We have constructed a blue laser source consisting of a single-frequency tapered diode laser with external cavity feedback that is frequency doubled by a quasi-phase matched KTP (PPKTP) in a bowtie ring cavity and extract more than 360 mW of power at 405 nm. The conversion efficiency from fundamental laser power to second harmonic power is 35 %, while it is 64 % from coupled fundamental power to extracted blue light. Thermal effects and gray tracking set an upper limit on the amount of generated blue light.
|Conference||Photonics West 2007|
|City||San Jose, CA|
|Period||20/01/2007 → 25/01/2007|
|Series||Proceedings of SPIE, the International Society for Optical Engineering|
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