Optical control of IMPATT oscillator dynamics

The results of detailed computer simulations of the effect of optically generated carriers on the dynamics of an IMPATT diode oscillator are presented. Both small- and large-amplitude oscillations are examined over wide ranges in operating conditions and optical power level. Agreement is obtained between the theoretical results and experimental observations. Key results of the calculations are used to establish the extent to which the amplitude and frequency of a conventional IMPATT oscillator can be optically modulated as well as the operating conditions under which this control is optimized.