DKDP (KD*P) Crystals

Potassium dideuterium phosphate (DKDP or KD*P) crystals are considered to be one of the most common industrial-grade nonlinear opticalNLO) materials. These crystals are distinguished by their deuterium content and exhibit enhanced performance characteristics compared to conventional KDP crystals, especially in high-power laser.

Specifications:

Dimensional tolerance	（W±0.1mm） ×（H±0.1mm）× （L+0.2mm/-0.1mm）or（Diameter±0.1mm）×（L+0.2/-0.1mm）
Wavefront distortion	< λ/8 @ 633nm
Transparent aperture	>90%Central area
Slot	≤0.3mm@45°
Flatness	λ/8 @ 633nm （L≥ 2.5mm） λ/4 @ 633nm （L< 2.5mm）
Chip	≤ 0.1mm
Surface quality	20/10 s/day
Parallelism	< 10”
Vertical	≤ 10′
Angular tolerance	≤ 0.2°
Interior quality	Check that there is no visible scattering path or center 50mW green laser

 

Feature:

• Extended transmission wavelength range: The additional deuterium composition in DKDP crystals broadens the transmission wavelength range, making it suitable for a range of optical applications.
• Elimination of parasitic oscillation: DKDP crystals effectively mitigate the harmful parasitic oscillation caused by Raman scattering, a common in high-power lasers.
• Excellent harmonic generation: These crystals exhibit exceptional performance in second harmonic generation (SHG), third harmonic generation (THG), and fourth harmonic (FHG) of Nd:YAG lasers at room temperature.
• High electro-optic coefficient: DKDP crystals have a high electro-optic coefficient, making ideal for use as electro-optic modulators, such as EO Q-switches and EO Pockels cells.

Application:

• High-power lasers: DKDP crystals are particularly suitable for high-power laser systems because they can eliminate parasitic oscillations and expand the transmission wavelength range.
• Optical parametric oscillator (OPO): These crystals are commonly used for wavelength conversion and tuning in OPOs.
• Optical modulator: DKDP crystals have high electro-optic coefficients, making them ideal for EO modulators such as EO Q-switches and Pockels cells.
• Nonlinear optical elements: DKDP crystals are used to make large-aperture nonlinear optical elements because of their large size and low manufacturing cost.

Supplies high-quality DKDP (KD*P) crystals, which are recognized as one of the most popular industrial-grade nonlinear optical (N) materials. With its unique deuterium composition, these crystals offer several advantages over traditional KDP crystals, especially in high-power laser applications. Our DKDP come in various orientations to meet specific application requirements and are available in large sizes, with the biggest being 100x100x60mm High deuterium composition ratios (>98%) can be achieved, ensuring optimal performance.