Wunschll D C, Morris D J, McGann R L, Caudell T P
Appl Opt. 1993 Mar 10;32(8):1399-407. doi: 10.1364/AO.32.001399.
We describe a novel adaptive resonance theory (ART) device that is fully optical in the input-output processing path. This device is based on holographic information processing in a photorefractive crystal. This sets up an associative pattern retrieval in a resonating loop that uses angle-multiplexed reference beams for pattern classification. A reset mechanism is used to reject any given beam, permitting an ART search strategy. The design is similar to an existing nonlearning optical associative memory, but ours permits learning and makes use of information that the other device discards. It is a suitable response to the challenges of connectivity, learning, and reset presented by ART architectures. Furthermore, the design includes an efficient mechanism for area normalization of templates. It also permits the user to capitalize on the ability of ART networks to process large patterns. This new device is expected to offer higher information storage density than alternative ART implementations.
我们描述了一种新型自适应共振理论（ART）装置，其输入 - 输出处理路径完全是光学的。该装置基于光折变晶体中的全息信息处理。这在一个共振回路中建立了关联模式检索，该回路使用角度复用参考光束进行模式分类。一种复位机制用于拒绝任何给定光束，从而实现ART搜索策略。该设计类似于现有的非学习光学关联存储器，但我们的设计允许学习并利用另一装置丢弃的信息。它是对ART架构所呈现的连通性、学习和复位挑战的合适回应。此外，该设计包括一种用于模板面积归一化的有效机制。它还允许用户利用ART网络处理大型模式的能力。预计这种新装置将比其他ART实现方式提供更高的信息存储密度。
