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 Tran...
ETA Fiber Optics Certification CORRECT
100%
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
How is power measured in fiber? - ANSWER mW or dBM
Propagation - ANSWER light is reflected off a body and is return to its original emission point, the law of
propagation for the return trip is the original trip.
wavelength - ANSWER Horizontal distance between the crests or between the troughs of two adjacent
waves
Frequency - ANSWER the number of complete wavelengths that pass a point in a given time
What fiber optic wavelength has the lowest loss? - ANSWER 1550 um
What wavelength windows are used for most communications? - ANSWER 850, 1330, 1550
What year was the first fiber optic cable used in the communication telephone system? - ANSWER 1977
, What light source is used for single mode? - ANSWER Laser Diode LD
What two light sources are used with multimode? - ANSWER Light Emitting Diode (LED)
Vertical Cavity Surface Emitting Laser (VCSEL)
What is a mode in optical fiber? - ANSWER A light path through a fiber. (multi-mode and single-mode)
What will happen to the tensile strength of a fiber cable if it is bent more than recommended? -
ANSWER it will decrease or break
What are the two most common types of core and cladding in multi-mode fibers? - ANSWER 62.5/125
50/125
The buffer diameter for a fiber used in tight-buffered cables is what? - ANSWER 900 um
What jacket color does single-mode fiber have? - ANSWER yellow
Twelve colors comprise the fiber color code. What are they in order? - ANSWER Blue
Orange
Green
Brown
Slate
White
Red
Black
Yellow
Violet
Rose
Aqua
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 shantelleG. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.99. You're not tied to anything after your purchase.