0)

a)

b)
0)

a)

b)
a)
b)

0)

(192048 Pages:2

A photodiode is constructed of GaAs, which has band gap energy of 1.43 eV at
300 K. What is the cutoff wavelength of this device?

PART C

Answer any two full questions, each carries 20 marks.
Explain the operational principle of an OTDR and write the important performance
parameters.
Compare the working between FP-SOAs and TW-SOAs.
Write a short note on Tunable optical filters?
Explain the operation of Erbium—Doped fiber Amplifier. List out the different
advantages.
What is meant by Fiber Bragg Grating? Write any one application in detail.
What are the differences between fused fiber coupler and waveguide coupler?
Write the general characteristics and working principle of Raman Amplifier.

Why reconfigurable OADMs are more preferred in metro networks?

TR मैप मर ‏بد‎

Page 2of 2

(4)

(7)

(8)
(5)
(12)

(8)
(8)
(8)
(4)