Optical Fiber Connections MCQs

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

Optical Fiber Connections MCQs | Page 1 of 7

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Q1.
A measure of amount of optical fiber emitted from source that can be coupled into a fiber is termed as ______________

a.

Radiance

b.

Angular power distribution

c.

Coupling efficiency

d.

Power-launching

Discuss
Answer: (c).Coupling efficiency
Q2.
The ratio r = (n1 – n)/(n1 – n) indicates ____________

a.

Fresnel reflection

b.

Reflection coefficient

c.

Refraction coefficient

d.

Angular power distribution coefficient

Discuss
Answer: (b).Reflection coefficient
Q3.
A GaAs optical source having a refractive index of 3.2 is coupled to a silica fiber having a refractive index of 1.42. Determine Fresnel reflection at interface in terms of percentage.

a.

13.4%

b.

17.4%

c.

17.6%

d.

14.8%

Discuss
Answer: (d).14.8%
Q4.
A particular GaAs fiber has a Fresnel reflection magnitude of 17.6% i.e. 0.176. Find the power loss between the source and the fiber?

a.

0.86 dB

b.

0.78 dB

c.

0.84 dB

d.

0.83 dB

Discuss
Answer: (c).0.84 dB
Q5.
Two joined step index fibers are perfectly aligned. What is the coupling loss of numerical aperture are NAʀ= 0.26 for emitting fiber?

a.

-0.828 dB

b.

-0.010 dB

c.

-0.32 dB

d.

0.32 dB

Discuss
Answer: (b).-0.010 dB
Q6.
Two joined graded index fibers that are perfectly aligned have refractive indices αʀ = 1.93 for receiving fiber αᴇ = 2.15 for emitting fiber. Calculate the coupling loss.

a.

0.23 dB

b.

0.16 dB

c.

0.82 dB

d.

0.76 dB

Discuss
Answer: (a).0.23 dB
Q7.
How many types of misalignments occur when joining compatible fiber?

a.

One

b.

Two

c.

Five

d.

Three

Discuss
Answer: (d).Three
Q8.
Losses caused by factors such as core-cladding diameter, numerical aperture, relative refractive index differences, different refractive index profiles, fiber faults are known as ____________

a.

Intrinsic joint losses

b.

Extrinsic losses

c.

Insertion losses

d.

Coupling losses

Discuss
Answer: (a).Intrinsic joint losses
Q9.
A step index fiber has a coupling efficiency of 0.906 with uniform illumination of all propagation modes. Find the insertion loss due to lateral misalignment?

a.

0.95 dB

b.

0.40 dB

c.

0.42 dB

d.

0.62 dB

Discuss
Answer: (c).0.42 dB
Q10.
A graded index fiber has a parabolic refractive index profile (α=2) and core diameter of 42 μm. Estimate an insertion loss due to a 2 μm lateral misalignment when there is index matching and assuming there is uniform illumination of all guided modes only.

a.

0.180

b.

0.106

c.

0.280

d.

0.080

Discuss
Answer: (d).0.080
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