Title:
OPTICAL TRANSMITTER AND TRANSMISSION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/186130
Kind Code:
A1
Abstract:
This optical transmitter comprises: a first optical phase modulator that phase-modulates output light from a first laser diode, on the basis of a first electrical signal inputted to a first electrical-signal input unit; a second optical phase modulator that phase-modulates output light from a second laser diode, on the basis of a second electrical signal inputted to a second electrical-signal input unit; 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 the output light from the optical multiplexer into a heterodyne detection signal; and an optical intensity modulator that modulates the intensity of output light from a third laser diode on the basis of the heterodyne detection signal outputted from the photodiode.
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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/JP2022/008272
Publication Date:
September 09, 2022
Filing Date:
February 28, 2022
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04B10/516
Foreign References:
| JP2006049977A | 2006-02-16 | |||
| JPH09214436A | 1997-08-15 | |||
| JPH1013354A | 1998-01-16 | |||
| JP2006287410A | 2006-10-19 | |||
| JPH09326769A | 1997-12-16 | |||
| JPH10126339A | 1998-05-15 |
Other References:
SHITABA, TOSHIAKI; TOMOAKI, YOSHIDA; JUN, TERADA: "Optical video transmission technique using FM conversion", IEICE TECHNICAL REPORT, DENSHI JOUHOU TSUUSHIN GAKKAI, JP, vol. 119, no. 323 (CS2019-84), 30 November 2019 (2019-11-30), JP , pages 97 - 101, XP009535311, ISSN: 0913-5685
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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