Key Features:
- Low optical loss
- High extinction ratio
- Excellent electro-optic performance
- High transparency (T>98%)
- High damage threshold (>750MW/cm²)
- High extinction ratio (>1000:1)
Description:
Potassium Dideuterium Phosphate (DKDP or KD*P) crystals are well-known for their low optical loss, high extinction ratio, and excellent electro-optic properties. Widely used in a range of applications, these crystals are typically manufactured with a deuterium content of over 98%. DKDP crystals are commonly used for Q-switching in lasers due to their efficient electro-optic modulation capabilities. They are ideal for pulsed laser systems and are frequently applied in low to medium repetition rate laser aesthetics, laser medicine, and other related fields.
At Shape Optics, we offer advanced crystal fabrication and coating technology to provide electro-optic Q-switches for various laser wavelengths. Our DKDP Q-switches feature high transmission rates, high damage thresholds, and high extinction ratios, ensuring reliable performance in demanding applications.
Physical Properties:
- Chemical Formula: KD₂PO₄
- Crystal Structure: Tetragonal
- Melting Point: 213°C
- Density: 2.332 g/cm³
- Hardness: Knoop 428 with a 100g indenter
Optical Properties:
- Transparency Range: 200-2100nm
- Refractive Index: n_o=1.530, n_e=1.470 (at 1064nm)
- Birefringence: Δn ≈ 0.060 (at 546nm)
Standard Specifications:
- Nonlinear Coefficient: d₃₆=0.4 pm/V
- Electro-optic Coefficients: γ₆₃=25 pm/V, γ₄₁=8.8 pm/V
- Half-wave Voltage: V=2.98kV (at 546nm), V=6.4kV (at 1064nm)
- Absorption Coefficient: 0.006 cm⁻¹
- Damage Threshold: >750MW/cm² (10ns, 10Hz at 1064nm)
Other Properties:
- Electrical Resistivity: 10¹¹-10¹² Ω·cm
Applications:
- Electro-optic Q-switching in Nd, Nd, and Tilasers
- Pulse picking and cavity dumping
- Laser medicine
- Laser aesthetics
- Optical parametric oscillators (OPO)
Processing and Handling:
- DKDP crystals require careful handling to avoid stress and temperature fluctuations.
- Recommended operating temperature range: -50°C to +70°C.
- Ensure both crystal faces are maintained at a consistent temperature for optimal performance.
Why Choose Shape Optics:
- Advanced crystal growth and fabrication techniques
- High-quality coating capabilities
- Customized solutions to meet specific requirements
- Reliable and consistent product performance
Shape Optics Strength and Capabilities:
Shape Optics leverages cutting-edge technology and extensive expertise in crystal growth and fabrication to deliver high-performance DKDP crystals. Our commitment to quality and innovation ensures that our products meet the stringent demands of various advanced optical applications. Partner with us for reliable, high-quality optical components tailored to your needs.
