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BIBO　非線形(NLO)結晶

BiB3O6 (BIBO) Crystal

KTA　非線形(NLO)結晶BIBO( BiB3O6) is a newly developed nonlinear Optical Crystal. It possesses large effective nonlinear coeffcient,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.

CASTECH offers

  • * Strict quality control;
  • Large crystal size up to 10x10x15mm3;
  • AR-coating,mounts and repolishing services;
  • Fast delivery

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℃
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 µm)
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)

CASTECH's Warranty on BIBO 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.

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