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.
© 2001 Optical Society of America
(070.5010) Fourier optics and signal processing : Pattern recognition
(160.5320) Materials : Photorefractive materials
(200.4700) Optics in computing : Optical neural systems
(210.2860) Optical data storage : Holographic and volume memories
Yann Frauel, Gilles Pauliat, Andre éVilling, and Gérald Roosen, "High-Capacity Photorefractive Neural Network Implementing a Kohonen Topological Map," Appl. Opt. 40, 5162-5169 (2001)