Lithium Niobate (LiNbO3) features,
High electro-mechanical coupling coefficients,
A wide transparency range,
Excellent chemical and mechanical stability.
Therefore it has been widely used for surface acoustic wave (SAW) devices, accoustic transducers, and integrated optic devices. Newlight Photonics offers LN wafers wth the following parameters,
Diameters: Φ1", Φ2", Φ3"
Thickness: 0.25 ~ 1.0 mm
Orientation: X, Y, Z, 127.86° Y, 64° Y, 135° Y
| Model | Name | orientation | attr_size | Price | Availability | Action |
| LNW3025-X | LiNbO3 wafer, Dia 3" x 0.25mm, x-cut, both size polished | X-cut | Dia 3" x 0.25mm | Ask | Out Of Stock | |
| LNW3050-X | LiNbO3 wafer, Dia 3" x 0.50mm, x-cut, both size polished | X-cut | Dia 3" x 0.50mm | Ask | Out Of Stock | |
| LNW3025-128Y | LiNbO3 wafer, Dia 3" x 0.25mm, 128-Y cut, both size polished | 128-Y | Dia 3" x 0.25mm | Ask | Out Of Stock | |
| LNW3050-128Y | LiNbO3 wafer, Dia 3" x 0.50mm, 128-Y cut, both size polished | 128-Y | Dia 3" x 0.50mm | Ask | Out Of Stock |
Crystal symmetry: 3m
Density: 4.628 g/cm3
Optical spectral range: 0.4 - 5 μm
Elastic constants cij (1011 dyn/cm2 or 1010 Pa):
| 0.03 | 0.079 | 0.104 | -0.071 | 0 | 0 |
| 0.079 | 0.03 | 0.104 | 0.071 | 0 | 0 |
| 0.172 | 0.172 | 0.078 | 0 | 0 | 0 |
| -0.152 | 0.152 | 0 | 0.22 | 0 | 0 |
| 0 | 0 | 0 | 0 | 0.22 | -0.152 |
| 0 | 0 | 0 | 0 | -0.071 | -0.025 |
Photoelastic constants pij:
| 0.03 | 0.079 | 0.104 | -0.071 | 0 | 0 |
| 0.079 | 0.03 | 0.104 | 0.071 | 0 | 0 |
| 0.172 | 0.172 | 0.078 | 0 | 0 | 0 |
| -0.152 | 0.152 | 0 | 0.22 | 0 | 0 |
| 0 | 0 | 0 | 0 | 0.22 | -0.152 |
| 0 | 0 | 0 | 0 | -0.071 | -0.025 |
Sound velocity:
| Direction | Polarization | v (105 cm/s) |
| [100] | [100], L | 6.549 |
| [010] | [010], L | 6.838 |
| [010] | S | 4.4667 |
| [001] | [001], L | 7.331 |
| [001] | [100], S | 3.5885 |
| [010] | [100], S | 3.838 |
| [001] | [001], L | 7.271 |
| [100] | [001], S | 4.801 |
| [100] | [010], S | 4.0593 |
| [010] | [010], QL | 6.882 |
| [010] | [100], S | 3.962 |
| [010] | [001], QS | 4.494 |
| [001] | [001] L | 7.333 |
| [001] | [001] L | 7.22 |
| [010] | [010] L | 6.58 |
| [100] | [100] L | 6.57 |
| [001] | [010] S | 3.57 |
| [001] | [100] S | 3.57 |
| [001] | [001] L | 7.331 |
Some more physical properties of LN crystal can be found at
http://www.newlightphotonics.com/E-O-Crystals/LN-for-EO
under the "properties" tab.
Standard LiNbO3 SAW Wafers
| Diameter: Φ40.0 mm, Φ50.8 mm, Φ76.2 mm , Φ101.6 mm |
| Thickness: 0.25 ~ 1.0 mm |
| Orientation: X, Y, Z, 127.86° Y, 64° Y, 135° Y |
| Front polish: 0.016 ~0.001 μm |
| Back lapping: 0.3 ~10 μm |
| Flatness: < 15 μm |
| Bow: < 20 μm for Φ40 ~ 65 mm, < 40 μm for Φ65 ~101.6 mm |