When a signal of intensity 30kwm-2 is applied at the input

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Reference no: EM13584510

When a signal of intensity 3.0kWm-2 is applied at the input of an amplifier of length 10m, the output signal intensity is 36kWm-2

When the input intensity is reduced to 1.0kWm-2 the output is 20kWm-2

a) Calculate the value of the saturation intensity and the small signal gain coefficient??

Another laser amplifier gives an output of 5I0 when it receives input intensity I0 tuned to w0, the centre frequency of the laser transition. When the input radiation istuned to nearby angular frequency w1, an input intensity of 3 I0 is amplified to an output intensity of 7 I0.

b) What is the ratio of the gain-cross sections at the two frequencies?

Reference no: EM13584510

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