OPTICAL_ +FIBER_ PPT [1].pptx

optical fiber seminar

1. Contents : What are optical fibers? History and evolution of Optical Fiber Structure of optical Fiber Working principle of Optical fiber Classification of optical fiber Advantages/ Disadvantages Applications Conclusion References

2. What are Optical Fibers? Optical fiber is a thin, flexible, transparent fiber that acts as a light pipe to transmit data between the two ends of fiber. They are widely used in telecommunications and data transmission due to their high bandwidth and low signal loss.

3. History of optical fiber John Tyndall 1850 N.S. Kapany Charles Kao 1952 1965

4. Working Principle of Optical Fiber Optical fibers work on the principle of Total Internal Reflection, where light is confined within the core due to reflection at the core-cladding boundary, allowing efficient data transmission. reference:-https:/todaystechnology.weebly.com

5. Classification Based on Material 1 . Plastic Fibers: Lower cost, used for short-distance and consumer applications. 2. Glass Fibers: High performance, used for long-distance communication. Classification based on modes: SMF MMF

6. Multi mode v/s Single mode Reference:-https://www.omnitron-systems.com Multi mode 1.)low cost sources 2.)high loss, lower bandwidth 3.)distance up to 2km. 4.)best for:- LAN,SAN Single mode 1.)high cost source 2.)lower loss, high bandwidth 3.)distance to 60km+ 4.)best for:- WAN, MAN, Campus

7. Classification on the basis of refractive Index

8. Optical fiber v/s copper wire Benchmark Optical fiber Copper wire Carries data in the form of light Electric signal Installation cost is High Low Is it thin and lighter in weight Yes No Corrosive material resistance More Less Attenuation Low High Security Highly secured Less secure

9. Advantages of Optical Fibers 1. High bandwidth capacity - means faster speed. 2. Improve Latency 3. Strongly secured 4. Greater Flexibility 5. Long transmission distances with less loss.

10. Disadvantages of Optical Fibers Fragility: - Optical fibers can be more fragile compared to copper cables as they are made up of glass . Installation and repair: - Requires specialized skills and equipment. Higher initial cost: - Equipment and installation can be expensive.

11. Applications of Optical Fibers Telecommunications: High-speed internet and telephone services. Militar y and Aerospace: Secure communication. Industrial: Sensors and data communication in harsh environments.

12. ENDOSCOPY There are 2 optical fiber in endoscopy. One for light to illuminate inside the patient and another for a camera to send image back to doctor. reference:-https://todaystechnology.weebly.com

13. Conclusion Optical fibers play a crucial role in modern communication systems, offering high-speed, reliable, and secure data transmission. As technology advances, the use of optical fibers is expected to grow.

14. REFERENCES:- N. S. Kapany , Fiber Optics: Principles and Application J. Gower , optical communication system, 2 nd ed., Prentice Hall Optical Fiber Communications by JOHN M. SENIOR

15. THANKYOU