Publication: Diseño e implementación del controlador de un diodo láser para transmitir datos Ethernet a velocidades de Gigabit-s sobre fibra óptica de plástico
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2014-10
Defense date
2014-10-08
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Abstract
El presente Proyecto de Fin de Carrera, titulado “Diseño e implementación del
controlador de un diodo láser para transmitir datos Ethernet a velocidades de Gigabits/s
sobre fibra óptica de plástico”, desarrollado en la Universidad Carlos III de Madrid, bajo
supervisión del profesor Plinio Jesús Pinzón Castillo, tiene como finalidad el diseño y la
posterior implementación de la electrónica necesaria para convertir datos, a
velocidades de 1 Gbit/s, en las corrientes de polarización y modulación de un diodo
láser a 650 nm, para su transmisión sobre un enlace de fibra óptica de plástico (POF).
Para el diseño del circuito esquemático se usará el programa de diseño asistido por
ordenador OrCad Capture y posteriormente se realizará el diseño de la PCB (placa de
circuito impreso) haciendo uso de OrCadLayout en base a toda la información
recopilada anteriormente.
El desarrollo de la memoria se presenta dividido en un total de 6 capítulos, en primer
lugar se hace toda la explicación teórica y posteriormente la validación del circuito.
En el primer capítulo, titulado “Introducción”, se encuentran todos los fundamentos
teóricos necesarios para el diseño del circuito impreso. Aparece una introducción a los
diodos, así como la clasificación de los materiales y los tipos de diodos existentes en el
mercado, conceptos generales de las comunicaciones por fibra óptica haciendo
hincapié en las SI-POF, nombrando sus ventajas, desventajas y aplicaciones,
fundamentos básicos de la operación del diodo láser y de los circuitos driver. Y por
último generalidades sobre el diseño de circuitos impresos.
En el segundo capítulo se justifica elporqué se decide la realización de este
proyecto.
A continuación, en el tercer capítulo se definen los objetivos fundamentales a
conseguir tras finalizar el diseño.
En el cuarto capítulo, el más extenso e importante de todos, dónde se centra
principalmente todo el estudio, es llamado “Memoria”. En él se explican de forma
detallada todo el proceso e implementación del circuito, con las herramientas OrCad
Captura y OrCad Capture CIS,asícomo todos los cálculos necesarios. Para finalizar el
capítulo se muestran los resultados obtenidos.
El quinto capítulo expone los costes económicos del desarrollo del proyecto teniendo
en cuenta tanto los materiales como el proceso de fabricación.
El sexto capítulo es dedicado a las conclusiones obtenidas una vez finalizado el
Trabajo Fin de Grado y las posibles mejoras y trabajos futuros partiendo del resultado
final.
This Thesis Project entitled "Design and implementation of a laser diode driver to transmit data at speeds of Ethernet Gigabit / s over plastic optical fiber", developed at the University Carlos III of Madrid, under supervision of Prof. Plinio Jesus Castillo Pinzón, aims to design and subsequent implementation of the electronics required to convert data at speeds of 1 Gbit / s in the bias currents and modulation of a laser diode at 650 nm for transmission over a link plastic optical fiber (POF). To design the schematic circuit will be used OrCad Capture CIS and then the design of the PCB will be performed using OrCad Layout based on all the information collected previously. The development of the memory is divided into 6 chapters, starting with the theoretical explanation and later, the validation of the final circuit is presented. In first chapter, entitled "Introduction", are all necessary theoretical fundaments for the design of printed circuit boards. An introduction to the diodes, and the classification of materials and the types of diodes in the market, general concepts of fiber optic communications doing emphasis on SI-POF, speaking about advantages, disadvantages and applications. Also appears basics operation of the laser diode and the driver circuits. Finally an overview of the design of printed circuit boards. In chapter 2, is the justification of why this project is made. Then, in the third chapter are defined the fundamentals objectives to achieve after finish the Thesis. Chapter 4 is the largest and the most important one, is called “Memory”, and explains in detail the process and implementation of the circuit, with the programs of CADOrCad Capture CIS and OrCad Layout, as well as all the necessary calculations. At the end, the results obtained are shown. The fifth chapter represents the economic costs considering the materials and the manufacturing process. Chapter 6 is dedicated to the conclusions obtained at the end of the Bachelor Thesis, possible improvements and future works based of the final results.
This Thesis Project entitled "Design and implementation of a laser diode driver to transmit data at speeds of Ethernet Gigabit / s over plastic optical fiber", developed at the University Carlos III of Madrid, under supervision of Prof. Plinio Jesus Castillo Pinzón, aims to design and subsequent implementation of the electronics required to convert data at speeds of 1 Gbit / s in the bias currents and modulation of a laser diode at 650 nm for transmission over a link plastic optical fiber (POF). To design the schematic circuit will be used OrCad Capture CIS and then the design of the PCB will be performed using OrCad Layout based on all the information collected previously. The development of the memory is divided into 6 chapters, starting with the theoretical explanation and later, the validation of the final circuit is presented. In first chapter, entitled "Introduction", are all necessary theoretical fundaments for the design of printed circuit boards. An introduction to the diodes, and the classification of materials and the types of diodes in the market, general concepts of fiber optic communications doing emphasis on SI-POF, speaking about advantages, disadvantages and applications. Also appears basics operation of the laser diode and the driver circuits. Finally an overview of the design of printed circuit boards. In chapter 2, is the justification of why this project is made. Then, in the third chapter are defined the fundamentals objectives to achieve after finish the Thesis. Chapter 4 is the largest and the most important one, is called “Memory”, and explains in detail the process and implementation of the circuit, with the programs of CADOrCad Capture CIS and OrCad Layout, as well as all the necessary calculations. At the end, the results obtained are shown. The fifth chapter represents the economic costs considering the materials and the manufacturing process. Chapter 6 is dedicated to the conclusions obtained at the end of the Bachelor Thesis, possible improvements and future works based of the final results.
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Keywords
OrCad, Circuitos lógicos, Fibras ópticas, Diodos láser