LiB₃O₅(LBO) is a high-performance nonlinear optical crystal. It offers a broad transmission range (160–2600 nm) and high frequency doubling efficiency—approximately three times that of KDP crystals. LBO is slightly hygroscopic and has a relatively large nonlinear coefficient. It is commonly used in medium- to high-power 1064 nm second and third harmonic generation (SHG, THG) lasers, as well as in optical parametric oscillation (OPO) and optical parametric amplification (OPA) systems for medium- to high-power lasers.
Extremely high damage threshold
Very small walk-off angle
Good mechanical properties and strong thermal shock resistance
| Dimensional Tolerance | (W±0.1mm) ×(H±0.1mm) ×(L+0.5/-0.1mm) (L≥2.5mm) (W±0.1mm) ×(H±0.1mm) ×(L+0.1/-0.1mm) (L<2.5mm) |
| Angle Tolerance | Δθ ≤ 0.25° Δφ ≤ 0.25° |
| Parallelism | < 10" |
| Perpendicularity | ≤ 5' |
| Clear Aperture | ≥90% |
| Surface Quality | 10-5（MIL-0-13830A） |
| Flatness | <λ/8@633nm |
| Wavefront Distortion | <λ/8@633nm |
