2005 Mahatma Gandhi University M.Sc Electronic Science Fiber Optics and their Applications Question paper for exam preparation. Question paper for 2005 Mahatma Gandhi University M.Sc Electronic Science Fiber Optics and their Applications Question paper, Exam Question papers 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2012 university in india question papers. SiteMap
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2005 Mahatma Gandhi University M.Sc Electronic Science Fiber Optics and their Applications Question paper

University Question Papers
2005 Mahatma Gandhi University M.Sc Electronic Science Fiber Optics and their Applications Question paper
M.Sc. DEGREE EXAMINATION, DECEMBER 2005

Third Semester

Branch : Electronics

ME 301. FIBER OPTICS AND THEIR APPLICATIONS

Time : Three Hours Maximum : 75 Marks

Part A

Answer any six questions.
Each question carries 2 marks.

1. State Goos-Haenchen effect.
2. What are dispersion shifted fibers?
3. What are hybrid modes? Give example.
4. What are degenerate modes?
5. What are the factors that effect the light source linearity?
6. Give industrial applications of fiber.
7. What are the advantages and disadvantages of fusion splice?
8. What is the basis of wavelength division multiplexing?
9. Define Noise figure of an optical amplifier.
(6 X 2 = 12 marks)

Part B

Answer any three questions.
Each question carries 5 marks.

10. Determine the core radius necessary for single mode operation at 0.82 µm of a stop index fiber with n1 = 1.480 and n2 = 1.478.
11. What are macrobending losses and microbending losses? Explain with diagram.
12. What are rate equations? Explain the rate equations for a semiconductor laser.
13. Explain a optical fiber synchronous network.
14. Give the principle and design of optical amplifiers.
(3 X 5 = 15 marks)

Part C

Answer all questions.
Each question carries 12 marks.

15. (a) Discuss the mode theory of circular wavequides.
Or
(b) Explain the structure of a graded index fiber. Obtain an expression for power flow.
16. (a) Discuss the magnitude of different dispersions in various fibers.
Or
(b) Discuss the different scattering losses in SiO2 fiber at the operating wavelengths.
17. (a) Discuss the different fiber splicing techniques.
Or
(b) Explain with diagrams the various lensing schemes for coupling improvements.
18. (a) Explain the wavelength division multiplexing and demultiplexing techniques with suitable diagrams.
Or
(b) Discuss the classification of fiber amplifiers. Compare the advantages and disadvantages of each class.
(4 X 12 = 48 marks)




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