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Optical Fiber Communication OFC 6th Sem Diploma Dec 2018 Paper

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Optical Fiber Communication OFC 6th Sem Diploma Dec 2018 Paper

                                                SECTION-A

Q1. Do as directed.                                                                                                              15×1=15

     a. The optical power budget is usually expressed in .
     b. The unit of dispersion is .
     c. The refractive index of multimode fiber changes .
     d. The pre-amplifier are used to provide small gain (T/F).
     e. SLED Stands for .
     f. Snell’s law states that .
    g. __________ tells us about the information carrying capacity of the channel.
    h. Semiconductor LD’s emits coherent light (T/F).
     i. MFD stands for .
     j. EDFA stands for

                                      SECTION-B

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

        i. Explain avalanche photodiode with suitable diagram.
       ii. Define Total Internal Reflection (TIR)? How it is useful in optical fiber communication?
      iii. Write advantages of optical fiber communication.
      iv. Explain the basic structure of an optical fiber?
      v. Explain the principle of light penetration in optical fiber cable.
     vi. What are the difference between single mode and multi mode fiber?
     vii. Write short note on :
          a) Raman Scattering b) Absorption loss
     viii. What is dispersion? What are the different types of dispersion?
.

                                     SECTION-C

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

      a. What do you mean by optical light source? Explain different types of optical sources.
      b. Draw and explain block diagram of optical fiber communication link.
      c. Define optical amplifiers. What are the different types of optical amplifiers? Explain briefly.
      d. Write Short notes on the following. (any two)
       i. Stimulated emission
       ii. Optical detectors
       iii. SOA applications

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

Define: Critical Angle, Snell’s Law ?

Critical Angle

Snell’s Law

What are Step Index and graded index Fibres ?

Step Index and graded index Fibres 

Discuss the characteristics of light used in Optical Communication ?

Characteristics of light used in Optical Communication 

Draw the block diagram of an Optical Receiver

Block diagram of an Optical Receiver

Describe the different types of functional Amplifiers.

Different types of functional Amplifiers.

What is Splicing? Explain any two techniques of Splicing ?

What is Splicing

Two Techniques of Splicing 

List a few applications of Optical Communication ?

Applications of Optical Communication 

List a few applications of Optical Communication ?

Few applications of 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 May 2015 Paper

What are the advantages and disadvantages of Optical Fiber Communication.

Advantages and disadvantages of Optical Fiber Communication.

List the various types of LED’s. Discuss the various types of LED structures

 Types of LED and its structures.

Describe Optical Power Budgeting ?

Optical Power Budgeting 

What is the need of an Optical Amplifier? Discuss SOA.

Need of an Optical Amplifier

Discuss SOA Amplifier

Explain the different types of losses in Optical Fibre Communication.

Different types of losses in Optical Fibre Communication.

Write short notes on (any two)

short notes on (any two)

Effect of dispersion on data Rate

  1. Effect of dispersion on data Rate

2.Whats is WDM

2.WDM

3.Historical perspective of Optical Communication

  3. Historical perspective of Optical Communication

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