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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 four-port multimode fiber FBT coupler has 50 μW optical power launched into port 1. The measured output power at ports 2,3 and 4 are 0.003, 23.0 and 24.5 μW respectively. Determine the excess loss. |
A. | 0.22 dB |
B. | 0.33 dB |
C. | 0.45 dB |
D. | 0.12 dB |
Answer» B. 0.33 dB | |
2. |
Couplers insertion loss is same as that of excess loss. |
A. | True |
B. | False |
Answer» C. | |
3. |
Which is the most common method for manufacturing couplers? |
A. | Wavelength division multiplexing |
B. | Lateral offset method |
C. | Semitransparent mirror method |
D. | Fused bi-conical taper (FBT) technique |
Answer» E. | |