LiNbO₃ (Lithium Niobate) crystal features low cost, excellent mechanical and physical properties, as well as outstanding optical uniformity. Therefore, LiNbO₃ wedge plates are widely used in optical fiber isolators and circulators.
| Project | Performance Parameters |
| Material | LiNbO₃ Crystal |
| Specifications | 0.67×0.67 / 1×1 / 1.25×1.25 / 1.5×1.5 / 2×2 |
| Dimension Tolerance | ±0.02 mm |
| Surface Quality | 10-5 (after coating) |
| Flatness | λ/10 @632.8 nm |
| Angular Deviation | 3′ |
| Directional Accuracy | 6′ |
| Coating | 1064 nm, 1310 nm, 1550 nm, 1260–1650 nm |