Link to notes: https://files.gursimrandhillon.com/do... Fibre Optics 1. Components of Fibre Optics Transmission 2. Working Principle of Fibre Optics 3. Structure of Fibre Optics 4. Types/Communication Modes 4.1 Single Mode 4.2 Multimode 4.2.1 Step Index 4.2.2 Graded Index