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Total Internal Reflection and Snell's Law - TikZ Figures

Optical fibre communication system: electrical input source driver optical source fibre channel photodetector receiver electronics recovered output
Fig: Optical fibre communication system: electrical input source driver optical source fibre channel photodetector receiver electronics recovered output
Fibre cross-section: high-index core (n_1), lower-index cladding (n_2) and a protective coating/jacket
Fig: Fibre cross-section: high-index core (n_1), lower-index cladding (n_2) and a protective coating/jacket
Rays entering within the acceptance angle _a undergo repeated total internal reflection and stay confined to the core; steeper rays refract into the cladding and are lost
Fig: Rays entering within the acceptance angle _a undergo repeated total internal reflection and stay confined to the core; steeper rays refract into the cladding and are lost