BIBO is a new kind of nonlinear optical crystal with high efficiency. It features in non-deliquescent, stable physical and chemical characteristics and high damage threshold.
High nonlinear optical coefficient
Good optical homogeneity and mechanical strength
Wide transparency range
low loss
Excellent temperature stability
Relatively high damage threshold, suitable for ultrafast laser systems
SPECIFICATIONS | |
Dimensional Tolerance | (W±0.1 mm)×(H±0.1 mm)×(L±0.2 mm) |
Angle Tolerance | Dq＜±0.3°, Df＜±0.3° |
Parallelism | ＜20″ |
Perpendicularity | ＜5′ |
Clear Aperture | ≥Central 95% of the diameter |
Surface Quality | 10/5(MIL-PRF-13830B) |
Flatness | λ/8 @633nm |
Wavefront Distortion | ＜λ/8 @633nm |
CHEMICAL AND STRUCTURAL PROPERTIES | |||
Crystal structure | Orthorhombic | ||
Lattice parameters | a=12.532Å, b=6.71Å, c=10.864Å | ||
Melting point | 1090℃ | ||
Mohs hardness | 4.5 | ||
Density | 3.85g/cm³ | ||
Thermal conductivity | 10W/(m·K) | ||
Thermal expansion coefficient | a:4.4×10-6/K, b:3.5×10-6/K, c:9.3×10-6/K | ||
OPTICAL AND NONLINEAR OPTICAL PROPERTIES | |||
Transmittance | ＞95%(1064nm) | ||
Optical uniformity | ＜0.1% | ||
Temperature stability | ＜10-5/K | ||
Nonlinear optical coefficient | d31=8.8, d32=3.5, d33=13.8 | ||
Thermal coefficient | dn/dT=10-5/K | ||
Refractive index | no=2.155, ne=2.220(1064nm) | ||
Nonlinear Coefficien(pm/v) | 3.5(SHG), 1.8(THG) | ||
Effective SHG coefficient (SHG, THG) | 1.7(SHG), 0.9(THG) | ||
Walk-off Angle (mrad·cm) | 32(type I), 42(type II) | ||
Acceptance Angle (mrad·cm) | 22.5(type I), 29.5(type II) | ||
Phase Matching Range (℃m) | 400~1300(SHG), 900~2600(THG) | ||
Temperature Acceptance (℃) | 55 | ||
Damage Threshold(GW/cm2) | ~2.5(SHG), ~0.6(THG) | ||