Fig. 16
Various integrated optical components for constructing on-chip ONNs. a Incoherent optical scattering unit and optical stochastic matrix129. b Three-dimensional interconnect waveguides of constructing ONNs128. c Architecture and implementation diagram of the ONN chip134. d Data architecture and working principle of a photonic tensor core138. a Reproduced from ref. 129 with the permission of Science China Press Publishing. b Reproduced with the permission from ref. 128 from © Optical Society of America. c Reproduced from ref. 134 with permission of Springer Nature: Nature. d Reproduced from ref. 138 with permission of Springer Nature: Nature Photonics
