Lasing Spectrum
The lasing spectrum can be observed by using a optical spectrum analyzer (OSA_2) at the output of the laser. We export the simulation results to Matlab and compilie the data into one graph shown in Fig. 8., it can be seen that at 5 times the threshold current( 5*Ith ), the power is significantly higher than the others. This can be further confirmed in the enlarged graphs in Fig 9. and Fig. 10.