JP)
Application Number:
PCT/JP2023/004510
Publication Date:
August 24, 2023
Filing Date:
February 10, 2023
Export Citation:
Assignee:
SONY GROUP CORP (JP)
International Classes:
G02B6/32; G01M11/02; G02B6/42
Domestic Patent References:
| WO2021095702A1 | 2021-05-20 | |||
| WO2018131700A1 | 2018-07-19 |
Foreign References:
| CN110926758A | 2020-03-27 | |||
| US5200795A | 1993-04-06 | |||
| CN111650688A | 2020-09-11 |
Attorney, Agent or Firm:
MIYATA, Masaaki et al. (JP)
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