Download Previous Year Diploma Paper of Optical Fiber Communication OFC 6th Sem Diploma May 2019 Paper

Optical Fiber Communication OFC 6th Sem Diploma May 2019 Paper

                                                SECTION-A

Q1. Do as directed.                                                                                                              15×1=15

       a. LASER stands for Light Amplification and Stimulated Emission of Radiation.
       b. An optical detector converts Light signal to Electrical signal.
       c. The refractive index of the core is less than cladding. (T/F) False
       d. Define critical angle.
       e. SLED stands for Surface Light Emitting Diode .
       f. V-groove splice is ______ a type of splice.
       g. Numerical aperture is the light gathering capability of optical fiber. (T/F) True
       h. Dispersion causes light pulse  Spread 
        i. Define Snell’s Law.
        j. The wavelength of optical fiber communication is .
       k. Rayleigh scattering always occur in reverse direction. (T/F)
       l. TWA stands for 
      m. An LED is a coherent source of light. (T/F) False
       n. EDFA stands for Erbium-Doped Fiber Amplifier .
      o. Define dark current.

                                      SECTION-B

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

     i. List the advantages and disadvantages of optical fiber communication.
     ii. Write a short note on TIR.
    iii. What is numerical aperture? What is its significance in fiber optics?
    iv. What do you mean by optical splicing? Explain fusion splicing method.
    v. Explain optical power budgeting.
    vi. Write a short note on the following.
       a. Spontaneous Emission
       b. Stimulated Emission
    vii. What are the different modes of propagation used in optical fiber?

                                     SECTION-C

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

      a. Discuss the elements of Optical fiber communication in detail.
       b. Explain dispersion and its types in detail.
     c. Explain the construction and working of SOA in detail.
     d. Write note  on (any two)
          i. Wavelength Division Multiplexing
         ii. Critical Angle
         iii. Noise in optical fiber

Optical Fiber Communication OFC 6th Sem Diploma May 2019 Paper

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Section a FILL IN THE BLANKS Optical Fiber Communication OFC 6th Sem Diploma May 2019 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

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

Discuss the elements of Optical fiber communication in detail.

Elements of Optical fiber communication in detail
       

Explain dispersion and its types in detail.

Dispersion and its types in detail.
     

Explain the construction and working of SOA in detail.

Construction and working of SOA in detail.
     

Write note  on (any two)    

Write note  on (any two)
         

i. Wavelength Division Multiplexing

i. Wavelength Division Multiplexing
        r

ii. Critical Angle

ii. Critical Angle
         

iii. Noise in optical fiber

iii. Noise in optical fiber

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