Title:
OPTICAL TRANSMISSION DEVICE AND TRANSMISSION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/185400
Kind Code:
A1
Abstract:
This optical transmission device comprises: a first optical phase modulator that, on the basis of a first electric signal inputted to a first electric signal input unit, phase-modulates output light from a first laser diode; a second optical phase modulator that, on the basis of a second electric signal inputted to a second electric signal input unit, phase-modulates output light from a second laser diode; an optical multiplexer that multiplexes the output light from the first optical phase modulator and the output light from the second optical phase modulator; a photodiode that converts output light from the optical multiplexer into a heterodyne detection signal; and an optical intensity modulator that, on the basis of the heterodyne detection signal outputted from the photodiode, intensity-modulates output light from a third laser diode.
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Inventors:
FUKADA YOICHI (JP)
SHITABA TOSHIAKI (JP)
TANABE AKIHIRO (JP)
MIYATAKE RYO (JP)
YOSHIDA TOMOAKI (JP)
SHITABA TOSHIAKI (JP)
TANABE AKIHIRO (JP)
MIYATAKE RYO (JP)
YOSHIDA TOMOAKI (JP)
Application Number:
PCT/JP2021/007862
Publication Date:
September 09, 2022
Filing Date:
March 02, 2021
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04B10/50; G02F1/01
Foreign References:
| JP2006049977A | 2006-02-16 | |||
| JP2000354010A | 2000-12-19 | |||
| JPH09101548A | 1997-04-15 | |||
| JP2006276095A | 2006-10-12 | |||
| JP2006262452A | 2006-09-28 | |||
| JP2006287410A | 2006-10-19 |
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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