Q-Switch

DKDP Series Pockels cell

DKDP Series Pockels cell

KDP & DKDP Crystals

Potassium Dihydrogen Phosphate (KDP) and Potassium Dideuterium Phosphate (DKDP) are among the most widely-used commercial NLO materials, characterized by good UV transmission, high damage threshold, and high birefringence, though their NLO coefficients are relatively low. They are usually used for doubling, tripling or quadrupling of a Nd:YAG laser (at constant temperature). With excellent optical homogeneity and high E-O coefficients, KDP and DKDP crystals are also widely used in E-O modulators, Q-switches, etc.
  Foctek provides bulk supply of high quality KDP and DKDP crystals in diverse sizes for the above applications, as well as custom-made services of crystal select, design and processing.

Application of DKDP Series Pockels Cell 

With excellent physical and optical property, DKDP series Pockels cells are widely used in laser systems with large caliber, high power and narrow pulse width. They are among the optimal E-O Q-switches used in pulse laser systems, including: OEM laser systems; Medical/cosmetic lasers; Versatile R&D laser platforms; Military & aerospace laser systems.

Specifications for DKDP Series Pockels Cell:

Extinction Ratio
>5000:1
Wavefront Distortion
< λ/8 @633nm
Capacitance
according to different model
Single Pass Optical Transmission
>98%
Damage Threshold
>750MW/cm2 @1064nm, 10ns 10Hz
Spectral Range
240nm~1400nm
Typical Aperture Diameter
8mm~30mm
 

Features of DKDP Series Pockels Cell:

 
High deuteration (>98.0%) DKDP.
No static birefringence.
No photorefractive damage.
Resistant to environmental temperature.
Excellent electric-optical properties.
Sealant and adhesive free.
High extinction ratio
High damage threshold
Low λ/4 Voltage
Single Pass Optical Transmission
Compact design
Easy adjustment
 

Typical Performance @1064nm    

   
Type
EOD-8Ga
EOD-8Gpa
EOD-10Ga
EOD-10Gpa
EOD-11Gpa
EOD-13Ga
Dimension
Ф19*24mm
Ф20*29mm
Ф25.4*32mm
Ф25.4*39mm
Ф28*33mm
Ф25.3*42.5
Clear Aperture
Ф8mm
Ф8mm
Ф10mm
Ф10mm
Ф11mm
Ф13mm
Single pass optical transmission
>98%
>98%
>98%
>98%
>98%
>98%
Wavefront Distortion
<λ/8
<λ/8
<λ/8
<λ/8
<λ/8
<λ/8
Extinction
Ratio@1064nm
>5000:1
>5000:1
>5000:1
>5000:1
>5000:1
>5000:1
λ/4 Voltage
3200V+/-200V
3200V+/-200V
3200V+/-200V
3200V+/-200V
3200V+/-200V
3200V+/-200V
Capacitance
<4.5pF
<4.5pF
<5pF
<5pF
<6.5pF
<8pF
DamageThreshold
750MW/cm²@1064nm.10ns,10Hz
 

Seal Housing Schematic Diagram

         
 
 
                                                      
         
 

Application Notices on DKDP Series Q-switch

Core exposure or loose contact is forbidden.
Recommend to be operated at constant temperature.
Please avoid any intense impact or vibration.
Unauthorized disassembly is forbidden.
 

  

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