BiB3O6 (BIBO) is a newly developed nonlinear optical crystal. It possesses large effective nonlinear coefficient, high damage threshold and inertness with respect to moisture. Its nonlinear coefficient is 3.5 - 4 times higher than that of LBO, 1.5 -2 times higher than that of BBO. It is a promising doubling crystal to produce blue laser. The top-seeded solution growth (TSSG) technique is used at CASTECH for the growth of BIBO single crystals.
? Strict quality control;
? Large crystal size up to 10x10x15mm3 ;
? AR-coating, mounts and repolishing services;
? Fast delivery.
Table 1. Chemical and Structural Properties
|Crystal Structure||Monoclinic，Point group 2|
|Lattice Parameter||a=7.116?, b=4.993? , c=6.508? , β=105.62°, Z=2|
|Thermal Expansion Coefficient||αa=4.8 x 10-5/K , αb= 4.4 x 10-6/K, αc=-2.69 x 10-5/K|
Table 2. Optical and Nonlinear Optical Properties
|Transparency Range||286- 2500 nm|
|Absorption Coefficient||<0.1%/cm at 1064nm|
|SHG of 1064/532nm|
Phase matching angle: 168.9°from Z axis in YZ plan
Deff : 3.0 +/- 0.1 pm/V
Angular acceptance: 2.32 mrad·cm
Walk-off angle : 25.6 mradTemperature acceptance: 2.17 ℃·cm
|Physical Axis||X∥b, (Z,a)=31.6°,(Y,c)=47.2°|
|Sellmeier coefficients||ni2(λ) = A + B/(λ2-C) - Dλ2 （λ in μm）|
CASTECH's Warranty on BIBO Specifications ：
? Dimension tolerance: (W±0.1mm)x(H±0.1mm)x(L+0.5/-0.1mm) (L≥2.5mm)
? 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
? Scratch/Dig code: better than 10/ 5 to MIL-PRF-13830B
? Parallelism: better than 20 arc seconds
? Perpendicularity: ≤5 arc minutes
? Angle tolerance: △θ≤0.25°, △φ≤0.25°
? Damage threshold[GW/cm2]: >0.3 for 1064nm, TEM00, 10ns, 10HZ
? Quality Warranty Period: one year under proper use.
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