KTA is an excellent nonlinear optical crystal for OPO application, OPO devices based on KTA are reliable, solid state sources of tunable laser radiation exhibiting energy conversion efficiencies above 50%, in addition, KTA has a very high damage threshold and lower absorption in the 3-4 µm spectrum range than KTP.

Large nonlinear optical and electro-optical coefficient
Wide angular bandwidth and small walk-off angle
Temperature and spectral bandwidth
Low dielectric constant, loss tangent and ionic conductivities
High damage threshold
Highly resistant to high intensity laser radiation

An excellent NLO crystal developed mainly for Optical Parametric Oscillation
Freqency Doubling (SHG@1083nm~3789nm)
Sum and Difference Frequency Generation
Electro-Optical Q-Switch and modulation for optical waveguides

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