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 18 of 18

Q171.
When a constant d.c. drive current is applied to device, the optical o/p power is 320 μm. Determine optical o/p power when device is modulated at frequency 30 MHz with minority carrier recombination lifetime of LED i.e. 5ns.
Discuss
Answer: (d).2.29*10⁻⁴
Q172.
The optical power at 20 MHz is 246.2 μW. Determine dc drive current applied to device with carrier recombination lifetime for LED of 6 ns.
Discuss
Answer: (a).3.48*10⁻⁴
Q173.
Determine the 3 dB electrical bandwidth at 3 dB optical bandwidth Bopt of 56.2 MHz.
Discuss
Answer: (b).28.1
Q174.
The 3 dB electrical bandwidth B is 42 MHz. Determine 3 dB optical bandwidth Bopt.
Discuss
Answer: (b).59.39
Q175.
Determine degradation rate βrif constant junction temperature is 17 degree celsius.
Discuss
Answer: (a).7.79*10⁻¹¹
Q176.
Determine CW operating lifetime for LED with βrt = -0.58 and degradation rate βr = 7.86*10⁻¹¹ h⁻¹.
Discuss
Answer: (c).22.72