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BIBO(BiB3O6) Crystal

BIBO(BiB3O6)is a newly developed nonlinear Optical Crystal. It posssses large effective nonlinear coefficient,high damage threshold and inertness with respect to moisture. Its nonlinear coefficient is 3.5-4 times higher than that 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.

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
        emperature 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)

 

 

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Ante Laser Technology Co.,Ltd

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