Optical Communication Mock Test 2

10%

Question 1 of 10

1. Polarization modal noise can _________ the performance of communication system.

Improve

Attenuate

Degrade

Reduce

Question 1 of 10

Question 2 of 10

2. Multimode step index fibers have a bandwidth of ___________

8 to 40 MHz km

10 to 40 MHz km

2 to 30 MHz km

6 to 50 MHz km

Question 2 of 10

Question 3 of 10

3. The ratio r = (n1 - n)/(n1 - n) indicates ____________

Fresnel reflection

Angular power distribution coefficient

Refraction coefficient

Reflection coefficient

Question 3 of 10

Question 4 of 10

4. A multimode fiber has RMS pulse broadening per km of 12ns/km and 28ns/km due to material dispersion and intermodal dispersion resp. Find the total RMS pulse broadening.

31.23ns/km

28.12ns/km

26.10ns/km

30.46ns/km

Question 4 of 10

Question 5 of 10

5. How many categories exists in case of cable design?

One

Three

Four

Two

Question 5 of 10

Question 6 of 10

6. When two components are equally excited at the fiber input, then for polarization maintaining fibers δΓ_g should be around ___________

1 ns/km

1.5ns/km

1.2ns/km

2ns/km

Question 6 of 10

Question 7 of 10

7. Non-zero-dispersion-shifted fiber was introduced in the year 2000.

True

False

Question 7 of 10

Question 8 of 10

8. A typically structured glass multimode step index fiber shows as variation of attenuation in range of ___________

1.6 to 60 dB km^-1 at wavelength 0.90μm

2.6 to 50 dB km^-1 at wavelength 0.85μm

1.2 to 90 dB km^-1 at wavelength 0.69μm

3.2 to 30 dB km^-1 at wavelength 0.59μm

Question 8 of 10

Question 9 of 10

9. The cable must be designed such that the strain on the fiber in the cable does not exceed __________

0.160%

0.002%

0.01%

0.2%

Question 9 of 10

Question 10 of 10

10. Standard single mode fibers (SSMF) are utilized mainly for operation in ___________

C-band and L-band

C-band

O-band

L-band

Question 10 of 10