SAW Grade 4 Inch Fe Doped Lithium Tantalate Crystal
Fe+ doped LiTaO3 Single Crystal Wafers
Introduction:
Lithium tantalate (LiTaO3, LT) optical grade crystal is multifunctional crystal material. LT crystal integrates multiple effects such as piezoelectric, electro-optics, Acousto-Optical, and nonlinear optics. It is an excellent material for sound transmission medium and high-frequency transducers. It can be widely used in electro-optical devices, laser frequency doublers, Acousto-Optical devices, etc.
The 36° and 42 ° cuts of Lithium Tantalate have shown widespread adoption for the telecommunications mobile phone handset market at frequencies from 800 to 2100 MHz.
Features:
- high optical damage threshold
- Stable chemical and physical properties
-
Large electro-optic coefficient
| Material | LiTaO3 wafers(White or Black &Fe doped) | |
| 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 | |
| LTV (5mmx5mm) | <1µm | |
| TTV | <3µm | |
| Bow | -30<bow<30 | |
| Warp | <40µm | |
| PLTV(<0.5um) | ≥95%(5mm*5mm) | |
| Orientation Flat | All available | |
| Surface Type | Single Side Polished /Double Sides Polished | |
| Polished |
Ra<0.5nm |
|
| Back Side Criteria | General is 0.2-0.5µm or as customized | |
| Edge Criteria | R=0.2mm or Bullnose | |
| Fe doped |
Fe doped for saw grade LN< wafers |
|
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