Optical Fiber
unseel.com · total internal reflection  ·  core & cladding  ·  trapped light
core index 1.4675
clad index 1.4622
critical angle 85.1°
loss @1550nm 0.2 dB/km
state standby
core (high index)
cladding (low index)
guided light ray
leaked / refracted ray
Unseel.com · Optical Fiber