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Determine the Overall Power Conversion Efficiency of Lens Coupled SLED

Question 18

Multiple Choice

Determine the overall power conversion efficiency of lens coupled SLED having forward current of 20 mA and forward voltage of 2 V with 170 ?Wof optical power launched into multimode step index fiber.


A) 1.256*10?5
B) 4.417*102
C) 4.25*10-3
D) 2.14*10-3

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