BIBO-Nonlinear crystal-Beijing Honour Optics Co., Ltd-Honour Optics Co., Ltd

BIBO

BIBO( BiB3O6) 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.

Specifications

· Dimension tolerance: (W±0.1mm)x(H±0.1mm)x(L+0.5/-0.1mm) (L≥2.5mm)
(W±0.1mm)x(H±0.1mm)x(L+0.1/-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: Δθ≤0.25°, ΔΦ≤0.25°
· Damage threshold[GW/cm2 ]: >0.3 for 1064nm, TEM00, 10ns, 10HZ
· Quality Warranty Period: one year under proper use.

Table 1.Chemical and Structural 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

Table 2. 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)