An optical fiber with an attenuation of 0.4 dB/km is 5 km long. The fiber has n1
Question:
An optical fiber with an attenuation of 0.4 dB/km is 5 km long. The fiber has n1 = 1.53,
n2 = 1.45, and a diameter of 50 μm. Find:
(a) The maximum angle at which rays will enter the fiber and be trapped
(b) The percentage of input power received
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