Optimized signal control in frequency-doubled laser sources

Abstract

The present disclosure relates generally to semiconductor lasers and laser projection systems. According to one embodiment of the present disclosure, a method of operating a laser projection system is provided. According to the method, the laser projection system is utilized to display a sequence of pixelized image frames comprising an alternating sequence of relatively high intensity active projection periods Modand relatively low intensity inactive projection periods Mod. A complementary control signal transitions between an active state Qduring the relatively high intensity active projection periods Modand an inactive state Qduring the relatively low intensity inactive projection periods Mod. The transition of the complementary control signal from the inactive state Qto the active state Qis conditioned to anticipate initiation of relatively high intensity active projection periods Modsuch that it is optimized upon initiation of the relatively high intensity active projection periods Mod. Additional embodiments are disclosed and claimed.