Due to its unique electro-optic, piezoelectric, and pyroelectric properties, lithium tantalate (LiTaO3) is used in various fields including telecommunications, medical imaging, and sensors. Optical grade lithium tantalate wafers are specialized forms of lithium tantalate, designed specifically for electro-optical applications. These wafers are known for their high purity and superior surface quality, which are critical for minimizing optical losses and enhancing device performance. They are characterized by their exceptional transmittance in the visible and infrared regions, and exhibit high optical homogeneity and low levels of birefringence, which are essential for many high-precision electro-optical applications such as modulators, Q-switches, and waveguides.
Alfa Chemistry offers a comprehensive range of optical grade lithium tantalate wafers. We offer wafers in various sizes and orientations, tailored to meet the diverse needs of our clients. We ensure stringent quality control processes, including rigorous polishing and cleaning procedures, as well as advanced measurement techniques to verify the optical and physical properties of the wafers. These processes ensure that the wafers meet the demanding specifications required for high-performance devices.
Optical Grade LiTaO3 wafers | ||
Catalog | ACSEM-TFW005 | |
Curie Temp | 603±2 ℃ | |
Cutting Angle | X, Y, Z, etc. | |
Diameter/Size | 2" /3" /4" | |
Tolerance (±) | <0.20 mm | |
Thickness | 0.1-0.5 mm or more | |
Primary Flat | 16 mm /22 mm /32 mm | |
Orientation Flat | All available | |
Surface Type | Single side polished /Double sides polished | |
Polished Side Ra | <0.5 nm | |
Back Side Criteria | Generally 0.2-0.5µm or as customized | |
Surface Quality S/D | 20/10 | |
Edge Criteria | R=0.2mm or Bullnose | |
Doped | Zn, MgO, etc. | |
Wafer Surface Criteria | Contamination | None |
Particles Φ>0.3 μm | ≤30 | |
Scratch, Chipping | None | |
Defect | No edge cracks, scratches, saw marks, stains |
Our optical grade lithium tantalate wafers are utilized in a diverse array of advanced applications:
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