Diferencia entre el proceso OVPO y el proceso MCVD

OVPO y MCVD representan la oxidación de fase de vapor externo y la deposición de vapor químico modificado respectivamente. Tanto los procesos OVPO como MCVD son procesos de fabricación de fibra que se utilizan para construir y producir fibras ópticas. Las fibras ópticas utilizan la tecnología de la luz y se fabrican como hilos para transferir datos.

Proceso OVPO vs Proceso MCVD

La principal diferencia entre el proceso OVPO y el proceso MCVD es que el proceso OVPO utiliza un mandril o una barra de cebo en la que el hollín es una mezcla de químicos haluros vapores. Por otro lado, el proceso MCVD utiliza un tubo de sustrato complejo sin una varilla en la que se produce la formación de hollín.

El proceso OVPO es uno de los métodos iniciales que se utilizan para la fabricación de fibras ópticas. En este proceso, se usa un quemador transversal para calentar una varilla de cebo que consiste en vapores de haluro metálico y material de vidrio, por otro lado. Fue un proceso ocupado e inconveniente.

El proceso

MCVD es una versión modificada para la fabricación de fibras ópticas. Utiliza un quemador transversal que puede moverse hacia cualquier lado para proporcionar calor a un tubo de sustrato de vapores de haluro metálico. También implica que la mezcla de gases pase a través del tubo y finalmente se agote después de un calentamiento suficiente.

Tabla de comparación entre el proceso OVPO y el proceso MCVD

Parámetros de comparación Proceso OVPO <TAG1 fibras ópticas de índice graduado de baja pérdida. Deposición El proceso OVPO hace la deposición de capa del contenido fuera de la fibra. El proceso MCVD hace deposición de capa dentro de la fibra óptica. El método Chemical ReactionOVPO utiliza la reacción de hidrólisis química a través de la llama. El proceso MCVD utiliza la reacción de dimensión de vapor para la fabricación. El método StepsOVPO tiene cuatro pasos básicos de deposición de hollín, su preforma, realizar sinterización, y dibujo de fibra. El método MCVD es muy conveniente y lo suficientemente rápido con pequeños pasos. Influencia El proceso OVPO para fabricar fibras ópticas se utilizó en las etapas iniciales y es difícil. El proceso MCVD es modificado método que tiene varias ventajas para la conveniencia.

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¿Qué es el proceso OVPO?

El proceso

OVPO se abrevia como método de oxidación de fase de vapor externo y es uno de los cuatro métodos utilizados para la fabricación de fibras ópticas. Las fibras ópticas se fabrican a través de este proceso. Sin embargo, es un proceso estricto y difícil, pero es un método muy popular que tiene una gran influencia en las etapas iniciales de desarrollo de la tecnología a través de fibras ópticas.

Cuando el proceso se implementó inicialmente, se descubrió que el método OVPO tiene menos de 20 decibeles de pérdida de datos por kilómetro dentro de la fibra. Los conceptos básicos del proceso OVPO son simples y directos, aunque duros y muy estrictos. Requiere una mezcla de compuestos de dióxido de silicio. Estas partículas compuestas se llaman juntas hollín. Hay un quemador de llama transversal utilizado en el proceso que puede mover y calentar una barra de cebo que se llama Mandel.

Esta barra tiene la deposición del hollín a través del calor de la llama. Una vez que comienza la deposición, el hollín se incrementa sustancialmente capa por capa en el Mandel de cerámica. Luego, se introducen vapores de haluro de vidrio para formar el núcleo y el revestimiento de la fibra óptica. A aproximadamente 1400 grados Celsius de temperatura, las fibras ópticas se fabrican quitando la varilla de vidrio.

¿Qué es el proceso MCVD?

El proceso

MCVD se abrevia como proceso de deposición química de vapor modificada. A menudo se considera como un método más conveniente. Esto se debe a que el método MCVD es una versión más modificada de los procesos normales para la fabricación de fibras ópticas. MCVD es un proceso más ventajoso para fabricar fibras ópticas de índice graduado de muy baja pérdida.

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Este proceso tiene una estructura más compleja. Implica un tubo de sustrato que está formado por sílice de vidrio y un quemador transversal para poner la llama en regiones suficientes del tubo de sustrato. Además de la mezcla de hollín de compuestos de dióxido de silicio, también se pasa una mezcla de gases dentro del tubo del sustrato con la presencia de partículas de hollín. Estos se agotan fuera del tubo en un momento adecuado. Del mismo modo, el tubo de sustrato también tiene la capacidad de girar como la barra de cebo.

La mezcla de gases introducida en el tubo es una mezcla de gases de haluro de vapor para reaccionar con el hollín. Ahora el hollín se sinteriza en la varilla de vidrio usando una antorcha de oxihidrógeno. Cuando la varilla de vidrio se vuelve lo suficientemente suficiente como para fabricar fibras ópticas, el flujo de vapor y la deposición del traje se detienen manualmente y se usa una temperatura alta con la varilla de vidrio para fabricar fibra.

Diferencias principales entre el proceso OVPO y el proceso MCVD

  1. El proceso OVPO utiliza los gases de haluro de vidrio solo para formar el núcleo y el revestimiento de la fibra. Por otro lado, el proceso MCVD utiliza el núcleo como vapor de haluro de gas y revestimiento como material del hollín.
  2. El método

  3. OVPO no implica el uso de llama de oxicrógeno para el hollín de sinterización sobre la varilla de vidrio. Por otro lado, el proceso MCVD utiliza.
  4. El proceso OVPO utiliza hollín como dióxido de silicio. Por otro lado, el proceso MCVD también puede hacer uso de fósforo o material de germanio.
  5. El proceso

  6. OVPO utiliza una temperatura de 1400 grados centígrados. Por otro lado, el proceso MCVD usa solo 250 grados centígrados.
  7. El método OVPO tiene una reacción de hidrólisis de llama. Por otro lado, el método MCVD utiliza una reacción de deposición de vapor.
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Síntesis

Dado que los procesos OVPO y MCVD se utilizan para fabricar fibras ópticas, ambos tienen su encanto y términos de uso. El método de fabricación MCVD es más conveniente y se usa eficientemente en estos días. Esto se debe a que el proceso MCVD usa una temperatura significativamente baja y arroja fibra de índice graduado de baja pérdida.

En este aspecto, el proceso OVPO no puede igualar la calidad de la fibra del proceso MCVD. Sin embargo, la reacción y el contenido utilizados en el proceso MCVD son más complejos que el proceso OVPO. El proceso OVPO sigue siendo muy popular debido a su implementación inicial para fabricar fibras ópticas.

  1. https://allwise.yonsei.ac.kr/pdpl/subdir/equipments/paper/mcvd_01131071.pdf
  2. https://ieeexplore.ieee.org/abstract/document/1456096/

Contenido

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