Table 1.
Data adapted from APL Photonics 5, 020903 (2020); Optica 6(3), 380-384 (2019); and Optics Express 14 (11), 4826-4834 (2006).
| Loss vs. wavelength for various chip platforms | ||||
|---|---|---|---|---|
| Loss (dB/cm) | 300–400 nm | 400–500 nm | 500–600 nm | 600–700 nm |
| Aluminum nitride (AlN) | 40–50 | 40–50 | 30–40 | 20–30 |
| Alumina (Al2O3) | ~3 | 2 | 1 | <1 |
| Tantalum pentoxide (Ta2O3) | N/A | ~4 | ~2 | <1 |
| Silicon-nitride (Si3N4) | N/A | 5–20 | <1 | <1 |
| Lithium niobate (LiNbO3) | N/A | N/A | N/A | ~0.06 |
| Femto-second laser-written waveguides in glass (SiO2) | N/A | N/A | N/A | ~0.2 |