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H1077 Pages: 2

With figure, show how can we measure wave guide loss using prism coupled
method.

Explain the beam propagation method based on Fast Fourier Transform.

PART C

Answer any two full questions, each carries 20 marks.
Define the following characteristics and give the expressions for modulation
bandwidth, power consumption, insertion loss and Isolation of an electro optic
modulator.
With neat diagram, explain the working of an integrated optic RF spectrum
analyser.
How can we measure the temperature using an OIC temperature sensor.
Compare electrons in semiconductor crystals and photons in photonic crystals.
Give the application of nanophotonics device as sensors.

Compare Raman Nath optical modulator with Bragg’s modulator.

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