Title:
LIGHT MODULATING DEVICE AND LIGHT MODULATING METHOD
Document Type and Number:
Japanese Patent JP2012083499
Kind Code:
A
Abstract:
To suppress degrading of power of a light signal output from a modulation unit even when a semiconductor is used as a material of the modulation unit.
A light modulation device includes a modulation unit for modulating input light by using an input signal, a correction unit for correcting a phase of signal light obtained by modulating the input light by the modulation unit based on an input current, a detection unit for detecting a phase difference between the signal light corrected by the correction unit and the input signal input to the modulation unit, and an adjusting unit for adjusting the input current to be input to the correction unit based on the phase difference detected by the detection unit.
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Inventors:
MORISHITA TAKESHI
Application Number:
JP2010229034A
Publication Date:
April 26, 2012
Filing Date:
October 08, 2010
Export Citation:
Assignee:
FUJITSU OPTICAL COMPONENTS LTD
International Classes:
G02F1/015
Domestic Patent References:
| JP2007082094A | 2007-03-29 | |||
| JP2008172714A | 2008-07-24 | |||
| JPH0961766A | 1997-03-07 |
Attorney, Agent or Firm:
Hiroaki Sakai