Generation of 0.8 W of blue light by frequency doubling the output of a tapered InGaAs diode amplifier in critically phase-matched LBO

Summary form only given. Compact blue laser sources are of interest for many applications. Although the operation of blue diode lasers has been demonstrated, the development of reliable high-power devices, as required for most applications, remains a challenge. An alternative method for diode-laser-based blue-light generation is the second-harmonic generation (SHG) of near-infrared diode-laser light. In this paper, we report on the generation of 830 mW of blue 465-nm radiation by frequency doubling the diffraction-limited output of a tapered InGaAs diode amplifier in critically phase-matched LiB/sub 3/O/sub 5/ (LBO).