光受信装置及び係数最適化方法 - Nippon Telegraph and Telephone Corporation

Title:

光受信装置及び係数最適化方法

Document Type and Number:

Japanese Patent JP7311744

Kind Code:

B2

Abstract:

An optical reception device includes a nonlinear optical compensation section which performs compensation of wavelength dispersion of a received signal obtained by receiving an optical signal according to a coherent detection method and compensation of a nonlinear optical effect of the received signal N (N is an integer of at least 1) step(s), and a coefficient update section which updates a coefficient so as to optimize the coefficient used in each step of the nonlinear optical compensation section based on a signal having been subjected to the compensation by the nonlinear optical compensation section and a predetermined training signal.

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Inventors:

Takeo Sasai
Fukutaro Hamaoka

Application Number:

JP2019039886A

Publication Date:

July 20, 2023

Filing Date:

March 05, 2019

Export Citation:

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Assignee:

Nippon Telegraph and Telephone Corporation

International Classes:

H04B10/2543; H04B10/077; H04B10/61

Domestic Patent References:

JP2010268404A
JP2009213069A
JP2016066958A
JP2017225024A
JP4759625B2
JP2019004228A

Foreign References:

WO2014167897A1
WO2015087494A1

Attorney, Agent or Firm:

Patent Attorney Shiga International Patent Office

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