Slide 1: Optical Fiber: The Backbone of Modern Communication. Slide 2: What is an Optical Fiber?. Slide 3: The Guiding Principle: Total Internal Reflection (TIR). Slide 4: Anatomy of an Optical Fiber Cable. Slide 5: Single-Mode vs. Multi-Mode Fiber. Slide 6: Key Advantages of Optical Fiber. Slide 7: Challenges and Considerations. Slide 8: Real-World Applications. Slide 9: The Future is Bright: Next-Gen Fiber. Slide 10: Conclusion