2 ia imp.questions

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2nd iiiiiiiia

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1. Explain SONET frame structure.

2. Derive the conditions for optical amplifier spacing in cascaded system.

3. What is power penalty? Derive expression for transmitter power penalty due to extinction ratio.

4. Explain what is gain saturation in EDFA with required mathematical expressions.

5. Describe the techniques of dispersion compensation.

6. Describe ATM . Explain the functions, cell forwarding and virtual path in ATM. 7. Discuss the performance of optical pre-amplifier.

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