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BIBO Crystals

  • Broad transparent range from 286nm to 2500nm
  • Large effective SHG coefficient (~ 9 times that of KDP)
  • High damage threshold
  • Maximum aperture: 15x15mm
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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 to 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)
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 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 for the growth of BIBO single crystals. 
Large crystal size up to 10x10x15mm 
AR coating, mounts and re-polishing service

Application Notes:

  1. SHG and THG for middle and high power Nd: lasers at 1064nm
  2. SHG and THG of high power Nd: lasers at 1342nm & 1319nm for red and blue laser
  3. SHG for the Nd: Lasers at 914nm & 946nm for blue laser
  4. Optical Parametric Amplifiers (OPA) and Oscillators (OPO) application