Title:
NONLINEARITY MEASURING METHOD AND NONLINEARITY MEASURING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/207915
Kind Code:
A1
Abstract:
The present invention relates to a method and a device for measuring optical nonlinearity in an optical fiber being measured that is provided with a plurality of cores having mutually coupled waveguide modes. The method includes, at least: a preparation step of arranging a laser light source which emits laser light, and a detecting unit which obtains a light intensity; a light incidence step of causing the laser light to be incident on a specific core of the optical fiber being measured; a light detection step of obtaining the intensity of a specific wavelength component generated as a result of optical nonlinearity, from among reflected light components from the optical fiber being measured; and an analysis step of obtaining the optical nonlinearity of the optical fiber being measured, on the basis of the intensity of the specific wavelength component.
Inventors:
HASEGAWA TAKEMI (JP)
HAYASHI TETSUYA (JP)
HAYASHI TETSUYA (JP)
Application Number:
PCT/JP2018/018333
Publication Date:
November 15, 2018
Filing Date:
May 11, 2018
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
G01M11/02
Foreign References:
| JP2012202827A | 2012-10-22 | |||
| US6366347B1 | 2002-04-02 | |||
| JP2007101508A | 2007-04-19 |
Other References:
TETSUYA HAYASHI ET AL.: "Coupled-Core Multi-Core Fibers: High-Spatial-Density Optical Transmission Fibers with Low Differential Modal Properties", PROC. ECOC 2015, 2015
See also references of EP 3623789A4
See also references of EP 3623789A4
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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