The effect of source and load resistances on the bistable behavior of multi
quantum-well laser diodes is studied. Lower values of source resistance are
found to affect the threshold current with a slight change in the hysteris
is width. Also, the turn ON delay is found to decrease exponentially with t
he increase in source resistance, Lower values of load resistance leads to
smaller hysterisis width, and for values less than 125 Omega, for the devic
e under study with an input resistance (R-in) of 1 Omega, an astable behavi
or is observed when triggered by an electrical pulse in the gain section.