Title:
光信号処理装置
Document Type and Number:
Japanese Patent JP6701247
Kind Code:
B2
Abstract:
There is provided an optical signal processing device capable of RC in a complex space using optical intensity and phase information. An optical modulator controlled by an electric signal processing circuit modulates laser light, which is emitted from a laser light source, at a modulation period either or both of the intensity and phase values of the optical electric field. On the other hand, an input signal is also modulated by the optical modulator at a modulation period in the time domain so as to be an input signal. The converted input signal passes through an optical transmission path and enters an optical circulation circuit via an optical coupler. Part of the circulating light is branched into two by an optical coupler, and the branched light is converted into a complex intermediate signal at a coherent optical receiver. This complex intermediate signal demodulated at the coherent optical receiver is computed at an electric signal processing circuit, and thereby the operation as RC can be performed.
Inventors:
Mitsumasa Nakajima
Masanobu Inubushi
Ryuji Go
Toshikazu Hashimoto
Masanobu Inubushi
Ryuji Go
Toshikazu Hashimoto
Application Number:
JP2018033746A
Publication Date:
May 27, 2020
Filing Date:
February 27, 2018
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
G02F3/00; G02F1/35; G02F2/00; G06E3/00
Domestic Patent References:
| JP2018200391A |
Foreign References:
| WO2017102972A1 | ||||
| WO2011010469A1 |
Other References:
LARGER,Laurent, et al.,High-speed photonic reservoir computing using a time-delay-based architecture: Million words per sec,Physical review X,米国,APS,2017年 2月 6日,第7巻、第1号,第011015-1-011015-14頁
NAKAJIMA, Mitsumasa, et al.,Coherently driven ultrafast complex-valued photonic reservoir computing,2018 Conference on lasers and electro-optics,米国,IEEE,2018年 5月13日,SM1C.4
NAKAJIMA, Mitsumasa, et al.,Coherently driven ultrafast complex-valued photonic reservoir computing,2018 Conference on lasers and electro-optics,米国,IEEE,2018年 5月13日,SM1C.4
Attorney, Agent or Firm:
Patent Business Corporation Tani/Abe Patent Office