WorksheetsMedios de Tx Test 4
Total questions: 8
Worksheet time: 4mins
Name
Class
Date
1.
A disadvantage of the OF vs conducting transmission media is:
a)
Lower scalability
b)
Immunity to EMI and RFI
c)
Not useful for PoE
d)
It's a more vulnerable media
2.
A wave transmitted in an OF with a wavelength equal to 1.6 µm is been transmitted in the:
a)
S band
b)
C band
c)
L band
d)
U band
3.
The attenuation in the wavelength window for red color in POF is about
a)
550 dB/km
b)
650 dB/km
c)
150 dB/km
d)
100 dB/km
4.
A wave that travels inside a medium 1 with refractive index n1=3 hits the interface with a medium 2 with an incidence angle of 30° and gets TIR. Then, the refractive index of medium 2 is: [NOTE: sin(30°)=0.5]
a)
greater than 1 and lower or equal than 3
b)
greater or equal than 1.5
c)
greater than 1 and lower or equal than 1.5
d)
greater or at least equal to 1
5.
The coating material in glass OF is usually made of:
a)
Colored PE
b)
Colored PVC
c)
PMMA
d)
SiO2
6.
The nonlinearity coefficient in an optical fiber:
a)
Is directly proportional to the power of the wave
b)
Is directly proportional to the wavelength of the wave
c)
Is inversely proportional to the diameter of the OF's core
d)
Is inversely proportional to the refractive index nonlinear coefficient
7.
A wave with TE polarization travels in glass (n=1.5) and passes to the air. If the wave's incidence angle when it arrives to the glass-air interface is equal to 0°, the amount of energy transmitted to the air would be:
a)
aprox. 80%
b)
aprox. 20 %
c)
aprox. 0 %
d)
aprox. 100 %
8.
The material commonly used for manufacturing a POF's cladding is:
a)
Fluorinated Polymer
b)
SiO2
c)
PVC
d)
PMMA
100 %
