Modules or Types:
Various forms of crystals are available upon your request:
Specifications:
| Crystal Materials | DKDP crystals (deuteration level >98%) | Typical Diameter | 6mm; 8mm; 10mm; 12mm; 15mm |
| Diameter Tolerance | +/-0.1mm | Length Tolerance | +/-0.2mm |
| Surface Quality | 20/10 S/D | Parallelism | <20 arc seconds |
| Flatness | < Lambda/10 @633nm | Chamfer | 0.1-0.3mmx45° |
| Chips | <0.15mm | Fine ground | <0.15mm |
| Orientation Tolerance | < 10 arc minutes | Wavefront Distortion | <Lambda/8@633nm |
| Extinction Ratio | >2000:1 | Coating | AR/AR@1064nm or customized |
| Damaging Threshold | >800mW/cm^2@1064nm 10nS 10Hz pulse | Electrode on Side Surface | Chrome gold electrode (Cr+Au) |
| Quarter Wave Voltage | ~3.4KV | ||
Physical and Optical Properties:
| Chemical Formula | KD2P | Curie Temperature | 222K |
| Symmetry | 42m | Density | 2.355g/cm3 |
| Absorption | 0.005/cm | Extinction Ratio | 1:10000 |
| Deuterium Ratio | 98.05%--99.05% | Transmission Band | 200-1600nm |
| Non-linear Coefficient | d36=0.40pm/v | Longitudinal Half-wave Voltage | 2.98KV(I=546nm) |
| Electric Resistance | >2x109Ω/cm | Electric-optical Coefficient | r41=8.8pm/v,r63=25pm/v |
KD*P or DKDP crystals are widely used in Q-switching applications at wavelength range from 0.25µm to approximately 1.1 µm, If the deuterium content is higher the absorption edge of the material is shifted further into the infrared. KD*P crystal with a deuterium content >98% can be used up to 1.3μm. KD*P can be grown with high optical uniformity and is therefore recommended for requirements of large apertures.
Hangzhou Shalom EO offers the DKDP crystals of high deuteration (>98%) for KD*P pockels cells applications, the customized blanks, polished crystals, and the AR coating and Cr-Au electrode crystal components are available upon your request.
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