What is modal dispersion - Study guides, Class notes & Summaries

An optical fiber works based off of a principle known as; Total Internal Reflection. The bending of light as it passes from one transparent material into another which has a different refractive index is what? Refraction. Light is electromagnetic radiation in the wavelength range including visible, ultraviolet, X-rays and _______________. Infrared. What are the three parts of a typical optical fiber? Core, Cladding, buffer Coating. (3 C's) A simple fiber optic sy...

ETA Fiber Optics Certification Exam Questions and Answers Light is electromagnetic energy with a _________ frequency and a ________ wavelength compared to radio waves. - ANSWER Higher, Shorter What type of light is used in Fiber Optic Transmissions - ANSWER Infrared or IR What are the four items needed for a Fiber Optic System to work? - ANSWER Transmitter, Fiber Cable, Receiver, Connectors 1mW is the same as what in dBM? - ANSWER 0 or absolute power ...

25-pair color code - ANSWER-White - Blue, orange, green, brown, slate Red - Blue, orange, green, brown, slate Black - Blue, orange, green, brown, slate Yellow - Blue, orange, green, brown, slate Violet - Blue, orange, green, brown, slate Fiber color code - ANSWER-Blue, Orange, Green, Brown, Slate, White, Red, Black, Yellow, Violet, Rose, Aqua NVP - ANSWER-Nominal Velocity of Propagation Insertion loss - ANSWER-The difference in the amount of power received before and after something...

Fiber Optics (Light Brigade) Questions and Answers Rated A+ When was the first North American commercial fiber optic system installed? 1977 What is a mode in an optical fiber? Path What are the "three Cs" of an optical fiber? Core, Cladding, Coating What are the three critical factors to be considered when working with a fiber optic network? Attenuation, Dispersion, Reflection What does the acronym ITU represent? International Telecommunication Union what are the two most...

B A third 90-degree bend may be permitted in a conduit run if the run does NOT exceed ______? A 5 m (16.5') B 10 m (33') C 15 m (50') D 30 m (100') C Which of the following is a property of an electromagnetic field built around a conductor that opposes any changes in current flow in a circuit? A Impedance B Capacitance C Inductance D Resistance A Which of the following markings is used for non-conductive optical fiber general-purpose cables? A OFNG B OFCR C OF...

Light is electromagnetic energy with ____ frequency and a ______ shorter wavelength Higher then shorter fiber optics transmission takes place in _____ portion of the light spectrum IR A simple fiber optic System consist of what 4 parts Transmitter, fiber optic cable, receiver, connecters What absolute power is Dbm referenced to 1 milliwatt Absolute power in optical fiber is specified as Dbm Attenuation in optical fiber is lowest at what wavelength 1550 What are the three most common wave...

Fiber Class Questions and Answers Already Passed Light is electromagnetic energy with a ____________ frequency and a ___________ wavelength compared to radio waves. Higher/Shorter Fiber optic transmission takes place in the ___________ portion of the light spectrum. Infrared A simple fiber optic system would consist of what 4 parts? Transmitter/Fiber optic Cable/Receiver/Connector What absolute power value is zero dBm referenced to? 1 miliwatt Absolute power in optical fiber...

Fiber Questions and Answers 100% Pass What is the difference between light and radio freq? Light uses high freq Radio uses short freq What type of light is used in Fiber Optic Transmissions? Infrared Light What are the 4 items needed for a fiber optic system to work? Transmitter, fiber optic cable, receiver, connectors. 1 mW is the same as what in dBM? 0 dBM How is power measured in fiber optic dBM What is the best wavelength to use in fiber optic transmissions? 1550 nm ...

25-pair color code White - Blue, orange, green, brown, slate Red - Blue, orange, green, brown, slate Black - Blue, orange, green, brown, slate Yellow - Blue, orange, green, brown, slate Violet - Blue, orange, green, brown, slate Fiber color code Blue, Orange, Green, Brown, Slate, White, Red, Black, Yellow, Violet, Rose, Aqua NVP Nominal Velocity of Propagation Insertion loss The difference in the amount of power received before and after something is inserted into the circuit. Resist...

1. Light is electromagnetic energy with frequency and a shorter wavelength ANS Higher then shorter 2. fiber optics transmission takes place in portion of the light spectrum- ANS IR 3. A simple fiber optic System consist of what 4 parts ANS Transmitter, fiber optic cable, receiver, connecters 4. What absolute power is Dbm referenced to ANS 1 milliwatt 5. Absolute power in optical fiber is specified as ANS Dbm 6. Attenuation in optical fiber is lowest at what wavelength ANS 1550 7...