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Homework Help: Laser Theory Stuff

  1. Apr 24, 2005 #1
    Hi, I have no clue on how to attempt this problem. I could really use some assistance. Thanks in advance.

    The transisition between two energy levels exhibits a Lorentzian lineshape of central frequency Vo=5*10^14 Hz with a linewidth deltaV=10^12 Hz. The population is inverted so that the small-signal gain coefficient has a peak value of 0.1 cm^-1. The medium has an additional loss coefficient alpha1=0.05 cm^-1. The inverted medium is used to amplify an incident light wave that has a uniform power spectral density centered about Vo and with a bandwidth 2deltaV. How much loss or gain in power cm is experienced by the light wave as it passes through the amplifying medium? Ignore gain saturation effects.
  2. jcsd
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