MU Electronics and Telecom Engineering (Semester 7)
Total marks: 80
Total time: 3 Hours
INSTRUCTIONS
(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.
5 marks
944
1(b) Explain the basic working principle of Lasers.
5 marks
951
1(c) Differentiate between the optical components isolator and circulator.
5 marks
972
1(d) Explain the concept of Bragg Grating.
5 marks
1(e) Define crosstalk. What are the types of crosstalk in optical transmission system?
5 marks
2(a) Derive the expression for pulse spreading in intermodal dispersion.
5 marks
944
2(b) Draw architecture of SONET/SDH and explain in brief.
5 marks
970
3(a) Explain Material attenuation in optical fiber communication.
5 marks
3(b) What do you mean by bit interleaving and packet interleaving?
5 marks
978
3(c) Derive the expression of Power Penalty with impariment and without impairment.
5 marks
4(a) Explain SPM and how it is mitigated by GVD.
5 marks
4(b) Explain four waves mixing.
5 marks
4(c) Cornment on need of Wavelength stabilization.
5 marks
5(a) Explain important network management functions to the operation of the Network.
5 marks
984
5(b) What is micro bending loss? Explain how to minimize the these losses with neat sketch.
5 marks
947
5(c) How DWDM is different from WDM?
5 marks
970
6 Write a short notes on:-
i) Link Budget
962
ii) Dispersion and OTDR
942
948
iii) Optical Access Network
975
iv) WDM network element and architecture
973
5 marks