Question: 1. Amplification bandwidth for a gaussian atomic transition. Derive an analytic expression for the 3-dB bandwidth Awads of a single-pass laser amplifier which has a

1. Amplification bandwidth for a gaussian atomic transition. Derive an analytic expression for the 3-dB bandwidth Awads of a single-pass laser amplifier which has a gaussian rather than a lorentzian linewidth, as plotted in this section. 1.0 Gaussian line Aw. 0.5 Lorentzian line 10 20 30 midband gain GOB (dB) FIGURE 7.9 Reduction of amplifier bandwidth compared to atomic linewidth for single-pass amplifiers using gaussian and lorentzian atomic lines. The full 3-dB amplifier bandwidth between these points is then twice this value or 3 AwadB = Away GaB(Wa) - 3 (46)

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