Title:
OPTICAL TRANSMITTER, OPTICAL TRANSMISSION SYSTEM, AND METHOD OF TRANSMITTING AN OPTICAL SIGNAL
Document Type and Number:
WIPO Patent Application WO/2021/161383
Kind Code:
A1
Abstract:
To carry out automatic bias control to an optical modulator without a dither signal with reduced cost, an optical transmitter comprises a light source configured to output a light, an optical first modulator configured to modulate the light and output a first modulated optical signal, a DC component detector configured to detect a DC component of the first modulated optical signal and a controller configured to apply a first specific bias voltage identified based on the DC component to the optical first modulator.
Inventors:
WU MINGQI (JP)
Application Number:
PCT/JP2020/005125
Publication Date:
August 19, 2021
Filing Date:
February 10, 2020
Export Citation:
Assignee:
NEC CORP (JP)
International Classes:
G02F1/01
Foreign References:
| JP2014032274A | 2014-02-20 | |||
| US20150270905A1 | 2015-09-24 | |||
| US20150207569A1 | 2015-07-23 |
Attorney, Agent or Firm:
SHIMOSAKA Naoki (JP)
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