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
,2|Page
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
, 3|Page
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
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 Charitywairimu. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $16.49. You're not tied to anything after your purchase.
