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Fiber optic final Exam Questions Correct Answers Current Update (A Pass)

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Fiber optic final Exam Questions Correct Answers Current Update (A Pass) What is "Fiber Optics"? - Answers -Transmitting communication signals over hair thin strands of glass or plastic. Multimode Fiber (MM) - Answers -Large core fiber used for slower premises (indoor) networks. Operates in w...

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  • September 18, 2024
  • 10
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Fiber optic
  • Fiber optic
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Fiber optic final Exam Questions Correct
Answers Current Update (A Pass)
What is "Fiber Optics"? - Answers -Transmitting communication signals over hair thin
strands of glass or plastic.

Multimode Fiber (MM) - Answers -Large core fiber used for slower premises (indoor)
networks. Operates in wavelengths 850 nm and 1300 nm. Can send multiple modes at
once.

Singlemode Fiber (SM) - Answers -Small core fiber used for everything else, higher
bandwidth, lower attenuation. Operates on wavelengths 1310 nm and 1550 nm. Can
only send one mode at once.

Wavelength is the? - Answers -measure of the "color" of the light. Visible light is around
500-600 nm.

T or F
Fiber is Metric - Answers -True

T or F
Fiber size in microns - Answers -True

FTTH - Answers -Fiber to the home

FTTC/N - Answers -Fiber to the Curb or Node

PON - Answers -Passive optical network

ONT - Answers -Optical network terminal, provide voice, data and video feed to the
home.

DAS - Answers -Distributed antenna systems

Lower power outputs than lasers - Answers -LED

Ideal for long distance high speed links, used for singlemode - Answers -Fabry-Perot
laser

VCSEL - Answers -Vertical cavity surface emitting laser

Wavelength
silicon detectors - Answers -650 to 850 nm

, Wavelength
InGaAs - Answers -1310 to 1550 nm, indium gallium arsenide

APD - Answers -avalanche Photodiode, significant gain compares to Silicon and
InGaAs

What is Fiber? - Answers -Transmits the signal as light

Cables - Answers -Protects the fibers in the application enviroment

What are Connecters - Answers -joins fibers or connect to active devices

Splices - Answers -Join two fibers permanently

T or F
Light does not travel in the core - Answers -False

Light is trapped inside the core by the... - Answers -optical cladding

Protects the fiber from moisture and damage - Answers -Buffer or primary coating

The core and cladding are made of .... - Answers -Silica glass

Light bends when index of _____________ changes - Answers -refraction

numerical aperture - Answers -angles that light is transmitted in the fiber

Most fiber is ___________ microns in cladding diameter. - Answers -125

POF is mostly _____ mm with a thin cladding. - Answers -1

T or F
Mate dissimilar fibers for little to no loss? - Answers -False
Mating dissimilar fibers will cause great loss.

HCS/PCS is _______ microns with a ________ core. - Answers -250, 200

OM1 - Answers -62.5/125, FDDI Grade

OM2 - Answers -50/125

OM3 - Answers -50/125, Laser Optimized (2000 MHz-km) Mostly used today.

OM4 - Answers -50/125, Laser Optimized (3500 MHz-km)

OM5 - Answers -50/125, Wavelength Extended 850-950 nm for WDM.

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