Question: A Raman amplifier is pumped in the backward direction using 1 W of power. Find the output power when a 1-Wsignal is injected into the

A Raman amplifier is pumped in the backward direction using 1 W of power. Find the output power when a 1-Wsignal is injected into the 5-km-long amplifier. Assume losses of 0.2 and 0.25 dB/km at the signal and pump wavelengths, respectively, and assume too CR = 0.6x103 W/m

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