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EC6702 Optical Communication and Networks Important questions Regulation 2013 Anna University

EC6702 Optical Communication and Networks Important questions

EC6702 Optical Communication and Networks Important questions Regulation 2013 Anna University free download. Optical Communication and Networks EC6702 Important questions pdf free download.

Sample EC6702 Optical Communication and Networks Important questions:

1. What are the limitations of optical fiber communication systems?

 Optical fiber is made up of glass. Because of the impurities present with the
fiber It results in absorption, which leads to loss of light in the optical fiber.
 It is costly.
 Maximum limitation of the bandwidth of the signals can be carried by the
fiber due to spreading of pulse.

2. What is the necessity of cladding for an optical fiber?

The necessity of cladding for an optical fiber is
 To avoid leakage of light from the fiber
 To avoid mechanical strength for the fiber
 To protect core from scratches and other mechanical damages. (EC6702 Optical Communication and Networks Important questions)

3. List the advantages of mono-mode fiber.

The advantages of mono-mode fiber are
 No internal dispersion
 Information capacity of single mode fiber is large.

4. Define – Acceptance Angle

The maximum angle Фmax with which a ray of light can enter rough the entrance
end of the fibre and still be totally internally reflected is called acceptance angle
of the fiber. (EC6702 Optical Communication and Networks Important questions)

5. List the uses of optical fiber.

The uses of optical fibers are as follows
 To act as light source at the inaccessible places
 To transmit the optical images. (example: endoscopy)To act as sensors
to do mechanical, electrical and magnetic measurements
 To transmit the information which are in the form of coded signals
of the telephone communications, computer data etc.

(EC6702 Optical Communication and Networks Important questions)

Subject Name Optical Communication and Networks
Subject code EC6702
Regulation 2013

EC6702 Optical Communication and Networks Important questions click here to download

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