KDP & DKDP Crystals – Electro-optic Crystal – Customized Products
KDP & DKDP(KD*P) crystals, also known as potassium dihydrogen phosphate crystals and potassium deuterium phosphate crystals, with chemical formula KH2PO4 and KD2PO4, are a comprehensive and relatively excellent electro-optical crystal product. KDP and DKDP (KD*P) crystals have the advantages of high damage resistance threshold, superior electro-optical coefficient, good environmental tolerance, compact design, and easy adjustment, and can be used in the manufacture of low-cost and large-size finished nonlinear components for two-fold (SHG) and three-fold (THG) applications. KDP crystals are mainly used as piezoelectric crystals and electro-optical crystals to manufacture sonar, piezoelectric transducers, electro-optical modulators, optical switches, and other products. With the booming laser industry, the excellent nonlinear optical characteristics of KDP crystals have been valued, and they are used as frequency conversion crystals in the field of laser manufacturing, which can be used as the second, third, and fourth frequency multiplier of Nd: YAG (neodymium-doped yttrium aluminum garnet) lasers. In addition, KDP crystals can also be used in laser-induced fusion engineering. Given the excellent characteristics of DKDP, it is mainly used in two applications: 1. DKDP crystals are used as electro-optical crystals for making electro-optical modulators, etc. 2. DKDP crystals are used as non-linear crystals for making large diameter, high energy laser frequency multipliers.
Note:
$100 is a deposit, not the final price of the product. Please contact us for price if needed.
FEATURES
Non-Static Birefringence
No light refraction damage
High resistance to photodamage threshold
High resistance to photodamage threshold
Good tolerance to environment
Compact design, easy adjustment
Crystal Specifications
Dimensional Tolerance | ±0.1mm |
Flatness | <λ/8 @633nm |
Surface Finish | 20/10 |
Parallelism | <20″ |
Perpendicularity | <5′ |
Angle Tolerance | ±0.2° |
Effective Aperture | The central diameter > 90% |
Crystal Properties
Crystal | KDP | KD*P |
Molecular Formula | KH2PO4 | KD2PO4 |
Transparency range | 180-1550nm | 200-2150nm |
NLO Coefficient | d36=0.44pm/V | d36=0.40pm/V |
Refractive Index | no=1.4938,ne=1.4599 | no=1.4948,ne=1.4554 |
Electro-optic Coefficient | r41=8.8pm/V | r41=8.8pm/V |
r63=25pm/V | r63=25pm/V | |
Symmetric | 42m | 42m |
Hygroscopicity | High | High |
Density(g/cm3) | 2.332 | 2.355 |
Longitudinal Half-wave Voltage | Uπ =7.65KV(λ=546nm) | Uπ=2.98KV(λ=546nm) |
Damage Threshold | >5GW/cm2 | >3GW/cm2 |
Extinction Ratio | 30dB | 30dB |