Lithium Niobate vs Lithium Tantalate Wafers: Which Fits RF Filters and Photonic Devices?
Lithium niobate (LiNbO₃) is widely used in electro-optic modulators and high-coupling acoustic devices, while lithium tantalate (LiTaO₃) is established in RF filters and increasingly used in integrated photonics. The better substrate depends on crystal cut, electromechanical coupling, temperature stability, optical performance, and device architecture.





