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
The number of bits transmitted per second over a channel is called         .
Â
The optical communication frequency is ______Â
Â
The principle of light propagation in optical fibre is based on _____
Â
LASER stands forÂ
Dark current is defined as
Â
LASER exhibits
Â
In a graded index fiber the refractive index _____Â
Â
The optical fiber structure consists of basically three parts
Â
Single mode fibers support only _____ mode of
Â
The unit of Dispersion is_______Â
Â
VCSEL stands for
Â
Johnson noise is due to _______
Â
A photodiode is used in _ ___
DWDM stands for_____Â
Â
The heart of an optical receiver is the _________
Optical Fiber Communication OFC 6th Sem Diploma May 2015 Solved Paper Click Here
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 FibresÂ
Â
Characteristics of light used in Optical CommunicationÂ
Block diagram of an Optical Receiver
Â
Different types of functional Amplifiers.
Â
What is Splicing
Two Techniques of SplicingÂ
Â
Applications of Optical CommunicationÂ
Few applications of Optical CommunicationÂ
Optical Fiber Communication OFC 6th Sem Diploma Feb 2021Â Paper Click Here
Construction and working of Avalanche photodiode (APD) with diagram.
Optical power budgeting. How it is helpful in designing fiber optical system.Â
working principle of laser diode with neat diagram.
 i) Dispersion in fiber optics ii) Wavelength division multiplexing