Coherent and Phase Modulation MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Coherent and Phase Modulation, a fundamental topic in the field of Optical Communication. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Coherent and Phase Modulation MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Coherent and Phase Modulation mcq questions that explore various aspects of Coherent and Phase Modulation problems. Each MCQ is crafted to challenge your understanding of Coherent and Phase Modulation principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Optical Communication tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Coherent and Phase Modulation MCQs are your pathway to success in mastering this essential Optical Communication topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Coherent and Phase Modulation. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Coherent and Phase Modulation knowledge to the test? Let's get started with our carefully curated MCQs!

Coherent and Phase Modulation MCQs | Page 3 of 6

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Q21.
___________ offers the potential for improving the coherent optical receiver sensitivity by increasing the choice of signalling frequencies.
Discuss
Answer: (a).MFSK
Q22.
Eight level FSK and binary PSK yields an equivalent sensitivity.
Discuss
Answer: (a).True
Q23.
External modulation for ________ modulation format allows the most sensitive coherent detection mechanism.
Discuss
Answer: (c).PSK
Q24.
_________ can potentially provide spectral conservation through the use of multilevel signalling.
Discuss
Answer: (a).M-ary PSK
Q25.
The digital transmission on implementation of polarization modulation which involves polarization characteristics of the transmitted optical signal is known as _____________
Discuss
Answer: (d).Polarization shift keying
Q26.
_________ heterodyne detection does not require phase matching between the incoming signal and the local oscillator.
Discuss
Answer: (b).Asynchronous
Q27.
In ___________ detection, the phase of the local oscillator signal is locked to the incoming signal.
Discuss
Answer: (a).Homodyne
Q28.
The introduction of nonlinear element within the ______ is necessary to enable efficient carrier recovery.
Discuss
Answer: (d).PLL
Q29.
What is the main attraction of the optical homodyne detection?
Discuss
Answer: (a).Receiver sensitivity
Q30.
The phase difference between the local oscillator and the source must be ________ for high sensitivity reception.
Discuss
Answer: (d).Near zero
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