Short Description:

Potassium dideuterium phosphate DKDP (KD * P) crystal has low optical loss, high extinction ratio, and excellent electro-optical performance. DKDP Pockels cells are made by using the longitudinal effect of DKDP crystals. The modulation effect is stable and the pulse width is small. It is mainly suitable for low-repetition-frequency, low-power pulsed solid-state lasers (such as cosmetic and medical lasers).

Product Detail

Product Tags

Because DKDP crystals are prone to deliquescent and have poor mechanical properties, DKDP Pockels cell with excellent performance have extremely high requirements for the selection of DKDP material, crystal processing quality and switch assembling technique. The high performance DKDP Pockels cell developed by WISOPTIC have been widely used in high-en cosmetic and medical lasers produced by some distinguished companies in China, Korea, Europe and USA.

WISOPTIC has been granted of several patents for its technology of DKDP Pockels cells such as the integrated Pockels cell (with polarizer and λ/4 wave plate inside) which can be easily assembled into Nd:YAG laser system and helps to make laser head more compacted and cheaper.

Contact us for the best solution for your application of DKDP Pockels cell.

WISOPTIC Advantages - DKDP Pockels Cell

• Highly deuterated (>98.0%) DKDP crystal 

• Compact design

• Very easy to mount and adjust

• Premium UV-grade fused silica windows

• High transmission

• High extinction ratio

• High switching-off capacity

• Broad adaptation angle

• High laser damage threshold

• Good sealing, high resistance to environment change

• Robust, long service life (two-years quality guarantee)

WISOPTIC Standard Product - DKDP Pockels Cell

Model Code

Clear Aperture

Overall Dimension (mm)


Φ8 mm



Φ8 mm



Φ10 mm



Φ10 mm



Φ11 mm



Φ13 mm


*P Series: with additional design for parallelism.

WISOPTIC Technical Data - DKDP Pockels Cell

Clear Aperture

8 mm

10 mm

12 mm

13 mm

Single Pass Insertion Loss

< 2% @1064 nm

Intrinsic Contrast Ratio

> 5000:1 @1064 nm

Voltage Contrast Ratio

> 2000:1 @1064 nm

Wavefront Distortion

< l/6@ 633 nm

DC Capacitance

< 4.5 pF

< 5.0 pF

< 5.5 pF

< 6.0 pF

DC Quarter Wave Voltage

3200 +/- 200 V @1064 nm

Single Pass Transmission

> 98.5%

Laser Damage Thereshold

1GW/cm2 [AR coating@1064nm,10ns,10Hz]

  • Previous:
  • Next:

  • Related Products