Optical Communication and Networks Question Bank 2014

Anna University, Chennai

Anna_University_Logo.svg

PART-B

UNIT 1 - OPTICAL NETWORKING COMPONENTS

1. Explain in detail the generation of optical networks

2. Explain the operating principle of Couplers

3. Describe in detail the working principle of isolators and circulators

4. Explain the various grating techniques involved in optical networks

5. Explain the operation of Fabry-perot filters

6. Explain the operation of Mach-zehnder interferometer

7. Explain Acousto-optic tunable filter

8. Explain the operation of Erbium -Doped fiber Amplifier

9. Explain the importance of optical switches in networks

10. Write the necessity of wavelength converters in optical networks?


UNIT 2- SONET AND SDH NETWORKS

1. Discuss in detail about the problems suffered by Plesiochronous digital hierarchy?

2. Explain the Multiplexing structure employed in SONET/SDH network?

3. Explain the elements of SONET/SDH infrastructure?

4. Write short notes on SONET/SDH layers.

5. Write short notes on SONET/SDH Frame

6. Describe in detail about SONET/SDH Ring Architecture?

7. Discuss in detail the Network management systems

8. Illustrate in detail about protection mechanism


UNIT -3 BROADCAST AND SELECT NETWORKS

1. Explain the various topologies for broadcast networks.

2. Explain in detail About the MEDIA ACCESS PROTOCOL.

3. Explain the various kinds of broadcast and select test beds

4. Write short notes on Traffic classes.


UNIT 4 -WAVELENGTH ROUTING NETWORKS

1. Describe in detail about node design for wavelength routing networks

2. Explain the various traffic models of wavelength routing networks

3. Discuss about the static network of wavelength routing networks

4. Explain the various routing and wavelength assignment methods

5. Explain the various wavelengths routing test beds


UNIT-HIGH CAPACITY NETWORKS

1. Explain space division multiplexing approach, time division multiplexing approach, and wave length division multiplexing approach

2. Explain the various application areas of optical networks

3. Write short notes on OTDM

4. Explain the synchronization techniques involved in broadcast optical network

5. Explain in detail about Switch based networks.

6. Discuss in detail the various OTDM test beds

7. Explain about Multiplexing & Demultiplexing of OTDM