Generation of blue cw coherent radiation by sum frequency mixing in KTiOPO4

Baumert, J.-C.; Schellenberg, F. M.; Lenth, W.; Risk, W. P.; Bjorklund, G. C.
December 1987
Applied Physics Letters;12/28/1987, Vol. 51 Issue 26, p2192
Academic Journal
The wavelength, angle, and temperature tolerances of a new room-temperature noncritically phase-matched frequency mixing process involving type II frequency mixing of 1064 and 809 nm radiation in potassium titanyl phosphate (KTiOPO4) are measured. The angular and temperature bandwidths are found to be unusually wide. Device applications for upconversion of diode pumped neodymium:yttrium aluminum garnet laser sources to the blue spectral region are explored.


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