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Updated: Jan 8, 2026

An Improved Method for Collection of Cerebrospinal Fluid from Anesthetized Mice

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Published on: March 19, 2018

Un sintetizador de frecuencia óptica que utiliza fotónica integrada

Daryl T Spencer¹, Tara Drake², Travis C Briles^2,3

¹Time and Frequency Division, National Institute of Standards and Technology, Boulder, CO, USA. daryl.spencer@nist.gov.

|April 27, 2018

Resumen

Este resumen es generado por máquina.

Desarrollamos un sintetizador de frecuencia óptica compacto usando fotónica integrada. Este dispositivo controla con precisión la frecuencia de la luz, haciendo que las herramientas ópticas avanzadas sean más accesibles y asequibles.

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Área de la Ciencia:

La fotónica
La óptica cuántica
Metrología

Sus antecedentes:

Los sintetizadores de frecuencia óptica son cruciales para la ciencia avanzada, pero actualmente son grandes, hambrientos de energía y caros.
La fotónica integrada ofrece un camino para miniaturizar y reducir el costo de sistemas ópticos complejos.

Objetivo del estudio:

Desarrollar un sintetizador de frecuencia óptica compacto, de bajo costo y eficiente utilizando fotónica integrada.
Para demostrar un enlace de fase coherente de microondas a óptica en un microchip.

Principales métodos:

Se utilizó un láser sintonizable de silicio III-V integrado heterogéneamente.
Se emplean peines de frecuencia no lineales fabricados en chips de silicio.
El bombeo se logró utilizando láseres fuera del chip.

Principales resultados:

Se logra una salida de frecuencia láser programable a través de 4 THz cerca de 1550 nm con una resolución de 1 Hz.
Se ha demostrado una estabilidad de frecuencia excepcional con un error de síntesis de 7,7 × 10−15.
El sistema aprovecha la fotónica integrada para un enlace de fase coherente de microondas a óptica.

Conclusiones:

Este enfoque fotónico integrado reduce significativamente el tamaño, la potencia y el costo de los sintetizadores de frecuencia óptica.
La tecnología desarrollada permite una mayor adopción de fuentes de frecuencia óptica de alta precisión en diversas aplicaciones científicas y de metrología.
La fabricación de semiconductores en gran volumen puede facilitar el uso generalizado de estos dispositivos compactos.