Fiber optics exam 1 questions and answers

Fiber optics exam 1 questions and answers Total internal reflection - Answer ️️ -Trapping light in a material (fiber optic) by surrounding it by another material with a lower refractive index is the phenomenon of Index of Refraction - Answer ️️ -Ration of Speed of light in a material/Speed of light in a vacuum Measure to how much light slows down when entering a material Attenuation - Answer ️️ -The reduction in optical power (Loss) as it passes along a fiber, usually expressed in dB Optical fiber data link is made of 3 elements - Answer ️️ -1) Light source 2)Fiber 3) Light Detector Typical fiber optic data link - Answer ️️ -1) Transmitter = source driver and light 2) Connectors 3) Cables/Fiber 4)photodiode receiver Buffer Coating - Answer ️️ -Physical protection around the Cladding/core Cladding - Answer ️️ -Covering around glass that keeps light inside of Core via Total Internal Refraction Core - Answer ️️ -Center glass where light travels Multi mode Step index - Answer ️️ -1 type of glass Light travels in straight lines Multi mode graded index - Answer ️️ -Many layers of glass in the core 100x faster then Step-Index Single Mode - Answer ️️ -Light travels in one mode NO modal dispersion Bandwidth increases CATV - Answer ️️ -Community Antenna Television