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 13 of 18

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Q121.
Replacing Sn with Eu, Cd or Ge in some _________________ the band gap.
Discuss
Answer: (d).Increases
Q122.
Lasing obtained in __________ when 191 mW of pump light at a wavelength of 0.477 ฮผm is launched into laser.
Discuss
Answer: (c).Doped Fluoro-zirconate fiber
Q123.
The thulium doped fiber laser when pumped with alexandrite laser output at 0.786 ฮผm, the laser emits at ___________
Discuss
Answer: (c).2.3 ฮผm
Q124.
The diode-cladding-pumped Erbium praseodymium-doped fluoride device operates at wavelength.
Discuss
Answer: (a).Around 3 ฮผm
Q125.
A technique based on inter-sub band transition is known as ___________
Discuss
Answer: (d).Quantum cascading
Q126.
In a QC laser, a same electron can emit number of photons.
Discuss
Answer: (a).True
Q127.
The phenomenon resulting in the electrons to jump from one state to another each time emitting of photon is known as ___________
Discuss
Answer: (d).Quantum confinement
Q128.
A QC laser is sometimes referred as ___________
Discuss
Answer: (a).Unipolar laser
Q129.
In QC lasers, it is possible to obtain different output signal wavelengths. This can be achieved by ___________
Discuss
Answer: (d).Selecting layers of different thickness
Q130.
QC lasers ______________ the performance characteristics.
Discuss
Answer: (c).Improves