Title:
Optical transmitting machine
Document Type and Number:
Japanese Patent JP6261765
Kind Code:
B2
Abstract:
Provided is an optical transmitter (12) that can obtain stable light output even when control of switching between outputting a modulation signal input into at least one optical modulator of a plurality of cascade-connected optical modulators and stopping outputting the modulation signal is executed. The optical transmitter (12) includes an optical modulator (110) configured to modulate input light and outputs a light signal (110b), a drive unit (111a) configured to output a modulation data signal (110a) to the optical modulator (110), and a bias controller (114) configured to perform feedback control of bias voltage applied to the optical modulator (110). During a modulation OFF operation of the optical modulator (110), the bias controller (114) switches a control target point from a first control target point to a second control target point and executes the feedback control.
Inventors:
Hiroaki Shintaku
Kentaro Enoki
Kentaro Enoki
Application Number:
JP2016563350A
Publication Date:
January 17, 2018
Filing Date:
December 11, 2014
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H04B10/516; H04B10/075
Domestic Patent References:
| JP2008249848A | ||||
| JP2010243953A | ||||
| JP2008092172A | ||||
| JP2007208472A |
Attorney, Agent or Firm:
Minoru Maeda
Youichi Yamagata
Masahiko Shinohara
Youichi Yamagata
Masahiko Shinohara
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