Title:
OPTICAL TRANSMISSION AND RECEPTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/261401
Kind Code:
A1
Abstract:
The present invention relates to an optical transmission and reception system which includes: an optical transmitter provided with an optical modulator which optically modulates a transmission signal to which a known signal is inserted at a prescribed interval and transmits the optically modulated signal to an optical transmission line; and an optical receiver provided with an optical RC circuit which transforms the optically modulated signal received from the optical transmission line into complex time-series signals, a photoelectric conversion element which converts the complex time-series signals into electric intensity signals, and a digital signal processing unit that performs learning by taking the known signal as a teacher signal and performs, on the basis of the learnt result, demodulation by using the electric intensity signals received from the photoelectric conversion element.
Inventors:
NAKAJIMA MITSUMASA (JP)
KONISHO SHIORI (JP)
HASHIMOTO TOSHIKAZU (JP)
KONISHO SHIORI (JP)
HASHIMOTO TOSHIKAZU (JP)
Application Number:
PCT/JP2019/025251
Publication Date:
December 30, 2020
Filing Date:
June 25, 2019
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H04B10/61
Foreign References:
| US20170116515A1 | 2017-04-27 | |||
| JP2019101635A | 2019-06-24 | |||
| JP2018200391A | 2018-12-20 |
Other References:
NAKAJIMA, MITSUMASA ET AL.: "Coherently Driven Ultrafast Complex-Valued Photonic Reservoir Computing", 2018 CONFERENCE ON LASERS AND ELECTRO- OPTICS (CLEO, 13 May 2018 (2018-05-13), pages 1 - 2, XP033381725
NGUIMDO, MODESTE ROMAIN ET AL.: "Reducing the phase sensitivity of laser -based optical reservoir computing systems", OPTICS EXPRESS, vol. 24, no. 2, 14 January 2016 (2016-01-14), pages 1238 - 1252, XP055424126, [retrieved on 20190903], DOI: https://doi.org/10.1364/0E.24.001238
LARGER, L. ET AL.: "Photonic information processing beyond Turing: an optoelectronic implementation of reservoir computing", OPTICS EXPRESS, vol. 20, no. 3, 27 January 2012 (2012-01-27), pages 3241 - 3249, XP055105625, [retrieved on 20190903], DOI: https://doi.org/10.1364/0E.20.00 3241
NGUIMDO, MODESTE ROMAIN ET AL.: "Reducing the phase sensitivity of laser -based optical reservoir computing systems", OPTICS EXPRESS, vol. 24, no. 2, 14 January 2016 (2016-01-14), pages 1238 - 1252, XP055424126, [retrieved on 20190903], DOI: https://doi.org/10.1364/0E.24.001238
LARGER, L. ET AL.: "Photonic information processing beyond Turing: an optoelectronic implementation of reservoir computing", OPTICS EXPRESS, vol. 20, no. 3, 27 January 2012 (2012-01-27), pages 3241 - 3249, XP055105625, [retrieved on 20190903], DOI: https://doi.org/10.1364/0E.20.00 3241
Attorney, Agent or Firm:
TANI & ABE, P.C. (JP)
Download PDF: