- Product Name: BBO
- Dimension Tolerance:W x H (+/- 0.1mm) x L (+0.5/-0.1mm)
- Angle Tolerance:Δθ ≤ 0.25°, Δφ ≤ 0.25°
- Parallelism:< 20 arc seconds
- Perpendicularity:< 5 arc minutes
- Chamfer:0.1mm at 45°
- Clear Aperture:90%
- Scratch and Dig:20/10
- Surface Flatness:λ/8 at 633nm
- Wavefront Distortion:λ/8 at 633nm
- Damage Threshold :> 0.5 GW/cm2 at 1064nm, TEM00, 10ns, 10Hz> 0.3 GW/cm2 at 532nm, TEM00, 10ns, 10Hz
Product overview
BBO crystal or Beta-Barium Borate (β-BaB2O4), has large effective second harmonic generation (SHG) coefficient about 6 times greater than that of KDP crystal, as well as excellent electro-optic crystal applied in the application of high power laser system at working wavelength from 200nm to 2500nm, such as a Q-switching CW diode pumped Nd:YAG laser and so on.Scitlion is able to offer
Size upto 15 x 15 x 15mm
Length from 0.02mm to 25mm
Coating upon your request
|
Density |
3.85 g/cm3 |
|
Melting Point |
1095℃ |
|
Mohs Hardness |
4 |
|
Thermal Conductivity |
1.2 W/m/K (⊥c-axis) 1.6 W/m/K (∥c-axis) |
|
Crystal Structure |
Trigonal |
|
Lattices Constans |
a=b=12.532A, c=12.717A |
|
Optical and Nonlinear Optical Properties |
|
|
Transparency Range |
190nm-3500nm |
|
SHG Phase Matchable Range |
409.6 nm-3500 nm (Type I) 525nm-3500nm (Type II) |
|
Thermal-Optic Coefficients |
dno/dT=-16.6×10-6/K dne/dT=-9.3×10-6 /K |
|
Absorption Coefficients |
< 0.1% cm-1 at 1064nm < 1% cm-1 at 532nm |
|
Angle Acceptance |
0.8 mrad·cm-1 (θ, Type I, 1064 SHG) |
|
Temperature Acceptance |
55 ℃·cm-1 |
|
Spectral Acceptance |
1.1 nm·cm-1 |
|
Walk-off Angle |
2.7° (Type I, 1064 SHG) 3.2° (Type II, 1064 SHG) |
|
NLO Coefficients |
deff (I)=d31sinθ+(d11cosΦ-d22sin3Φ)cosθ |
|
Non-vanished NLO Susceptibilities |
d11=5.8×d36 (KDP) d31=0.05×d11 d22<0.05×d11 |
|
Sellmeier Equations (λ in μm ) |
no2=2.7359+0.01878 / (λ2-0.01822) -0.01354 λ2 |
|
Electro-optic Coefficients |
r22=2.7 pm/V |
|
Half-wave Voltage |
7 kV (at 1064 nm, 3×3×20 mm3) |
|
Resistivity |
> 1011 Ω·cm |
|
Relative Dielectric Constant |
εs11/εo:6.7 εs33/εo:8.1 Tan δ<0.001 |
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