AN IMPROVED TIME-DOMAIN TRAVELING-WAVE MODEL FOR VERTICAL-CAVITY SURFACE-EMITTING LASERS

The use of the time-dependent transfer matrix and wide-angle beam prop agation method is proposed to improve the computational speed and accu racy of a recently developed time-domain traveling-wave model of verti cal-cavity surface-emitting lasers, With suitable utilization of the t ransfer matrix, significant reduction of the total execution time of t he traveling-wave model can be obtained, in addition, the use of wide- angle beam propagation method can minimize the calculation error of th e traveling-wave model due to the diffraction of light from the small aperture of the laser cavity.