Optical Sources MCQs

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

Optical Sources MCQs | Page 4 of 18

Q31.
In semiconductor injection laser, narrow line bandwidth is of the order?
Discuss
Answer: (a).1 nm or less
Q32.
Injection laser have a high threshold current density of __________
Discuss
Answer: (a).10⁴ Acm⁻² and more
Q33.
ηᴛ is known as slope quantum efficiency.
Discuss
Answer: (b).False
Q34.
The total efficiency of an injection laser with GaAs active region is 12%. The applied voltage is 3.6 V and band gap energy for GaAs is 2.34 eV. Determine external power efficiency.
Discuss
Answer: (a).7.8 %
Discuss
Answer: (b).Roughening the edges of device
Q36.
A particular laser structure is designed so that the active region extends the edges of devices.
Discuss
Answer: (a).True
Q37.
Gain guided laser structure are __________
Discuss
Answer: (c).DH injection laser
Q38.
Laser modes are generally separated by few __________
Discuss
Answer: (b).Tenths of nanometer
Discuss
Answer: (a).Smaller than broadened transition line-width
Discuss
Answer: (d).Reducing the length of cavity
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