Title:
POLARIZATION-FLUCTUATION ESTIMATING DEVICE AND POLARIZATION-FLUCTUATION ESTIMATING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/205786
Kind Code:
A1
Abstract:
In order to estimate a polarization fluctuation speed with high accuracy independently of the quality of a received signal, a polarization-fluctuation estimating device according to the present invention includes: a polarization separating unit that generates a single-polarization optical signal from an input polarization-multiplexed optical signal; a photoelectric converting unit that converts the generated optical signal into an electrical signal; and an estimation unit that estimates the polarization fluctuation speed of the polarization-multiplexed optical signal in accordance with the electrical signal.
Inventors:
SATO MASAKI (JP)
Application Number:
PCT/JP2021/008398
Publication Date:
October 14, 2021
Filing Date:
March 04, 2021
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
H04J14/06; G06N20/00; H04B10/079; H04B10/61
Domestic Patent References:
| WO2010026894A1 | 2010-03-11 | |||
| WO2020255809A1 | 2020-12-24 |
Foreign References:
| JP2009218646A | 2009-09-24 | |||
| JP2000048269A | 2000-02-18 |
Attorney, Agent or Firm:
SHIMOSAKA Naoki et al. (JP)
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