Title:
METHOD FOR ACQUIRING INFORMATION FOR MODE DISPERSION COMPENSATION, AND DEVICE
Document Type and Number:
Japanese Patent JP2023111427
Kind Code:
A
Abstract:
To provide a method for obtaining an optical processing condition, which can be corresponded to a high-speed signal, and can be corresponded to a transmission channel of which a mode scattering amount is large for compensating a mode scattering in a small calculation time and a small power consumption for a mode dispersion compensation.SOLUTION: A method for acquiring information for a mode dispersion compensation in order to obtain an optical processing condition for compensating a mode scattering in a mode division multiplex transmission using a multimode fiber, contains: an optical transmission step of transmitting an optical probe signal from a mode multiplexer in each mode of the first mode to Mth mode of the mode division multiplex transmission, and transmitting the multimode fiber; a frequency response measurement step of measuring a frequency response of a complex amplitude of the optical probe signal that has transferred the multimode fiber; and an information acquisition step for the mode dispersion compensation for acquiring the information for the mode dispersion compensation containing a group delay difference and a loss difference between the modes in the mode division multiplex transmission by using the frequency response of the complex amplitude of the first mode to the Mth mode.SELECTED DRAWING: Figure 2
Inventors:
GOTO YUTA
SHINADA SATOSHI
OKAMOTO ATSUSHI
SHINADA SATOSHI
OKAMOTO ATSUSHI
Application Number:
JP2022013280A
Publication Date:
August 10, 2023
Filing Date:
January 31, 2022
Export Citation:
Assignee:
NAT INST INF & COMM TECH
UNIV HOKKAIDO
UNIV HOKKAIDO
International Classes:
H04J14/04; H04B10/077; H04B10/2507
Attorney, Agent or Firm:
Takayuki Hirose
Daisuke Seki
Daisuke Seki