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Mapeo de peso escaso y estrategia de reutilización de computación para la multiplicación de matriz fotónica escalable
Optics express
|February 20, 2026
Resumen
Este estudio introduce una nueva estrategia de mapeo de peso para matrices transversales fotónicas de material de cambio de fase. Este enfoque mejora la eficiencia computacional para la multiplicación de matrices a gran escala, superando las limitaciones de pérdida óptica en la computación fotónica.
Área de la Ciencia:
- La fotónica es la fotónica.
- La computación óptica es la computación óptica.
- Ciencia de los materiales Ciencia de los materiales.
Sus antecedentes:
- Las matrices transversales fotónicas que utilizan materiales de cambio de fase (PCM) ofrecen una alta densidad de integración para la multiplicación de matrices fotónicas paralelas.
- La escalabilidad de estas matrices se ve obstaculizada por la pérdida de transmisión óptica, lo que limita las aplicaciones prácticas a gran escala.
Objetivo del estudio:
- Proponer y validar una estrategia de mapeo de peso para la ejecución eficiente de cálculos convolucionales más grandes dentro de matrices de barras transversales fotónicas limitadas en escala.
- Para abordar las limitaciones de escalabilidad impuestas por la pérdida de transmisión óptica en la multiplicación de matrices fotónicas.
Principales métodos:
- Fabricación de una matriz de barra transversal fotónica 4x4 de alta calidad con modulación de precisión de 3 bits.
- Desarrollo y aplicación de una nueva estrategia de mapeo de peso para codificar operadores convolucionales.
- Integración de la estrategia en una red neuronal convolucional fotónica para tareas de procesamiento de imágenes.
Principales resultados:
- La estrategia de mapeo permitió la ejecución eficiente de cuatro operadores 3x3 diferentes en la matriz 4x4, lo que produjo una mejora del 225% en la eficiencia computacional para una tarea de detección de bordes.
- Una red neuronal convolucional fotónica que utiliza esta estrategia logró una precisión de clasificación del 96,7% en el conjunto de datos del MNIST, lo que coincide con la precisión simulada del 96,84%.
Conclusiones:
- La estrategia de mapeo de peso propuesta supera efectivamente las limitaciones de hardware en las matrices transversales fotónicas de escala limitada.
- Este trabajo avanza en el desarrollo de la multiplicación de matrices fotónicas a gran escala y la computación fotónica al permitir una computación eficiente bajo limitaciones de hardware.
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