Fiber optic Take a walk to the. Fiber optics Basics for fiber optics.
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Transcript of Fiber optic Take a walk to the. Fiber optics Basics for fiber optics.
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Fiber optics
Basics for fiber optics
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Alexander Bell´s model of the first light telephone
sunlight
mirror
microphone
modulated light
tuner
selen cell
earphone
station
membrane
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Light
What is light?
Light is an elementary particle
Light is electromagnetic power, like radio waves and x-ray
Light is going in a sinus curve with about 300.000 km/s through air and vacuum
Light is going with about 200.000 km/s through fiber
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wave length
frequencyf
t
1 sec.Frequency (quantity of the sinus curves per second) and wave length (distance between 2 waves)
To imagine the journey of the light in the fiber optic, it is treated like a simple beam
Light
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Fiber optic / Copper Two-wire line
transmitter receiver
E/O O/E
signal processing signal processing
signal processing signal processing
two-wire line
Singlemode fiber
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Copper vs. fiber optic
Advantages of copper:
Easy to fit Mounting friendly Intergrable in available networks
Advantages of fiber optic:
High transfer bandwidthNo crosstalkIt is light, thin and flexible to fit It can be fitted in explosive, dangerous environmentsSave from lightning strikesEavesdrop-proof
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Manufacturing of the fibers
http://www.kabelbranche.de/t3_9.php
Outter material for the fiber optic production is fused quartz, which will be formed with the help of different seperation treatments by gas and heat supplyment. To extract the fibers, the finished base body will be hung up in a fiber drawing tower (image).
The height of the fiber drawing tower amounts around 5 m, where the end of the prototype will be heated to 200°C, to grab the end and pull out the fibers. While this pulling treatment, the geometric circumstances of the prototype will be obtained to create a smaller image of the prototype.
Right after the substraction, a first protective coat will be applied and will be hardened with UV-lightening. This so called primary cladding shall protect the fibers against harmful influences, before it will be rolled up on a drum.
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Fibers
Multimode fibers
Bigger diameterMultiple spreading ways of the lightTransfer of 100 conversationsData loss through over lapping
Singelmode fibers
Small heart with only one spreading wayHigher range
50-62,5 µm 125 µm
9 µm 125 µm
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Ethernet OM1 OM2 OM3 OM4 OS1/OS2
100 Mbit/s100BASE-SX 850 nm 300 m 300 m 300 m n.a.
100BASE-FX 1310 nm 2000 m 2000 m 2000 m 2000 m 10.000 m
1 Gbit/s1000BASE-SX 850 nm 300 m 500 m 1000 m 1000 m
1000BASE-LX 1310 nm 500 m 500 m 500 m 500 m 5000 m
10 Gbit/s
10GBASE-SR 850 nm 30 m 80 m 300 m 500 m
10GBASE-LR(M) 1310 nm 220 m 220 m 220 m 220 m 10.000 m
10GBASE-ER 1550 nm 40.000 m
40 Gbit/s
40GBASE-SR4 850 nm n.a. n.a. 100 m 125 m
40GBASE-LR4 1310 nm 10.000 m
40GBASE-ER4 1550 nm 40.000 m
Fiber Channel OM1 OM2 OM3 OM4 OS1 / OS2850 nm 1310 nm 1550 nm
1 Gbit/s 1GFC 300 m 500 m 800 m n.a. 10.000 m 50.000 m
2 Gbit/s 2GFC 150 m 300 m 500 m n.a. 10.000 m 50.000 m
4 Gbit/s 4GFC 70 m 150 m 380 m 400 m 10.000 m n.a.
8 Gbit/s 8GFC 20 m 50 m 150 m 190 m 10.000 m n.a.
16 Gbit/s 16GFC 15 m 35 m 100 m 125 m 10.000 m 50.000 m*
Classification
OM 2 OM3 OM4 OS2
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Cable
Primary coating
Core
Cladding
250 mm
125 mm
9/50/62,5 mm
900 mm(0.9 mm)
3000 mm(3 mm)
Secondarycoating
KevlarthreadJacket
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Connector
Copper: male + femaleFiber optic: male + coupling + male
Most common connector jacks: ST / LC / SC / E 2000 / MPO
Requirements to the connectors:Low damping 0,1-0,5 dBHigh backflow damping
Ferrule which records fiber, made out of plastic or metal. The fiber sticks inside them and is being smoothed or polished.
PC is being polished.APC 8° is being smoothed and sometimes even 9° (telecom).
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APC
Polishing
PC
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Connector types
The most commonly applied connector jacks in the telecommunications are LC, SC, ST and E2000. In the laser and measurement engineering are most commonly FC and F-SMA jacks installed.
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Attention !!
•Visual danger•Skin injuries•No fiberglass while eating•Fiber-recording•Disposal
Never look into a fiber optic cable with an optical magnification!
Be careful with „open“ fibers! •It stings in the skin•It breaks very easily•It has a capillary effect in the body
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Network plane
network plane 1Broadcasting corporation
network plane 2Reception / conditioning
network plane 3Signal distribution road network
network plane 4House location
network plane 5Apartment
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Assmann Electronic GmbHProduct ManagerAxel BövingAuf dem Schüffel 358313 Lüdenscheid
[email protected]+49 2351 554 436
