Direct Detection Receiver and Optical Amplification MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Direct Detection Receiver and Optical Amplification, 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 Direct Detection Receiver and Optical Amplification 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 Direct Detection Receiver and Optical Amplification mcq questions that explore various aspects of Direct Detection Receiver and Optical Amplification problems. Each MCQ is crafted to challenge your understanding of Direct Detection Receiver and Optical Amplification 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 Direct Detection Receiver and Optical Amplification 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 Direct Detection Receiver and Optical Amplification. 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 Direct Detection Receiver and Optical Amplification knowledge to the test? Let's get started with our carefully curated MCQs!

Direct Detection Receiver and Optical Amplification MCQs | Page 1 of 11

Q1.
_____________ refers to any spurious or undesired disturbances that mask the received signal in a communication system.
Discuss
Answer: (b).Noise
Q2.
How many types of noise are observed because of the spontaneous fluctuations in optical fiber communication systems?
Discuss
Answer: (d).Three
Q3.
______________ is caused due to thermal interaction between the free electrons and the vibrating ions in the conduction medium.
Discuss
Answer: (a).Thermal noise
Q4.
A small leakage current still flows from the device terminals even if there is no optical power incident on the photo detector.
Discuss
Answer: (a).True
Q5.
___________ distribution provides the description the random statistics of light emitted in black body radiation.
Discuss
Answer: (d).Bose-Einstein
Q6.
The probability of zero pairs being generated when a light pulse is present is given by which of the following equation?
Discuss
Answer: (a).P(0/1) = exp(-Zₘ)
Q7.
The minimum pulse energy needed to maintain a given bit-error-rate (BER) which any practical receiver must satisfy is known as ___________
Discuss
Answer: (b).Quantum limit
Q8.
A digital optical fiber communication system requires a maximum bit-error-rate of 10⁻⁹. Find the average number of photons detected in a time period for a given BER.
Discuss
Answer: (c).20.7
Q9.
For a given optical fiber communication system, P(e) = 10⁻⁹, Zₘ = 20.7, f = 2.9×10¹⁴, η = 1. Find the minimum pulse energy or quantum limit.
Discuss
Answer: (a).3.9×10⁻¹⁸
Q10.
An analog optical fiber system operating at wavelength 1 μm has a post-detection bandwidth of 5MHz. Assuming an ideal detector and incident power of 198 nW, calculate the SNR (f = 2.99×101¹⁴ Hz).
Discuss
Answer: (c).50
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