Multiple Choice
A four-port multimode fiber FBT coupler has 50 ?Woptical power launched into port 1. The measured output power at ports 2,3 and 4 are 0.003, 23.0 and 24.5 ?W respectively. Determine the excess loss.
A) 0.22 db
B) 0.33 db
C) 0.45 db
D) 0.12 db
Correct Answer:

Verified
Correct Answer:
Verified
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