Question Paper: Optical Communication & Networks Question Paper - December 2016 - Electronics and Telecom Engineering (Semester 7) - Mumbai University (MU)
MU Electronics and Telecom Engineering (Semester 7)
Total marks: 80
Total time: 3 Hours
(1) Question No. 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Draw neat diagrams wherever necessary
Solve any four questionQ.1(a,b,c,d,e)
1(a) Compare intermodal and intramodal dispersion.
1(b) Explain the basic working principle of Lasers.
1(c) Differentiate between the optical components isolator and circulator.
1(d) Explain the concept of Bragg Grating.
1(e) Define crosstalk. What are the types of crosstalk in optical transmission system?
2(a) Derive the expression for pulse spreading in intermodal dispersion.
2(b) Draw architecture of SONET/SDH and explain in brief.
3(a) Explain Material attenuation in optical fiber communication.
3(b) What do you mean by bit interleaving and packet interleaving?
3(c) Derive the expression of Power Penalty with impariment and without impairment.
4(a) Explain SPM and how it is mitigated by GVD.
4(b) Explain four waves mixing.
4(c) Cornment on need of Wavelength stabilization.
5(a) Explain important network management functions to the operation of the Network.
5(b) What is micro bending loss? Explain how to minimize the these losses with neat sketch.
5(c) How DWDM is different from WDM?
6 Write a short notes on:-
i) Link Budget
ii) Dispersion and OTDR
iii) Optical Access Network
iv) WDM network element and architecture
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