Lec 11 | Step Index / Graded Index Fibres (Types of Fibre) | Engineering Physics BTech 1st Year

Описание: Step Index vs Graded Index Fibre | Types of Optical Fibre | Engineering Physics BTech 1st Year

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This video lecture on Step Index and Graded Index Optical Fibres, a core topic of Optical Fibre Communication and Engineering Physics, is designed for BTech 1st Year students. In this lecture, we explain the refractive index profile, light propagation mechanism, and how these fibre types affect dispersion, bandwidth, and signal quality.

You will clearly understand the difference between step index fibre and graded index fibre, their construction, advantages, limitations, and applications in communication systems. The explanation is comparative, simple, and exam-oriented, making it ideal for university exams.

This lecture is especially useful for RGPV BTech 1st Year students from all branches including CSE, IT, Mechanical, Electrical, Civil, and ECE, and is also applicable to other Indian engineering universities following a similar Engineering Physics syllabus.

📘 This Laser Physics Playlist Will Include:

Introduction to Lasers
Einstein’s Coefficients
Population Inversion & Pumping
He-Ne Laser Construction & Working
CO₂ Laser Construction & Working
Ruby Laser Construction & Working
Nd:YAG Laser Construction & Working
Introduction to Optical Fibre Cable
Single Mode & Multi Mode Fibre
Step Index & Graded Index Fibre
Optical Fibre Communication & Applications

🎯 This Video Is Helpful For:

BTech 1st Year (RGPV) – All Branches: CSE / IT / Mechanical / Civil / Electrical / ECE
Engineering Physics Optical Fibre concepts
Engineering Physics important comparison & theory questions
Engineering Physics complete syllabus for 1st year university exams
Engineering Physics foundation for GATE, NET, IIT-JAM aspirants

Step index and graded index fibres are frequently asked comparison topics in Engineering Physics exams, especially for ray diagrams, refractive index profile, and advantages. This lecture is also useful for B.Sc., M.Sc., B.Tech, and M.Tech students, and for those preparing for higher studies and competitive examinations.

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