Rubidium Titanyl Phosphate (RTP) Crystal Properties – Shape Optics

Key Features:

  • High transparency range (350-4500 nm)
  • High damage threshold (1.8 times higher than KTP)
  • High electro-optic coefficient
  • Low piezoelectric ringing
RbTiOPO4- RTP

Description:

RTP (RbTiOPO₄) is a non-linear optical crystal with properties similar to KTP. It features a high damage threshold, making it suitable for high-power laser applications. With a high dielectric constant (ε=11) and resistivity (approx. 10¹¹-10¹²Ω·cm), RTP crystals are ideal for electro-optic applications such as Q-switches, Pockels cells, and pulse pickers.

RTP is a biaxial crystal, often used in paired configurations to eliminate beam walk-off and reduce thermal effects. This dual-crystal setup ensures stable operation in temperature ranges from -50°C to +70°C, provided both crystals are maintained at the same temperature. This configuration further reduces drive voltage requirements, enhancing suitability for military and medical laser systems.

Physical Properties:

  • Crystal Structure: Orthorhombic
  • Density: 6.74 g/cm³
  • Hardness: Mohs 5
  • Melting Point: ~1000°C

Optical Properties:

  • Transparency Range: 350-4500 nm
  • Refractive Indices:
    • nₓ = 1.738 @ 1064 nm
    • nᵧ = 1.742 @ 1064 nm
    • n𝓏 = 1.747 @ 1064 nm
  • Electro-Optic Coefficients:
    • r₁₃ = 8.6 pm/V
    • r₃₃ = 15.5 pm/V

Standard Specifications:

PropertyValue
Transmission @ 1064 nm> 98.5%
Aperture Diameter3-15 mm (Effective Diameter: 85%)
Half-Wave Voltage @ 1064 nm1000V (3x3x10+10)
Extinction Ratio> 23 dB
Acceptance Angle> 1°
Damage Threshold600 MW/cm² (10 ns, 10 Hz @ 1064 nm)
Operational Temperature-50°C to +70°C
Standard DimensionsDia20/25.4 x 35 mm (Clear Aperture: 3×3, 4×4, 5×5)

Applications:

  • Electro-optic modulators (Q-switches)
  • Pockels cells
  • Pulse pickers
  • Laser ranging and communication
  • Medical laser systems

Processing and Handling:

  • RTP crystals should be handled with care to avoid contamination and physical damage.
  • Store in a clean, dry environment.
  • Avoid exposure to extreme temperatures and mechanical shocks.

Why Choose Shape Optics:

  • Shape Optics provides high-quality RTP crystals with precise cutting and coating options.
  • Our RTP crystals ensure stable performance and high damage thresholds for demanding applications.

Shape Optics Strength and Capabilities:

  • Advanced manufacturing techniques and rigorous quality control.
  • Customizable crystal dimensions and coating specifications to meet your needs.
  • Expert technical support and customer service.
  • Reliable global supply chain and export licensing.

For more detailed information or specific requirements, please contact Shape Optics.