KD*P Pockels Cell

Featured Product from CRYSTECH, Inc.

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KD*P (Potassium Dideuterium Phosphate) is the most widely used material for electro-optical applications due to its excellent E-O properties. An electro-optic material such as KD*P can alter the polarization state of light passing through it, when an applied voltage induces birefringence change in the crystal.


  • Industrial laser system
  • Medical Laser system
  • Aesthetic Laser system
  • Military Laser system


  • High Extinction Ratio
  • Low Insertion Loss
  • High damage threshold
  • Wide working temperature range
  • Low capacitance
  • Low current Leakage
Voltage Extinction Ratio >2000:1(CP) >1500:1(PP) Collimation <0.5°
Insertion Loss <2% Wavefront distortion λ/6@633nm
Quarter-wave voltage ~3400V Scratch/Dig 20/10
Capacitance 6-10pF Clear Aperture ≥90%
Coatings AR@1064nm(R<0.2%), or customised upon request
Damage threshold 1GW/cm² 10ns 10Hz at 1064nm