KTA or Potassium Titanyle Arsenate is perfect non-linear optical crystal mainly used for Optical Parametric Oscillation (OPO) systems. OPO which includes KTA are very reliableexposing energy conversion efficiency above 50%. Compared to KTP crystals, KTA crystals have significantly lower absorption in the 3-4 µm range.


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  • Optola offers wide range of available KTA crystals.
  • Custom designs by request.


Dimensional Tolerance +/-0.1mm
Wavefront Distortion < λ / 8 @633nm
Chamfer <0.15mm x 45°
Perpendicularity < 5 arc min
Parallelism <15 arc sec
Flatness < λ / 10 @ 633nm
Surface quality 10/5
AR coating From visible to 3.3um
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