STUPIDSID
1(a)
What are the advantages of Optical Fiber Communication?
5 M
1(b)
Explain Bandwidth distance product.
5 M
1(c)
What are Linearly Polarized modes?
5 M
1(d)
Compare direct band and indirect band semi conductors.
5 M
2(a)
Derive the expression for numerical aperture of a step-index fiber. What will happen to N.A. if cladding is removed?
10 M
2(b)
Compare step index and graded index fiber.
10 M
3(a)
Starting from Maxwell's equations, derive the wave equation for step index fiber
10 M
3(b)
Explain the significance of V-number. Derive the expression for number of guided modes in graded index fiber.
10 M
4(a)
What do you understand by intramodal dispersion? Derive the expression for material dispersion.
10 M
4(b)
What are the reasons for signal attenuation in an optical fiber
10 M
5(a)
Give the structure of the surface emitting LED. Compare with an edge emitting LED.
10 M
5(b)
Explain Avalanche Photodiode with proper structure and electric field. What is multiplication factor?
10 M
6(a)
What are splices? Explain different types of splices.
10 M
6(b)
Explain Double Crucible method of fiber fabrication.
10 M
Write short notes on any two:
7(a)
Linearly polarized modes
10 M
7(b)
OTDR
10 M
7(c)
Link Power Budget
10 M
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