Title:
光受信装置およびその制御方法
Document Type and Number:
Japanese Patent JP5246274
Kind Code:
B2
Abstract:
A light reception device includes: an interferometer that outputs a signal obtained by making an optical phase modulated signal interfere with a reference signal after shifting an optical phase of the optical phase modulated signal by a given amount; a light reception element that receives an output signal from the interferometer and converts the output signal into a light reception current; and a phase controller that controls a control amount in controlling the given amount so that a value of a function, which is calculated based on an amount relating to the light reception current and a change amount of an amount relating to the light reception current against the control amount, becomes an extreme value or 0.
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Inventors:
Koji Terada
Application Number:
JP2010548339A
Publication Date:
July 24, 2013
Filing Date:
January 30, 2009
Export Citation:
Assignee:
Fujitsu Optical Components Limited
International Classes:
H04B10/69; H04B10/60
Domestic Patent References:
| JP2007043638A | 2007-02-15 |
Foreign References:
| WO2007052380A1 | 2007-05-10 |
Attorney, Agent or Firm:
Shuhei Katayama