Title:
STRAIGHT WAVEGUIDE PHASE CHANGE ALL-OPTICAL BOOLEAN LOGIC DEVICE AND FULL BINARY LOGIC IMPLEMENTATION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/283981
Kind Code:
A1
Abstract:
A straight waveguide phase change all-optical Boolean logic device and a full binary logic implementation method thereof. The device comprises a straight waveguide structure, a phase change functional unit (M1, M2) covering above a waveguide, a protection layer thereof, and a waveguide Bragg grating structure. The logic implementation method comprises using an optical pulse to input from two ends of the device, respectively, modulating the state of the phase change functional unit (M1, M2): setting parameters of the waveguide Bragg grating structure to reflect the wavelength of a pump light pulse, so that the write pulses input from the two ends act on only the phase change functional unit (M1, M2) closest to a port, and selecting a detection light pulse having a specific wavelength. The detection light at this wavelength is less reflected by waveguide Bragg gratings and does not affect the reading of the state of the device. The device has the advantages of anti-electromagnetic interference, parallel operation, etc., 16 binary Boolean logic calculation functions are realized, and the working efficiency of logic calculation is greatly improved.
Inventors:
CHENG XIAOMIN (CN)
HE ZHULI (CN)
ZHU YUNLAI (CN)
LI HAN (CN)
MIAO XIANGSHUI (CN)
HE ZHULI (CN)
ZHU YUNLAI (CN)
LI HAN (CN)
MIAO XIANGSHUI (CN)
Application Number:
PCT/CN2021/107752
Publication Date:
January 19, 2023
Filing Date:
July 22, 2021
Export Citation:
Assignee:
UNIV HUAZHONG SCIENCE TECH (CN)
International Classes:
G02F3/00
Foreign References:
| CN111684343A | 2020-09-18 | |||
| CN109655975A | 2019-04-19 | |||
| CN112649999A | 2021-04-13 | |||
| CN112713242A | 2021-04-27 | |||
| JP2009128718A | 2009-06-11 |
Attorney, Agent or Firm:
WUHAN HUAZHIYU INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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