UNIT 1 : OVER VIEW OF FIBER OPTIC COMMUNICATION

 


 UNIT 1

OVER VIEW OF FIBER OPTIC COMMUNICATION


SHORT ANSWER QUESTIONS 

1)  Advantage of light wave in communication system over EM wave?

2)  Classify Optical Fiber based on Core Dia-meter  & give approximate value of core diameter ?

3)  List extrinsic losses in Optical Fiber ?

4)   Define Snell’s Law ,Critical angel , Numerical Aperture ,Acceptance Angle , Cone of Acceptance  ?

5)   Classify Optical Fiber Based on Refractive Index Profile ?

6)   Classify Optical Fiber Based on Modes ?

7)   Classify Various Losses in Optical Fibers ?

8)  Classify different Types Of  Dispersion in optical ?

9)   Compare Step index and Graded index ?

10)  Compare between multi mode & Single mode Fibers ?

11)   Difference between intrinsic & extrinsic losses ?


ESSAY TYPE QUESTIONS 

1) Explain structure of optical fiber?

2) Define Snell’s law & Explain light wave propagation in OFC?

3) Classify optical fiber based on a) Refractive index  b) Mode  c) Core Dia-meter

4)  (a) Explain various losses in OFC ?

     (b) Short notes on intrinsic, extrinsic losses & dispersions occur in OFC?

5)  (a) Explain need for WDM in OFC ? Types of WDM ?

     (b) Explain block diagram of WDM? 

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