Products > KDP & DKDP Crystal > KDP/DKDP Crystal

KDP/DKDP Crystal

Potassium Dihydrogen Phosphate (KDP) and Potassium Dideuterium Phosphate (DKDP) are widely used for electro-optical modulation and frequency conversion.
INNOWIT’s KDP and DKDP have high nonlinear coefficient and high optical damage threshold, and can be used electro-optical modulator, Q switches and shutters for high speed photography.

Applications and Advantages:

  • Electro-optical modulator, Q-switches;

  • Second, third and fourth harmonic generation, frequency double for dye laser;

  • Shutter for high speed photography;

  • High power laser frequency conversion materials;

 INNOWIT 's specifications of KDP & DKDP : 

Dimension tolerance:



λ/8 @633nm

Surface quality: Scratch/Dig



better than 20 arc sec.


better than 5 arc min

Angle tolerance:

<± 0.2°

Clear aperture:

>90% central area

Transmitting wavefront distortion:

less than λ/8 @ 633nm


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