Plot the following laser characteristics (listed below) using the steady state rate equation solutions ( see eq. 5.9 and 5.10 Coldren) with N as a parameter below and above Ith. Assume a logarithmic gain/carrier density relation: g=goLn(N/Ntr), where go=2100cm and Ntr=2x1018 cm-3. a) Np vs N b) g vs I c) N VS I d) Np vs I Pout vs I