Optical Grade Lithium Tantalate Wafers
Curie Temp: 603±2℃
Cutting Angle: X/Y/Z/X112Y/Y36/Y42/Y48/etc
Diameter/size: 3”/4”/6" LT wafer
Tol(±): <0.20 mm
Thickness: 0.18 ~ 0.5mm or more
Primary Flat: 22mm /32mm /42.5mm /57.5mm
Lithium tantalate (LiTaO3) crystal exhibits remarkable optical properties, making it a versatile material in the field of optics. With excellent optical transparency across a broad spectral range from ultraviolet to infrared, lithium tantalate is well-suited for various optical applications.
Its nonlinear optical characteristics, including high second and third-order nonlinear coefficients, render it ideal for nonlinear optical devices such as frequency doublers, modulators, and phase modulators.
Additionally, its strong birefringence makes lithium tantalate ideal for optical modulators and waveguide devices, allowing precise polarization control and modulation. As a substrate, it facilitates guided-wave propagation and light modulation in photonics, telecommunications, and integrated optics.
Moreover, lithium tantalate’s low optical absorption in the visible and infrared regions makes it suitable for optical filters, lasers, and sensors.
Overall, lithium tantalate crystal’s optical properties contribute to its widespread applications in laser technology, optical modulators, sensors, and waveguide devices, playing a pivotal role in optical communication, photonics, and sensing fields.
Material | LiTaO3 wafers(White or Black) | |
Curie Temp | 603±2℃ | |
Cutting Angle | X/Y/Z etc | |
Diameter/size | 2”/3”/4” LT wafer | |
Tol(±) | <0.20 mm | |
Thickness | 0.18 ~ 0.5mm or more | |
Primary Flat | 16mm/22mm /32mm | |
TTV | <3µm | |
Warp | <40µm | |
Surface Type | Single Side Polished /Double Sides Polished | |
Polished side Ra | <0.5nm | |
Back Side Criteria | General is 0.2-0.5µm or as customized | |
Edge Criteria | R=0.2mm or Bullnose | |
Optical doped | Zn/MgO etc | |
Wafer Surface Criteria | Contamination, | None |
Particles ¢>0.3 µ m | <= 30 | |
Scratch , Chipping | None | |
Defect | No edge cracks, scratches, saw marks, stains | |
Packaging | Qty/Wafer box | 25pcs per box |