ETA Fiber practice questions and verified correct answers 2024

Light is electromagnetic energy with ____ frequency and a ______ shorter wavelength - correct answer Higher then shorter fiber optics transmission takes place in _____ portion of the light spectrum - correct answer IR A simple fiber optic System consist of what 4 parts - correct answer Transmitter, fiber optic cable, receiver, connecters What absolute power is Dbm referenced to - correct answer 1 milliwatt Absolute power in optical fiber is specified as - correct answer Dbm Attenuation in optical fiber is lowest at what wavelength - correct answer 1550 What are the three most common wavelength windows used for communication thru optical fibers - correct answer 1550, 850, 1300 In North America what year was the first fiber optic telephone system installed - correct answer 1977 Single-mode fiber optic systems typically use what light source - correct answer Laser diode Multimode Fiber optic transmitters typically use what two low cost light sources - correct answer Led, VCSEL The typical numerical aperture for 50/125 I'm optical fiber is - correct answer .200