Optical Fiber Communication OFC 5th Sem/EE/0524/Feb 2021 Diploma Paper

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Download Previous Year Diploma Paper of Optical Fiber Communication OFC 6th Sem Diploma Feb 2021 Paper

Optical Fiber Communication OFC 6th Sem Diploma Feb 2021 Paper

                                SECTION-A

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

i. List the advantages and disadvantages of Optical fiber communication.
ii. Explain the principle of total internal refraction.
iii. Compare single mode fiber and multimode fiber.
iv. Difference between macro and micro bending losses.
v. What are the properties of good connector?
vi. What is the need of joining fibers and precautions to be taken while joining?
vii. What is the principle of light emitting diode? Explain briefly.
viii. Write short note on Raman amplifier.

                                     SECTION-C

Q3. Attempt any one question.                                                       1×10=10

a. Explain construction and working of Avalanche photodiode (APD) with diagram.
b. What is optical power budgeting. How it is helpful in designing fiber optical system. Explain in detail.
c. Explain the construction and working principle of laser diode with neat diagram.
d. Write a short note on i) Dispersion in fiber optics ii) Wavelength division multiplexing

Optical Fiber Communication OFC 6th Sem Diploma Feb 2021 Paper

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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 optical communication frequency is ______ 

 

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

 

LASER stands for 

Dark current is defined as

 

LASER exhibits

 

In a graded index fiber the refractive index _____ 

 

The optical fiber structure consists of basically three parts

 

Single mode fibers support only _____ mode of

 

The unit of Dispersion is_______ 

 

VCSEL stands for

 

Johnson noise is due to _______

 

A photodiode is used in _ ___

DWDM stands for_____ 

 

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 Feb 2021 Paper

i. List the advantages and disadvantages of Optical fiber communication.
ii. Explain the principle of total internal refraction.
iii. Compare single mode fiber and multimode fiber.
iv. Difference between macro and micro bending losses.
v. What are the properties of good connector?
vi. What is the need of joining fibers and precautions to be taken while joining?
vii. What is the principle of light emitting diode? Explain briefly.
viii. Write short note on Raman amplifier.

Step Index and graded index Fibres 

 

Characteristics of light used in Optical Communication 

Block diagram of an Optical Receiver

 

Different types of functional Amplifiers.

 

What is Splicing

Two Techniques of Splicing 

 

Applications of Optical Communication 

Few applications of Optical Communication 

Optical Fiber Communication OFC 6th Sem Diploma Feb 2021 Paper Click Here

Optical Fiber Communication OFC 6th Sem Diploma Feb 2021 Paper

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Section c :-Optical Fiber Communication OFC 6th Sem Diploma Feb 2021 Paper

Construction and working of Avalanche photodiode (APD) with diagram.

Optical power budgeting. How it is helpful in designing fiber optical system. 

working principle of laser diode with neat diagram.

 i) Dispersion in fiber optics ii) Wavelength division multiplexing

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