FOA CFOT Terms and Definitions A thru Z Actual Exam Questions with All Correct Answers Updated (Graded A+)
1 view 0 purchase
Course
FOA CFOT Terms and Definitions A thru Z
Institution
FOA CFOT Terms And Definitions A Thru Z
FOA CFOT Terms and Definitions A thru Z Actual Exam Questions with All Correct Answers Updated (Graded A+)
Device that clamps onto a fiber and couples light from the fiber by bending, identifying the fiber (amongst others in a bundle, for example) by detecting high speed traffic of an operating...
FOA CFOT Terms and Definitions A thru
Z Actual Exam Questions with All
Correct Answers Updated 2024-2025
(Graded A+)
Device that clamps onto a fiber and couples light from the fiber by bending, identifying
the fiber (amongst others in a bundle, for example) by detecting high speed traffic of an
operating link or 2kHz tone injected by a test source. - Answer- Fiber Identifier
An instrument that couples visible light into the fiber to allow visual checking of
continuity and tracing for correct connections. - Answer- Fiber Tracer
Precision tube which holds a fiber for alignment for interconnection. Typically made from
ceramics and is white in color. - Answer- Ferrule
Uses erbium or other doped fibers and pump lasers to increase signal output power
without electronic conversion. - Answer- Fiber Amplifier
Amount of light lost in a coupler, beyond what is typical in the splitting to multiple output
fibers. - Answer- Excess Loss
IBM standard for connecting peripherals to a computer over fiber optics. - Answer-
ESCON
Steady state modal distribution in multimode fiber, achieved some distance from the
source, where the relative power in the modes becomes stable with increasing distance.
- Answer- Equilibrium Modal Distribution (EMD)
Quality of the end surface of a fiber prepared for splicing or terminated in a connector. -
Answer- End Finish
An LED that emits from the edge of the semiconductor chip, producing higher power
and narrower spectral width. - Answer- Edge-emitting Diode (E-LED)
Temporal spreading of a pulse in an optical waveguide. May be caused by modal or
chromatic effects. - Answer- Dispersion
Used for high speed and long distance transmitters. - Answer- Distributed Feedback
Laser (DFB)
, Photodiode that converts optical signals into electrical signals. - Answer- Detector
Unit of measurement of optical power which indicates relative power on a logarithmic
scale. dB = 10 log - Answer- Decibel (dB)
Optical power referenced to 1 miliwatt. - Answer- dBm
Use of lasers spaced widely over the range of 1260nm to 1670 nm. - Answer- Coarse
Wavelength Division Multiplexing (CWDM)
The wavelength beyond which singlemode fiber only supports one mode of propagation
is called a what? - Answer- Cutoff Wavelength
Technique for measuring loss of bare fiber by comparing the sources initial coupled
power to the power measured at the end of a long length of fiber. - Answer- Cutback
Method
Device that splits or combines light from more than one fiber. - Answer- Coupler
The center of the optical fiber through which light is transmitted. - Answer- Core
A device that provides for a demountable connection between two fibers (or fiber and
active device). Also provides protection for the fiber. - Answer- Connector
Lower fractive index optical coating over the core of fiber that "traps" light into the core. -
Answer- Cladding
Temporal spreading of a pulse in an optical waveguide caused by the wavelength
dependence of the velocities of light. - Answer- Chromatic Dispersion
A protective coating applied directly on the fiber. - Answer- Buffer
An electrical or optical pulse that carries information. - Answer- Bit
Fraction of data bits transmitted that are received in error. - Answer- Bit-Error Rate
(BER)
Loss in fiber caused by stress on the fiber bet around a restrictive radius. - Answer-
Bending Loss / Microbending Loss
Range of signal frequencies or bit rate within which a fiber optic component, link or
network will operate. The maximum speed that data can be transmitted over the link. -
Answer- Bandwidth
What is a linear measure of optical power? - Answer- Watts
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Scholarsstudyguide. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.39. You're not tied to anything after your purchase.
