ANHUI CRYSTRO CRYSTAL MATERIALS Co., Ltd.
ANHUI CRYSTRO CRYSTAL MATERIALS CO., LTD. INNOVATOR FOR MAGNETO OPTICAL CRYSTALS
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KDP DKDP Non-Linear Crystal
KDP and DKDP crystals are developed by water-solution method and can grow up to very big size. Therefore, they are good options for low-cost and large-size finished non-linear components, e.g. for frequency-doubling (SHG), frequency-tripling (THG) and frequency- quadrupling (FHG) of Nd:YAG laser at 1064nm.
Characterized by good UV transmission, high damage threshold, and high birefringence, Potassium Dihydrogen Phosphate (KDP) and Potassium Dideuterium Phosphate (DKDP ) are among the most widely-used commercial NLO materials, though their NLO coefficients are relatively low. They are usually used for the doubling, tripling and quadrupling of Nd:YAG laser at room temperature. They are also excellent E-O crystals with high E-O coefficients, widely used as electro-optical modulators, such as Q-switches, Pockels Cells, etc.
CRYSTRO can offer:
| Crystal | DKDP(KD*P) | KDP | ADP | |
| Transmitting Range(nm): | 200~2150 | 180~1550 | 180~1500 | |
| Absorption(%/cm): | 0.5 | 3 | - | |
| Nonlinear Optical Coefficient (pm/V): | 0.40 | 0.43 | 0.52 | |
| Damage Threshold: (GW/cm2 @1064nm) | 5 | 5 | 6 | |
| Refractive Indices: | @1064nm | no=1.4931 | no=1.4942 | no=1.5071 |
| ne=1.4583 | ne=1.4603 | ne=1.4685 | ||
| @532nm | no=1.5074 | no=1.5129 | no=1.5280 | |
| ne=1.4683 | ne=1.4709 | ne=1.4819 | ||
| @355nm | no=1.5257 | no=1.5317 | no=1.5487 | |
| ne=1.4833 | ne=1.4846 | ne=1.4994 | ||
| @266nm | no=1.5539 | no=1.5599 | no=1.5797 | |
| ne=1.5071 | ne=1.5105 | ne=1.5261 | ||
| Sellmeier Equations: (l in µm) | N2 = A + B / (l2 - C) + Dl2/(l2- E) | |||
| A | no | 2.2409 | 2.2576 | 2.3041 |
| ne | 2.1260 | 2.1295 | 2.1643 | |
| B | no | 0.0097 | 0.0101 | 0.0111 |
| ne | 0.0086 | 0.0097 | 0.0097 | |
| C | no | 0.0156 | 0.0142 | 0.0133 |
| ne | 0.0120 | 0.0014 | 0.0129 | |
| D | no | 2.2470 | 1.7623 | 15.1086 |
| ne | 0.7844 | 0.7580 | 5.8057 | |
| E | no | 126.9205 | 57.8984 | 400.0000 |
| ne | 123.4032 | 127.0535 | 400.0000 | |
| Crystal | KD*P(DKDP) | KDP | ADP |
| Crystal Structure: |
| ||
| Density(g/cm3): | 2.355 | 2.332 | 1.799 |
| Color: | Colorless | ||
| Hygroscopic Susceptibility | High | ||
| Thermal Conductivity(10-2W/cm·K): | k11=1.9;k33=2.1 | - | - |
| Thermal Expansion Coefficients(10-5/K): | a11=1.9;a33=4.4 | - | - |
