OPTICAL COMPUTING ELEMENT AND MULTI-LAYER NEURAL NETWORK

Title:

OPTICAL COMPUTING ELEMENT AND MULTI-LAYER NEURAL NETWORK

Document Type and Number:

WIPO Patent Application WO/2020/240623

Kind Code:

A1

Abstract:

Provided is an optical computing element facilitating bias term adjustment. The optical computing element comprises: a first photo-deformable member 30 that deforms in accordance with the intensity of incident light A; a first deformable lid 40 that is connected to the first photo-deformable member 30 and deformed by the first photo-deformable member 30; a refractive index-matching material 60 that matches a refractive index to allow external light B, which is externally introduced light, to pass therethrough; a matching material reservoir 50 that is covered with the first deformable lid 40 and filled with the refractive index-matching material 60; a passage 70 that guides the refractive index-matching material from the matching material reservoir 50 and has an open tip end; a first optical waveguide 80a that is tilted relative to the passage 70 and allows the external light B to pass therethrough; a second optical waveguide 80b that is arranged on the extension line of the first optical waveguide 80a with the passage 70 interposed therebetween and outputs the external light B that enters thereinto after passing through the passage 70; a second photo-deformable member 31 that deforms in accordance with the intensity of bias adjustment light D; and a bias-adjustment liquid reservoir 61 that is connected to the matching material reservoir 50 through a connection passage 90 and filled with the refractive index-matching material 60.

Inventors:

OTSUKA TAKUYA (JP)
TSUDA MASAYUKI (JP)

Application Number:

PCT/JP2019/020696

Publication Date:

December 03, 2020

Filing Date:

May 24, 2019

Export Citation:

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Assignee:

NIPPON TELEGRAPH & TELEPHONE (JP)

International Classes:

G02F3/00; G02B26/08; G06E3/00; G06N3/067

Domestic Patent References:

WO2002069016A2

2002-09-06

Foreign References:

JPH09159943A	1997-06-20
JPH05303048A	1993-11-16
JPS542146A	1979-01-09
JP2003161895A	2003-06-06
JP2019101887A	2019-06-24

Other References:

OTSUKA, TAKUYA ET AL. ET AL.: "Study of Neuron Elements for DNNs Passively Operated Using External Light", PROCEEDINGS OF 2018 IEICE GENERAL CONFERENCE (COMMUNICATION 2), 6 March 2018 (2018-03-06)