Calculation of spectral linewidth reduction of external-cavity strong-feedback semiconductor lasers

Calculation of spectral linewidth reduction of external-cavity strong-feedback semiconductor lasersHaiyin Sun, Steve Menhart, and Alois AdamsIt is shown that, to calculate the spectral linewidth reduction of an external-cavity semiconductor laserwith strong external feedback, the complex laser field equation and the general linewidth-reductionequations must be modified to..