WON 1ST PRIZE BY Nisarg Bhagavantanavar

1. JSS, K.H.KABBUR INSTITUTE OF ENGINEERING
Topic : Optical fibers
By Nisarg Y Bhagavantanavar
Brief Flow of the Presentation.
1. Introduction
2. What are Optical Fibers?
3. Structure of optical fiber
4. Workings
5. Advantages / Disadvantages of
Optical fiber
6. Applications of Optical fiber

2. Optical fiber
 INTRODUCTION
 CAUSES FOR THE CREATION OF THE OPTICAL FIBER----- Man’s HUNGER
 Smoke Horse riders Telephone & Telegraph that used copper wire
Coaxial cable VHF and UHF Radios, Satellite still UNSTISFIED .
 Lastly optical fiber’s were invented to satisfy the Man’s hunger for
communication

3. What are optical fibers?
 Fiber optics = Fiber + optics
 in essence = Light is guided in optical
fiber.
 Fiber = Extremely pure glass(silica)
or plastic
 Speed= current record
15.5tbps
Total internal reflection

4. Structure of optical fiber
Extremely pure fused silica – very low loss for long distance transmission
Core – higher refractive index
Cladding – lower Refractive index
Buffer coating – mechanical protection

5. Working of optical fiber
Light Transmission

6. Advantages of optical fiber
The optical fiber has following advantages over twisted -pair and coaxial
cable.
• Resistance to noise
• Huge bandwidth
• Higher signal carrying capacity
Disadvantages
Along with all disadvantages that it offers, optical fiber also has some
disadvantages, as summarized below.
• Fragility
• Cost
• Maintenance overhead

7. Applications
Optical fiber have wider range of application in almost all field, i.e. in medical,
electronics, military etc .some are been specified below
• Medical
• Military
• Electronics
IBM microprocessors

8. • Conclusion:
This is the greatest discovery that man have done in the field of communication
• Reference:
• Data communications and networks – by Achyuts godbole.
• Digital communication – by K.Shashider.
• Wikipedia – Internet.
THANK YOU