公开(公告)号：US20200379504A1

公开(公告)日：2020-12-03

申请号：US16986383

申请日：2020-08-06

Applicant: Massachusetts Institute of Technology

Inventor： Jacques Johannes CAROLAN ,  Mihika PRABHU ,  Scott A. SKIRLO ,  Yichen Shen ,  Marin SOLJACIC ,  DIRK ENGLUND ,  Nicholas Christopher HARRIS

IPC: G06E3/00 ,  G06N3/04 ,  G06N3/08 ,  G02F1/225 ,  G02F1/35 ,  G02F1/365 ,  G02F3/02 ,  G06N3/067

Abstract: An optical neural network is constructed based on photonic integrated circuits to perform neuromorphic computing. In the optical neural network, matrix multiplication is implemented using one or more optical interference units, which can apply an arbitrary weighting matrix multiplication to an array of input optical signals. Nonlinear activation is realized by an optical nonlinearity unit, which can be based on nonlinear optical effects, such as saturable absorption. These calculations are implemented optically, thereby resulting in high calculation speeds and low power consumption in the optical neural network.