High brightness LEDs (HB LEDs) and laser diodes are becoming increasingly popular in a variety of applications. Automotive lighting, aircraft lighting, cell phones, televisions and computer monitors are just a few areas where LEDs are becoming the lighting technology of choice. In addition, high-power laser diodes are being used for a variety of industrial cutting applications as well as optical pumps for solid state lasers (DPSSL). These applications often require pulsed quasi-continuous wave (QCW) waveforms to achieve the desired light profile or a high-intensity output with a low operating temperature to improve performance and reliability.