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VTU M.Tech Question Papers June July 2015

VTU M.Tech Optical Communication and Networking 2015 Question Paper

VTU Question Papers
Department of M.Tech Electronics
M.Tech. Degree Examination
Second Semester
Optical Communication and Networking
June / July 2015 Question Paper
Max. Marks:100
Time: 3 Hours

Question Paper Code : USN 14ECS24
Second Semester M.Tech Degree Examination, June/July 2015
Optical Communication and Networking
Time: 3 hrs. Max. Marks: 100
Tote: Answer any FIVE full questions.
Discuss the wave approach for the propagation of light through the fiber.
Explain the operation of laser, with neat diagram.
What are graded index fibers?
Explain the function and principle of operation of the following:
i) Gratings ii) Mach - Zehender Interferometer.
What are the key characteristics of optical filtering systems?
What is a directional coupler? Mention it applications.
With neat block diagram, explain blocks involved in receiver. Li t the various noise in each
block and explain. (12 Mark )
Estimate the error rate of an ideal receiver.
Write a note on coherent detection.
Discuss power penalty in transmission system engineering.
Explain gain equalization in EDF As.
Discuss chromatic dispersion limits in NRZ modulation scheme.
a. Write a note on: i) ESCON ii) HIPPI.
b. Explain in brief adaptation layers in ATM.
c. Briefly explain layer and multiplexing scheme in SONET.
6 a. Discuss in brief wavelength conversion. (08 Marks)
b. Explain with neat diagrams, OADM architectures. What i the necessity of reconfigurable OADM? (12 Marks)
a. Discuss various network management function
b. With neat diagrams, explain how connection management protocols layers of the optical layer.
interact with client
8 Write short notes on the following:
a. Alarm Management.
b. QOS in ATM network standard.
c. Subcarrier modulation.
d. Erbium doped filter amplifier.

VTU M.Tech Modern DSP 2015 Question Paper

VTU Question Paper
Department of M.Tech Electronics
M.Tech. Degree Examination
Second Semester
Modern DSP
June / July 2015 Question Paper
Max. Marks:100
Time: 3 Hours

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