| Clear Aperture | central 90% of the diameter | Flatness | less than λ/8 @ 633nm |
| Transmitting Wavefront Distortion | less than λ/8 @ 633nm | Chamfer | ≤0.2mmx45° |
| Chip | ≤0.1mm | Surface Quality | 10/ 5 S/D (MIL-PRF-13830B) |
| Parallelism | better than 20 arc seconds | Perpendicularity | ≤5 arc minutes |
| Angle Tolerance | Δθ≤0.25°, ΔΦ≤0.25° | Quality Warranty Period | one year under proper use |
Chemical and Structure Properties:
| Crystal Structure | Monoclinic, Point group 2 | Lattice Parameter | a=7.116Å,b=4.993Å, c=6.508Å, β=105.62° ,Z=2 |
| Melting Point | 726°C | Mohs Hardness | 5-5.5 |
| Density | 5.033 g/cm3 | Thermal Expansion Coefficient | αa=4.8x10-5 /K, αb=4.4x10-6 /K, αc=-2.69x10-5 /K |
Optical and Nonlinear Optical Properties:
| Transparency Range | 286-2500nm | Absorption Coefficient | <0.1%/cm at 1064nm |
| Physical Axis | X//b,(Z,a)=31.6°,(Y,c)=47.2° | SHG of 1064/532 | Phase matching angle:168.9° from z axis in YZ plane Deff:3.0+/-0.1 pm/V Angular acceptance:2.32 arad-cm Walk-off angle :25.6 mrad temperature acceptance:2.17°C-cm |
| Sellmeier Coefficients | ni2(λ)=A+B / (λ2-C)-Dλ2 (λ in um) | |||
| A | B | C | D | |
| n1 | 3.6545(4) | 0.0511(2) | 0.0371(3) | 0.0226(1) |
| n2 | 3.0740(3) | 0.0323(1) | 0.0316(3) | 0.01337(6) |
| n3 | 3.1685(3) | 0.0373(1) | 0.0346(3) | 0.01750(8) |
BIBO( BiB3O6) Crystal is a newly developed Nonlinear Optical Crystal. It features a large effective nonlinear coefficient, a high damage threshold, and inertness to moisture. Its nonlinear coefficient is 3.5-4 times higher than that of LBO, and 1.5-2 times higher than that of BBO. It is a promising SHG crystal to generate blue laser output. The top-seeded solution growth (TSSG) technique is used for the growth of BIBO single crystals in North Optics.
Shanghai North Optics offers BIBO( BiB3O6) Crystal with a maximum dimension of 15x15x15mm with AR coatings and mounts. Re-polishing services could also be arranged.
Applications of BIBO Crystals:
1. SHG and THG for medium and high power Nd: lasers at 1064nm
2. SHG and THG of high power Nd: lasers at 1342nm & 1319nm
3. SHG for the Nd: Lasers at 914nm & 946nm
4. Optical Parametric Amplifiers (OPA) and Oscillators (OPO) application
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