The fiber cables guide light around bends and they are able to carry light for very long distances with very little attenuation. ... The fiber cables introduce loss of light and smearing of the modulation imposed on the light signals to represent information. ... The most basic optical fiber consist of: a) An inner cylinder with high refractive index, called the core. b) Middle cylinder with a lower refractive index, called the cladding. c) An outer protective polymer layer (usually polyurethane or PVC) called the jacket. ... If you use silica glass for the core, it must be high purity in orde...

• Word Count: 3963
• Approx Pages: 16
• Grade Level: High School