Optical Grade Lithium Tantalate Wafers

Specifications
Material: LiTaO3 wafers(White or Black) 
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
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