Nonlinear single crystal KTA (Potassium Titanyl Arsenate)
Potassium Titanyl Arsenate (KTiOAsO4 or KTA) is an excellent optical non-linear
crystal developed recently for non-linear optical and electrooptical device
applications.
These non-linear optical and electrooptical coefficients are higher in comparison
with KTP and they have the added benefit of significantly reduced absorption
in the 2.0 - 5.0 µm region. The large non-linear coefficients are combined
with broad angular and temperature bandwidths. Additional advantages of the
Arsenates are low dielectric constants, low loss tangent and ionic conductivities
orders of magnitude less than KTP. Single crystals of these Arsenates are chemically
and thermally stable, non-hygroscopic and are highly resistant to high intensity
laser radiation.
Crystals of KTA are important for second harmonic generation (SHG), sum and
difference frequency generation (SFG)/(DFG), optical parametric oscillation
(OPO), electrooptical Q-switching and modulation and as substrates for optical
waveguides. OPO devices based on these crystals are reliable, solid state sources
of tunable laser radiation exhibiting energy conversion efficiencies above 50%.
KTA has a very high damage threshold. No optical damage was observed at the
levels of 10 - 20 GW/cm2 with the picosecond dye laser. This crystal is grown
using high temperature flux technique.
Nonlinear single crystal KTA (Potassium Titanyl Arsenate) is applicable
in areas of research, development, education & production: photonics, optic,
laser technology, dosimetry, telecommunications, electronic.
More information about Nonlinear single crystal KTA (Potassium Titanyl Arsenate)
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