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Optical Fiber Communication OFC 6th Sem Diploma Dec 2015 Paper

Download Previous Year Diploma Paper of Optical Fiber Communication OFC 6th Sem Diploma Dec 2015 Paper

Optical Fiber Communication OFC 6th Sem Diploma Dec 2015 Paper

                                                SECTION-A

Q1. Do as directed.                                                                                                              10×1.5=15

     (i) LASER stands for Light Amplification Stimulated Emission of Radiations.
    (ii) APD stands for anti-photo diode. (T/F)
   (iii) Define dark current.
   (iv) Define refraction.
   (v) WDM stands for Wavelength Division Multiplexing .
  (vi) Optical fiber is costlier than wires. (T/F)
  vii) Name two fiber splicing techniques.
  (viii) Intermodal dispersion occurs in multimode fibers. (T/F)
  (ix) Unit for measurement of attenuation in optical fiber is Decibel (dB) .
   (x) Write two properties of LASER.

                                      SECTION-B

Q2. Attempt any five questions.                                                                    5×6=30

     (i) Explain PIN diode as optical detector.
    (ii) What do you mean by bending losses? Discuss micro and macro bending.
    (iii) Discuss multimode graded index fiber and multimode step index fibre.
    (iv) Discuss rise time budget and link power budget.
    (v) What is splicing in fiber optics? Explain briefly.
    (vi) Explain various advanatges and disadvantages of optical fiber communication.
    (vii) Write short notes any of TWO:
          (a) Multiplexing
          (b) Population inversion
          (c) Modulation methods
    (viii) Discuss different types of amplifiers used in optical communication.

                                     SECTION-C

Q3. Attempt any three questions.                                                       3×10=30

    (i) What is dispersion? Explain in detail its different types.
   (ii) Explain working principle of optical fiber communication system. Discuss various applications of fiber optics.
   (iii) Draw and explain block diagram of optical receiver and transmitter circuit.
   (iv) Explain in detail working of LED and its different types.

Optical Fiber Communication OFC 6th Sem Diploma DEC 2015 Paper


Get Started

https://www.youtube.com/watch?v=y_wJffQkeWo&list=PLA9Q9SDZ781WXNAWit379A4CRLMvjGiUw&index=6&t=0shttps://www.youtube.com/watch?v=mV41CMWonN4&list=PLA9Q9SDZ781WXNAWit379A4CRLMvjGiUw&index=7&t=0shttps://www.youtube.com/watch?v=M_RR6LVICp0&list=PLA9Q9SDZ781WXNAWit379A4CRLMvjGiUw&index=20&t=0shttps://www.youtube.com/watch?v=3BNQLUnbNpYhttps://www.youtube.com/watch?v=ZDkyNOzoG8A&list=PLA9Q9SDZ781WXNAWit379A4CRLMvjGiUw&index=8&t=0shttps://www.youtube.com/watch?v=s0LVPE0Q3LE&list=PLA9Q9SDZ781WXNAWit379A4CRLMvjGiUw&index=14&t=0s

Section a FILL IN THE BLANKS Optical Fiber Communication OFC 6th Sem Diploma May 2015 Paper

The number of bits transmitted per second over a channel is called _______.

The number of bits transmitted per second over a channel is called          .

The optical communication frequency is ________

The optical communication frequency is ______ 

The principle of light propagation in optical fibre is based on _______

The principle of light propagation in optical fibre is based on _____

LASER stands for  ___________.

LASER stands for 

Dark current is defined as ___________

Dark current is defined as

LASER exhibits ___________

LASER exhibits

In a graded index fiber the refractive index _____ 

In a graded index fiber the refractive index _____ 

The optical fiber structure consists of basically three parts __________

The optical fiber structure consists of basically three parts

The process of extracting mineral from the earth is known as ______.

Single mode fibers support only _____ mode of

The unit of Dispersion is _________

The unit of Dispersion is_______ 

VCSEL stands for _________.

VCSEL stands for

Johnson noise is due to _________.

Johnson noise is due to _______

A photodiode is used in _________

A photodiode is used in _ ___

DWDM stands for_____ 

DWDM stands for_____ 

The heart of an optical receiver is the _________

The heart of an optical receiver is the _________

Optical Fiber Communication OFC 6th Sem Diploma May 2015 Solved Paper Click Here

Section B :Optical Fiber Communication OFC 6th Sem Diploma DEC 2015 Paper

Explain PIN diode as optical detector.

PIN diode as optical detector.   

What do you mean by bending losses? Discuss micro and macro bending.

Bending losses

Discuss micro and macro bending.    

Discuss multimode graded index fiber and multimode step index fibre.

Multimode graded index fiber and multimode step index fibre.   

Discuss rise time budget and l ?ink power Budget

Rise time budget and link power Budget.    

What is splicing in fiber optics? Explain briefly.

Splicing in fiber optics    

Explain various advanatges and disadvantages of optical fiber communication.

Advanatges and disadvantages of optical fiber communication.    

Write short notes any of TWO:

Write short notes any of TWO:        

(a) Multiplexing

(a) Multiplexing        

Toggle Title

(b) Population inversion
        

(c) Modulation methods

(c) Modulation methods
   

Discuss different types of amplifiers used in optical communication.

viii) Types of amplifiers used in optical communication.

Optical Fiber Communication OFC 6th Sem Diploma May 2015 Paper Click Here

Optical Fiber Communication OFC 6th Sem Diploma May 2015 Paper


Get Started

https://www.youtube.com/watch?v=UHX6f8TIvX8https://www.youtube.com/watch?v=M_RR6LVICp0https://www.youtube.com/watch?v=mV41CMWonN4https://www.youtube.com/watch?v=s0LVPE0Q3LE&list=PLA9Q9SDZ781WXNAWit379A4CRLMvjGiUw&index=14&t=0s

Section c :-Optical Fiber Communication OFC 6th Sem Diploma DEC 2015 Paper

 What is dispersion? Explain in detail its different types

Dispersion?its different types.

Explain working principle of optical fiber communication system. Discuss various applications of fiber optics.

Working principle of optical fiber communication system.

Discuss various applications of fiber optics.

Draw and explain block diagram of optical receiver and transmitter circuit.

Block diagram of optical receiver and transmitter circuit.

Explain in detail working of LED and its different types.

Working of LED and its different types.

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