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problem 1: How will you measure:

a) Fiber refractive index profile

b) Numerical Aperture in the optical fiber

problem 2: How will you measure:

a) Attenuation

b) Fiber diameter in optical communication system?

problem 3: prepare brief note on the Numerical aperture measurement.

problem 4: What do you mean by the term internal quantum efficiency and external quantum efficiency of the optical source?

problem 5: What do you mean by the term population inversion?

problem 6: Illustrate threshold condition for the Laser oscillations.

problem 7: Describe the term spontaneous emission.

problem 8
: Define the term LED internal quantum efficiency.

problem 9: Compare LEDs with injection laser in respect of its benefits and drawbacks in optical fiber communication.

problem 10: Describe the principle and working of LASER diode. As well describe the modulation of Laser diodes.

Electrical & Electronics, Engineering

  • Category:- Electrical & Electronics
  • Reference No.:- M97410

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