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
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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 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
Dark current is defined as ___________
Dark current is defined as
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
Johnson noise is due to _________.
Johnson noise is due to _______
A photodiode is used in _________
A photodiode is used in _ ___
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:
(a) Multiplexing
(b) Population inversion
(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.
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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