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Updated: Jan 8, 2026

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Fabrication and Characterization of High-Q Silicon Nitride Membrane Resonators
Published on: August 8, 2025
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Modelado bidireccional de la ganancia inducida por reflexión y la dinámica del ruido en amplificadores ópticos de
Optics express
|December 19, 2025
Resumen
Las reflexiones en los amplificadores ópticos de semiconductores (SOA) causan un ruido significativo. Un nuevo modelo bidireccional muestra cómo estas reflexiones, amplificadas por factores ambientales, degradan el rendimiento, lo que requiere un diseño cuidadoso del sistema.
Área de la Ciencia:
- Fotónica
- Física de dispositivos semiconductores
- Ingeniería óptica
Sus antecedentes:
- Las reflexiones en los amplificadores ópticos de semiconductores (SOAs) degradan el rendimiento en la fotónica de silicio.
- Los modelos existentes no logran capturar el ruido del acoplamiento bidireccional.
Objetivo del estudio:
- Desarrollar un modelo bidireccional autoconsistente para SOAs.
- Analizar el impacto de las reflexiones en la dinámica del ruido y la ganancia.
Principales métodos:
- Desarrollo de un modelo de propagación bidireccional.
- Inclusión de saturación de ganancia no lineal e interferencia sensible a la fase.
- Investigación del impacto de fuentes de ruido externas.
Principales resultados:
- El acoplamiento bidireccional aumenta significativamente el ruido de intensidad excesiva.
- Los niveles de ruido pueden aproximarse al piso de emisión espontánea amplificada (ASE).
- Reflexiones modestas combinadas con vibraciones/deriva amplifican el ruido.
Conclusiones:
- Un modelo bidireccional es crucial para comprender el ruido de los SOA.
- El ruido inducido por reflexión debe considerarse en sistemas integrados heterogéneamente III-V/Si.
- El modelo ayuda a optimizar los dispositivos fotónicos activos.
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