3. For an active medium of length L=10cm and having lasing atoms with cross section area andpopulation inversion o (N2 – N1) = 0.1 cm-!, calculate the outgoing photon flux Fout after 3passes through the medium as shown in the illustration. Assume the initial photon flux is Fo =le20 s- cm2 and the output flux is the sum of the two transmitted fluxes as shown.F(2) = F(0)exp(o(N2 – N¡)z)If the photons have wavelength A-1.06 µm, what is the output power density in watts/cm2? Whatis power density if wavelength 2-10.6 µm?R=0.8R=1.0L=10 cmF1F2FsFoFout

Given, Length, L=10cmL=z=0.1m σ(N2-N1)=0.1cm-1σ(N2-N1)=10m-1 Initial photon flux,F0=1×1020s-1 The…

Answered: 3. For an active medium of length…

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