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Sistemas fotónicos de silicio impulsados por microcombas

Haowen Shu1, Lin Chang2, Yuansheng Tao1

  • 1State Key Laboratory of Advanced Optical Communications System and Networks, School of Electronics, Peking University, Beijing, China.

Nature
|May 18, 2022
PubMed
Resumen
Este resumen es generado por máquina.

Los investigadores integraron microcombas con fotónica de silicio para crear sistemas ópticos compactos y de alto rendimiento. Esta sinergia permite aplicaciones avanzadas a escala de chip en la transmisión de datos y la fotónica de microondas.

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Área de la Ciencia:

  • La fotónica
  • Óptica integrada
  • Ciencias de los materiales

Sus antecedentes:

  • Las microcombas ofrecen amplias aplicaciones, pero requieren configuraciones voluminosas e intensivas en energía.
  • La fotónica de silicio (SiPh) proporciona soluciones escalables y de bajo costo, pero carece de fuentes de luz paralelas.
  • Los sistemas existentes se enfrentan a limitaciones en cuanto a miniaturización y eficiencia energética.

Objetivo del estudio:

  • Combinar la tecnología de microcomb con fotónica de silicio para sistemas mejorados a escala de chip.
  • Desarrollar dispositivos fotónicos integrados eficientes desde el punto de vista energético y sencillos desde el punto de vista operativo.
  • Demostrar nuevas aplicaciones en la transmisión óptica de datos y la fotónica de microondas.

Principales métodos:

  • Utilizó una fuente de microcomb con aluminio y arseniuro de galio en el aislante.
  • Conducía motores fotónicos de silicio de metal-óxido-semiconductor complementarios.
  • Implementó un esquema de modulación de cuatro niveles de amplitud de pulso para la transmisión de datos.
  • Se empleó un enfoque de extensión de tiempo para la construcción de filtros fotónicos de microondas.

Principales resultados:

  • Demostró un enlace fotónico integrado basado en microcomb con una velocidad agregada de 2 terabits por segundo.
  • Construido un filtro fotónico de microondas altamente reconfigurable e integrado.
  • Logrado una sinergia entre microcombs y SiPh para la próxima generación de sistemas fotónicos.

Conclusiones:

  • La integración de microcombs y SiPh representa un avance significativo en los sistemas fotónicos miniaturizados.
  • Este enfoque supera las limitaciones de las tecnologías individuales, allanando el camino para soluciones fotónicas totalmente integradas.
  • Permite dispositivos a escala de chip de próxima generación para datos de alta velocidad y procesamiento avanzado de señales.