All-optical photonic integrated neural networks: a first take (Conference Presentation)

Mario Miscuglio; Teo Ting Yu; Armin Mehrabian; Robert Simpson; Volker J. Sorger

doi:10.1117/12.2546930

9 March 2020 All-optical photonic integrated neural networks: a first take (Conference Presentation)

Mario Miscuglio, Teo Ting Yu, Armin Mehrabian, Robert Simpson, Volker J. Sorger

Proceedings Volume 11299, AI and Optical Data Sciences; 112990G (2020) https://doi.org/10.1117/12.2546930
Event: SPIE OPTO, 2020, San Francisco, California, United States

Abstract

If electro-optic conversion of current photonic NNs could be postponed until the very end of the network, then the execution time is simply the photon time-of-flight delay. Here we discuss a first design and performance of an all-optical perceptron and feed-forward NN. Key is the dual-purpose foundry-approved heterogeneous integration of phase-change-materials resulting in a) volatile nonlinear activation function (threshold) realized with ps-short optical pulses resulting in a non-equilibrium variation of the materials permittivity, and b) thermo-optically writing a non-volatile optical multi-cell (5-bit) memory for the NN weights after being (offline) trained. Once trained, the weights only required a rare update, thus saving power. Performance wise, such an integrated all-optical NN is capable of < fJ/MAC using experimental demonstrated pump-probe [Waldecker et al, Nat. Mat. 2015] with a delay per perceptron being ~ps [Miscuglio et al. Opt.Mat.Exp. 2018] has a high cascadability.

Conference Presentation

Citation Download Citation

Mario Miscuglio, Teo Ting Yu, Armin Mehrabian, Robert Simpson, and Volker J. Sorger "All-optical photonic integrated neural networks: a first take (Conference Presentation)", Proc. SPIE 11299, AI and Optical Data Sciences, 112990G (9 March 2020); https://doi.org/10.1117/12.2546930

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available