Nd:YAG-Diode Laser Summation In KTP For A High Modulation Rate Blue Laser

Intracavity upconversion of an 808-nm laser diode to 459 nm using KTP in a diode-pumped Nd:YAG laser produced tens of microwatts CW and modulated blue output. Milliwatt CW outputs were achieved with a dye laser. Modulation will be discussed as will the possibility of similar locally tunable systems throughout the visible.