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OPTICAL FIBER

DAHAN, ARTIGUE : ENGLISH PRESENTATION
by

ENGEA ENGEA

on 24 March 2015

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Transcript of OPTICAL FIBER

Optical fiber
DAHAN Antoine
ARTIGUE Bruno

ENGEA 2013-2016

Summary


1. History

2. Working of the optical fiber
Theory
Various handing mode and kind of fiber
Transmission / Receipt

3. Industrial technology and Apps

4. Application in public domain

5. Future ?

How does this ubiquitous technology work ?
What are its main applications ?
Is it a technology that has a bright future ?

1. History
2. Working 3. Industrial Technology and Application 4 . Application to the public domain 5. Future ?
1. Theory :
1. History


2. Working
3. Industrial Technology and Application 4 . Application to the public domain 5. Future ?
Waveguide that exploits the properties of light refracting to transmit data

An optical fiber is often described by two parameters:

The refractive index

Numerical aperture

Complete refraction = no losses
1957
1970

1980-1991
1973
1880
1840

First fiber optic bundle
1957
Discovery and production of the first single-mode fiber
1970
Establishment of an industrial mode of manufacturing
1973
Industrial use
1980-1991
Using optic fiber by telecom companies

Creation of high speed internet
discover the refraction properties
1840
First phone network based on fiber
1880
Jacques BABINET
1794-1872
Alexander Graham Bell
1847-1922
Larry Curtiss

Endoscope

Medical Application
Turning point

Process in a modified vapor

Process still used
1. History


2. Working
3. Industrial Technology and Application 4 . Application to the public domain 5. Future ?
1. History


2. Working
3. Industrial Technology and Application 4 . Application to the public domain 5. Future ?
1. History


2. Working
3. Industrial Technology and Application 4 . Application to the public domain 5. Future ?
1. History


2. Working
3. Industrial Technology and Application

4 . Application to the public domain 5. Future ?
1. History

2. Working 3. Industrial Technology and Application
4 . Application to the public domain
5. Future ?
1. History



2. Working

3. Industrial Technology and Application 4 . Application to the public domain
5. Future ?

Conclusion

How does this ubiquitous technology work ?
A very simple technology which uses only two main
equations

What are its main applications ?
A lot of applications in several domains (industrial, public, medical, ...)

Is it a technology that has a bright future ?
Obviously, the optical fiber will replace the copper support
for communication

What are its main qualities ?
Speed data transmission, less losses, weight, ...

MAIN PUBLIC
USE
Sensors
Lighting
Decoration





Road signs
Roundabout
Pedestrian crossing
DATA TRANSMISSION
Reducing cable section

10 times more data than 250 pairs
of copper wires

Less losses

Significantly improved flow rate

Internet / Phone / TV
Is it a technology that has a bright future ?
Absolutely YES !
Main benefits
Speed transmission
Resistance to electromagnetic interference
Simplicity and cost of manufacturing
Weight
3 Optical
fiber Type
Graded index fiber
A multimode technology
Single mode fiber
Step index fiber
A multimode technology
System

Step index fiber


Graded index fiber


Single mode fiber


Benefit

Low price/ Ease manufacturing

Large bandwidth and transmission

Very large bandwidth and no twist


Drawback

Loss and twist


Difficult to manufacture

Very high price

1. History



2. Working


3. Industrial Technology and Application
4 . Application to the public domain 5. Future ?
Medicine
Medical endoscope

Laser surgery
Technical
Pipeline
Engine
...
Optical fiber sensor can mesures :
Temperature
Pressure
Force
This factor change the refraction of the light through the optical fiber
INDUSTRIAL
USE
Use in any
process that requires accurate monitoring
For industrial data networks
Critical System
http://www.sciences.univ-nantes.fr/sites/genevieve_tulloue/optiqueGeo/dioptres/fibre_optique.php
Source light and receiver
Differents sources light :
Light Emitting Diode
(850nm)

Lasers
(1 310nm to 1 550nm)
Infrared LED
(1 300nm)
Two fibers are required :
Emission
Reception

Receiver
Photodiode
Research
Waveguide based on air
Thank you for watching !
Bibliography :
http://en.wikipedia.org/wiki/Optical_fiber
http://www.gare.co.uk/technology_watch/fibre.htm
http://www.gare.co.uk/technology_watch/photo.htm
http://physique.unice.fr/sem6/2006-2007/PagesWeb/Telecom/applications.html
http://www.arcelect.com/fibercable.htm
http://www.futura-sciences.com/magazines/sante/infos/actu/d/medecine-cancer-tumeurs-cerveau-detruites-laser-deux-minutes-16546/
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