Video Experimental Relacionado
Updated: Sep 9, 2025
09:42
Fabrication and Characterization of High-Q Silicon Nitride Membrane Resonators
Published on: August 8, 2025
309
Modo de alto rendimiento (desmultiplexador) asistido con un resonador de microanillo en la plataforma de niobato de
Wenbing Jiang1,2, Jiang Qu1,2,3, Yu Guo1,2
1Wangzhijiang Innovation Center for Laser, Aerospace Laser Technology and System Department, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China.
Nanophotonics (Berlin, Germany)
|September 2, 2025
Resumen
Desarrollamos un nuevo modo en chip (de) multiplexador para moduladores acústico-ópticos integrados en un aislante de niobato de litio. Este dispositivo alcanza altas relaciones de extinción, cruciales para aplicaciones fotónicas avanzadas.
Área de la Ciencia:
- Fotónica y ingeniería óptica
- Ciencias de los materiales (Niobato de litio en aislante)
Sus antecedentes:
- Los desmultiplejadores de modo de alto índice de extinción son esenciales para la multiplexión por división de modo de alta capacidad y los moduladores acústico-ópticos en chip (AOM).
- Los actuales desmultiplejadores en modo en chip carecen de un rendimiento suficiente para los AOM integrados en la plataforma de niobato de litio en aislante (LNOI).
Objetivo del estudio:
- Proponer y demostrar un esquema innovador para el enrutamiento de señales de alto índice de extinción en la modulación acústo-óptica.
- Para hacer frente a las limitaciones de los actuales módulos de multiplejación en chip (de) para los AOM integrados en LNOI.
Principales métodos:
- Utilizó un desmultiplexador de dos modos combinado con un resonador de microrrido de pista de carreras de alta Q.
- Dispositivos integrados fabricados mediante litografía de haz de electrones en un solo paso y procesos de grabado en seco.
Principales resultados:
- El (des) multiplexador de dos modos logró una interferencia intermodal por debajo de -20 dB y una pérdida de inserción en el chip por debajo de 1,92 dB a través de 1514-1580 nm.
- El filtro de resonador de microrred aumentó la supresión de la señal portadora, lo que resultó en una relación de extinción medida superior a 30 dB.
Conclusiones:
- El dispositivo desarrollado ofrece una solución factible y compacta para AOM intermodales prácticos en LNOI.
- Esta tecnología permite avances en el procesamiento de información fotónica y cuántica, fotónica de microondas y aplicaciones LiDAR.
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