Y-BRANCH TYPE PHASE-CHANGE ALL-OPTICAL BOOLEAN LOGIC DEVICE AND ALL-BINARY LOGIC IMPLEMENTATION METHOD THEREFOR

Title:

Y-BRANCH TYPE PHASE-CHANGE ALL-OPTICAL BOOLEAN LOGIC DEVICE AND ALL-BINARY LOGIC IMPLEMENTATION METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2023/284089

Kind Code:

A1

Abstract:

Disclosed are a Y-branch type phase-change all-optical Boolean logic device and an all-binary logic implementation method therefor. The device comprises a waveguide of a Y-branch structure and phase change function units covered over the waveguide. In the logic implementation method, a light pulse having a large power is employed to perform a write operation on the phase change function unit, so that the phase change function unit is heated to generate a crystallized or non-crystallized phase change, thereby causing a difference in optical properties under two states; the state of the phase change function unit is read by employing a light pulse having a small power, and the state of a phase change material is not changed. By defining input logic signals respectively and defining three operation steps, an operation mode reconfigurable logic can be implemented, and full 16 binary Boolean logic calculations are implemented in a simple structure by means of step-by-step operation. In the present invention, 16 binary Boolean logic calculation functions are realized by means of an operation mode reconfigurable solution, thereby greatly improving working efficiency of logic calculation.

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Inventors:

CHENG XIAOMIN (CN)
HE ZHULI (CN)
ZHU YUNLAI (CN)
LI HAN (CN)
MIAO XIANGSHUI (CN)

Application Number:

PCT/CN2021/116821

Publication Date:

January 19, 2023

Filing Date:

September 07, 2021

Export Citation:

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Assignee:

UNIV HUAZHONG SCIENCE TECH (CN)

International Classes:

G02F3/00

Foreign References:

CN111684343A	2020-09-18
CN112180653A	2021-01-05
CN109814319A	2019-05-28
US20200081318A1	2020-03-12
KR20130085329A	2013-07-29

Attorney, Agent or Firm:

WUHAN HUAZHIYU INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)

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