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Amplificador de guía de onda dopado con erbio y pentóxido de tántalo de área de modo grande con alta ganancia neta en
Optics letters
|January 15, 2026
Resumen
Desarrollamos un novedoso amplificador de guía de onda de pentóxido de tántalo dopado con erbio (Er3+: Ta2O5). Este dispositivo demuestra alta ganancia y potencia de salida, mostrando una gran promesa para sistemas fotónicos integrados.
Área de la Ciencia:
- Fotónica e Ingeniería Óptica
- Ciencia de Materiales
- Óptica Integrada
Sus antecedentes:
- Los materiales dopados con erbio son cruciales para los amplificadores ópticos.
- El pentóxido de tántalo (Ta2O5) ofrece un anfitrión prometedor para la ganancia óptica, pero existen desafíos de fabricación.
- Se necesitan guías de onda de área de modo grande (LMA) para dispositivos integrados de alta potencia.
Objetivo del estudio:
- Fabricar y caracterizar un amplificador de guía de onda LMA Er3+: Ta2O5 de alto rendimiento.
- Superar los desafíos de fabricación asociados con los materiales Er3+: Ta2O5.
- Demostrar el potencial de este amplificador para la amplificación óptica compacta, de alta salida y bajo ruido en chip.
Principales métodos:
- Fabricación del amplificador de guía de onda Er3+: Ta2O5 mediante grabado directo.
- Proceso de recocido para reducir la pérdida de propagación.
- Caracterización óptica que incluye mediciones de ganancia, potencia de salida y figura de ruido.
Principales resultados:
- Se logró una fuerte confinación óptica y una alta superposición bomba-señal ( >98.6%).
- Se demostró una alta mejora de señal en chip (hasta 38.1 dB) y ganancias netas (hasta 9.6 dB) en la banda C.
- Se confirmó una operación estable de alta potencia con una potencia de salida máxima de 2.4 mW y una figura de ruido mínima de 5.68 dB.
Conclusiones:
- El amplificador de guía de onda LMA Er3+: Ta2O5 desarrollado supera los desafíos de fabricación y valida el potencial de amplificación.
- El dispositivo exhibe un excelente rendimiento de amplificación de señal grande.
- Esta tecnología tiene una gran promesa para la amplificación óptica compacta, de alta salida y bajo ruido en chip en sistemas fotónicos integrados.
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