Brief Flow of the Presentation.1. Introduction2. What are Optical Fibers?3. Structure of optical fiber4. Workings5. Advantages / Disadvantages of

Optical fiber6. Applications of Optical fiber

JSS, K.H.KABBUR INSTITUTE OF ENGINEERING

Topic : Optical fibers

By Nisarg Y Bhagavantanavar

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

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

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

Working of optical fiber

Light Transmission

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

Along with all disadvantages that it offers, optical fiber also has some disadvantages, as summarized below.

• Fragility

• Cost

• Maintenance overhead

Disadvantages

ApplicationsOptical 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

• 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