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 7 of 18

Q61.
A method for increasing the longitudinal mode discrimination of an injection laser which is commonly used?
Discuss
Answer: (d).Shortening of cavity length
Q62.
Conventional cleaved mirror structures are difficult to fabricate with the cavity lengths below __________
Discuss
Answer: (c).50 μm
Q63.
In the given equation, corrugation period is given by lλᵦ/2Nₑ. If λᵦ is the Bragg wavelength, then what does ‘l’ stand for?
Discuss
Answer: (c).Integer order of grating
Q64.
The first order grating (l=1) provide the strongest coupling within the device.
Discuss
Answer: (a).True
Q65.
The semiconductor lasers employing the distributed feedback mechanism are classified in _________________ categories.
Discuss
Answer: (b).Two
Q66.
DBF-BH lasers exhibit low threshold currents in the range of ________________
Discuss
Answer: (d).10 to 20 mA
Q67.
Fabry-Perot devices with BH geometries high modulation speeds than DFB-BH lasers.
Discuss
Answer: (b).False
Q68.
The InGaAsP/InP double channel planar DFB-BH laser with a quarter wavelength shifted first order grating provides a single frequency operation and incorporates a phase shift of ______________
Discuss
Answer: (a).π/2 Radians
Q69.
The narrow line-width obtained under the CW operation for quarter wavelength shifted DFB laser is ________________
Discuss
Answer: (c).3 MHz
Q70.
Line-width narrowing is achieved in DFB lasers by a strategy referred as _______________
Discuss
Answer: (d).Bragg wavelength detuning