MCQOPTIONS
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MCQOPTIONS
This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Optical Communications Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A graded index fiber has a parabolic refractive index profile (α=2) and core diameter of 42μm. 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 |
| Answer» E. | |
| 2. |
Two joined graded index fibers that are perfectly aligned have refractive indices αR = 1.93 for receiving fiber αE = 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 |
| Answer» B. 0.16 dB | |
| 3. |
The ratio r = (n1 – n)/(n1 – n) indicates ____________ |
| A. | Fresnel reflection |
| B. | Reflection coefficient |
| C. | Refraction coefficient |
| D. | Angular power distribution coefficient |
| Answer» C. Refraction coefficient | |