# Dispersion Management and Soliton Systems MCQ’s

This set of Optical Communication Multiple Choice Questions & Answers (MCQs) focuses on “Dispersion Management and Soliton Systems”.

1. Calculate the path length L_{2} if L_{1}is 160, dispersion coefficient of L_{2} is 17, dispersion coefficient of L_{1} is -2.25 ps/nmkm.

a) 40 km

b) 20 km

c) 30 km

d) 10 km

2. Calculate path length L_{1} if L_{2} is 20, dispersion coefficient of L_{2} is 17, dispersion coefficient of L_{1} is -2.25 ps/nmkm.

a) 180 km

b) 30 km

c) 160 km

d) 44 km

3. Calculate second order dispersion coefficient for path length L_{2} 20km and L_{1} 160km. Dispersion coefficient for L_{2} is 17.

a) -2.125ps/nm km

b) -3.25ps/nm km

c) -3.69ps/nm km

d) -1.28ps/nm km

4. Calculate second order dispersion coefficient for path length L_{1} 20 km and L_{1} 160 km. Dispersion coefficient for L_{1} is -2.125*10^{-12}s/nmkm.

a) 20

b) 19

c) 18

d) 17

5. Calculate dispersion slope for first path fiber if L_{1} is 160, L_{2} is 20 and s_{2} is 0.6ps/nm km.

a) 0.1

b) 0.432

c) 0.236

d) 0.075

6. Calculate L_{1} if dispersion slope for first path fiber is 0.075 and L_{2} is 20 km and s_{2} is -0.6ps/nm km.

a) 170 km

b) 160 km

c) 180 km

d) 175 km

7. Calculate value of dimensionless parameter if bit period is 45ps and RZ pulse width is 4 ps.

a) 5.625

b) 5.0

c) 4

d) 6.543

8. Calculate RZ pulse width if bit period is 60ps and separation of soliton pulses is 5.4.

a) 5.5ps

b) 8.1ps

c) 4.3ps

d) 2.3ps

9. Calculate dispersion slope for second path fiber if L_{1} is 150, L_{2} is 10 and s_{1} is 0.075.

a) 1.125

b) 2.125

c) 3.125

d) 1.9

10. Calculate L_{2} if dispersion slope for first path fiber is 0.075 and L_{1} is 160 km and s_{2} is -0.6ps/nm km.

a) 20 km

b) 30 km

c) 40 km

d) 50 km

11. Calculate separation of soliton pulses over a bit period length if R_{2} pulse width is 6 ps for bit period of 70 ps.

a) 5.9

b) 5.7

c) 5.8

d) 5.4

12. Calculate bit period if RZ pulse width is 50ps and separation of soliton pulses is 5.6.

a) 570ps

b) 540ps

c) 430ps

d) 560ps

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