Title:
CONTROL DEVICE AND CONTROL METHOD
Document Type and Number:
Japanese Patent JP2021125835
Kind Code:
A
Abstract:
To reduce the size of a bias control device such as a Mach-Zehnder modulator.SOLUTION: A control device 2 holds an output of a Mach-Zehnder type modulator or the like before and after changing a bias in first and second holding sections, and controls the bias based on a difference of the held outputs.SELECTED DRAWING: Figure 2
Inventors:
YAMAHATA TETSUJI
MORISHITA TAKESHI
MORISHITA TAKESHI
Application Number:
JP2020019439A
Publication Date:
August 30, 2021
Filing Date:
February 07, 2020
Export Citation:
Assignee:
FUJITSU OPTICAL COMPONENTS LTD
International Classes:
H04B10/516; G02F1/01
Attorney, Agent or Firm:
Kenji Doi
Hayashi Tsunetoku
Hayashi Tsunetoku