1998•Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIERequires access
Generation of blue light by frequency doubling in periodically poled bulk and waveguide KTP
Yu Wang, Valentin T. Petrov, Yujie J. Ding, Jacob B. Khurgin, W. P. Risk
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Abstract
We have investigated second-harmonic generation in short- period periodically-poled bulk and waveguide potassium titanyl phosphate crystals to generate blue light using subpicosecond laser pulses. For the bulk, the maximum conversion efficiency is approximately equals 5.5%, which is about two orders of magnitude larger than that achieved previously. For the waveguide, the maximum conversion efficiency is approximately equals 32%, which is about a factor of 4 higher than that obtained before. These measured values are in good agreement with our theoretical results. We have observed saturation of conversion efficiency, which sets a limit to the maximum conversion efficiency that can be obtained.