Is a
Patent attributes
Patent Applicant
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shuichi Yasuda0
Date of Patent
April 28, 2015
Patent Application Number
13661606
Date Filed
October 26, 2012
Patent Citations Received
Patent Primary Examiner
Patent abstract
After a startup of an optical transmitter, a control is started in such a way that a modulation amplitude of a driving signal of a phase modulator is set as 0, and that an operational point of a bias voltage is set as the lowest point of light transmission characteristics of the phase modulator. When the operational point of the bias voltage reaches the lowest point, the modulation amplitude of the driving signal is gradually increased from 0 to 2Vπ.
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