Towards scalable and autonomous Photonic Neural Networks


Towards scalable and autonomous Photonic Neural Networks

Wed, 08/03/2023 - 15:00 to 16:00


Dr Daniel Brunner
Institut FEMTO-ST

Dr Daniel Brunner from Institut FEMTO-ST, Université Bourgogne Franche-Comté (and a former HWU researcher) will give a seminar titled "Towards scalable and anonomous photonic neural networks" -- an abstract is below. The seminar will take place in DB114 at 3pm on Wednesday 8th March, and will be followed by coffee and biscuits.

Neural network (NN) concepts revolutionize computing by solving challenges previously thought to be reserved to the abstract intelligence of humans. However, the astonishing and substantial conceptual breakthroughs are so far not mirrored by advances in integrated hardware specialized in physically implementing NNs. As always with computing, scalability is the key metric. Integrated photonic architectures have the potential to revolutionize energy consumption and speed. However, conventional 2D lithography strongly limits the size of integrated NNs due to fundamental scaling laws. We want to overcome this problem by using 3D printed photonic integration, where photonic waveguides realizing a NN’s connections. Finally, for maximal efficiency, the largest fraction of a NN’s hardware should be dedicated to the core computational task, while auxiliary infrastructure should be pushed into the background. I will demonstrate a fully autonomous photonic NN based on a high-dimensional semiconductor laser that implements a scalable photonic NN fully in parallel and with minimal support by a classical digital computer.


Daniel Brunner is a CNRS researcher with the FEMTO-ST, France. His interests include novel computing using quantum or nonlinear substrates with a focuses on photonic neural networks. He was received several University and the IOP’s 2010 Roys prize, the IOP Journal Of Physics: Photonics emerging leader 2021 prize as well as the CNRS Bronze medal in 2022. He edited one Book and two special issues, has presented his results 45+ times upon invitation, has published 50+ scientific articles, has been awarded a prestigious ERC Consolidator grant and is a polit of the French PEPR Electronique project of the France 2030 initiative.