High bandwidth second-harmonic generation in partially deuterated KDP

摘要

We have experimentally determined the spectrally noncritical phasematching behavior of Type I frequency doubling in KDP and its dependence on deuteration level in partially deuterated KDP. The first order wavelength sensitivity parameter(partial derivative)(Delta)k/(partial derivative)(gamma) for Type I doubling of 1.053 (mu)m light vanishes for a KD*P crystal with a deuteration level between 10 and 14%. Very high bandwidth frequency doubling of Nd:glass lasers is possible with such a crystal.