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I How to get plot (optical gain of GaAs)?

  1. Mar 30, 2016 #1
    How can i calculate this plot (photon energy dependence of the optical gain (or loss = negative gain) of GaAs with the injected carrier density as a parameter?
    Show calculated plot based on this equation
    plot.jpg equ.jpg
    Given parameter:
    mc=0.067 me; (effective mass of electrons in conduction band)
    mv=0.48 me; (effective mass of holes in valence band)
    T2~0.5 ps; (lifetime for coherent interaction of electrons with a monochromatic field)
    Eg=1.43 eV; (energy band gap of GaAs)
    taung~3x10-9s; (recombination lifetime)
    1/mr=1/mc+1/mv; ( reduced effective mass)
    n= 3.6: (refractive index for GaAs)

    How can i find this value
    ħω (energy of photon)- this should be ħω>Eg. How can i determine this energy?
    ω0 ( if i known λ0, can i get ω0? (ω=c/λ))

    Really I need your help. I am new for semiconductor laser. Please any one help me.
  2. jcsd
  3. Apr 4, 2016 #2
    Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
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