High-capacity photorefractive neural network implementing a Kohonen topological map

Yann Frauel (1) , Gilles Pauliat (1) , André Villing (1) , Gérald Roosen (1)

1 Laboratoire Charles Fabry de l'Institut d'Optique / Manolia

We designed and built a high-capacity neural network based on volume holographic interconnections in a photorefractive crystal. We used this system to implement a Kohonen topological map. We describe and justify our optical setup and present some experimental results of self-organization in the Learning database.

Domains: Physics [physics]; Physics [physics]; Optics [physics.optics]

Yann Frauel, Gilles Pauliat, André Villing, Gérald Roosen. High-capacity photorefractive neural network implementing a Kohonen topological map. Applied optics, 2001, 40 (29), pp.5162-5169. ⟨hal-00856146⟩