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 5 of 18

Q41.
A correct DH structure will restrict the vertical width of waveguide region is?
Discuss
Answer: (d).Less than 0.4 μm
Q42.
The external power efficiency of an injection laser with a GaAs is 13% having band gap energy of 1.64 eV. Determine external power efficiency.
Discuss
Answer: (a).0.198
Q43.
In multimode injection lasers, the construction of current flow to the strip is obtained in structure by __________
Discuss
Answer: (c).Implantation outside strip region with protons
Q44.
What is the strip width of injection laser?
Discuss
Answer: (c).Less than 10 μm
Q45.
Some refractive index variation is introduced into lateral structure of laser.
Discuss
Answer: (a).True
Q46.
Buried hetero-junction (BH) device is a type of _____________ laser where the active volume is buried in a material of wider band-gap and lower refractive index.
Discuss
Answer: (d).Strong index guiding lasers.
Q47.
In Buried hetero-junction (BH) lasers, the optical field is confined within __________
Discuss
Answer: (d).Both transverse and lateral direction
Q48.
A double-channel planar buried hetero-structure (DCP BH) has a planar active region, the confinement material is?
Discuss
Answer: (b).InGaAsP
Discuss
Answer: (a).Through regrowth of semi-insulating material
Q50.
Quantum well lasers are also known as __________
Discuss
Answer: (b).DH lasers
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