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HGO grows BBO Nonlinear crystals using flux technology. BBO crystal transparency ranges from
188 nm to 5,2 µm, which includes reasonable transparency from
3-5,2 µm for few tens µm thick crystals, while their phase-matchable
range spans almost over the entire transparency range. Combined with other
magnificent properties of BBO, it is favorable for numerous nonlinear
parametric applications. It is worth to mention that BBO crystals have
the highest nonlinearity in the UV range out of all common nonlinear crystals.
Product Origin:
ChinaShipping Port:
Fuzhou, ChinaLead Time:
3-4weeks
Descriptions:
HGO grows BBO Nonlinear crystals . BBO crystal transparency ranges from 188 nm to 5,2 µm, its phase-matchable range spans almost over the entire transparency range. BBO crystals have the highest nonlinearity in the UV range out of all common nonlinear crystals.
lMain applications:
1） Harmonic generation (up to fifth) of pulsed Nd-doped crystal-based lasers.
2） Frequency doubling, a tripling of pulsed Ti:sapphire, Yb-doped, dye lasers.
3） Characterization of ultrashort laser pulses by FROG, XFROG, SPIDER, dispersion scan, chirp scan methods.
4） OPA and OPO.
5） Pockels' Cell
Advantages:
1) Broad phase match range from 409.6 nm to 3500 nm;
2) Wide transmission region from 190 nm to 3500 nm;
3) Large effective second-harmonic-generation (SHG) coefficient;
4) High damage threshold;
5) High optical homogeneity with δn ≈10-6/cm;
6) Wide temperature-bandwidth of about 55℃.
Optical and Nonlinear properties of BBO crystal
|
Transparency Range |
190-3500nm |
|
SHG Phase Matchable Range |
409.6-3500nm (Type I) 525-3500nm (Type II) |
|
Therm-optic Coefficient (/℃, λ in μm) |
dno/dT=-16.6x 10-6/℃ |
|
Absorption Coefficients |
<0.1%/cm(at 1064nm) <1%/cm(at 532nm) |
|
Angle Acceptance |
0.8mrad·cm (θ, Type I, 1064 SHG) |
|
Temperature Acceptance |
55℃·cm |
|
Spectral Acceptance |
1.1nm·cm |
|
Walk-off Angle |
2.7° (Type I 1064 SHG) |
|
NLO Coefficients |
deff(I)=d31sinθ+(d11cos3Φ- d22 sin3Φ) cosθq |
|
Non-vanished NLO susceptibilities |
d11 = 5.8 x d36(KDP) |
|
Sellmeier Equations (λ in μm) |
no2=2.7359+0.01878/(λ2-0.01822)-0.01354λ2 |
|
Electro-optic coefficients |
γ22 = 2.7 pm/V |
|
Half-wave voltage |
7 KV (at 1064 nm,3x3x20mm3) |
|
Resistivity |
>1011 ohm·cm |
|
Relative Dielectric Constant |
εs11 / εo : 6.7 |
Physical properties of BBO crystal
|
Crystal Structure |
Trigonal，Space Group R3c |
|
Lattice Parameter |
a=b=12.532Å,c=12.717Å,Z=6 |
|
Melting Point |
About 1095℃ |
|
Mohs Hardness |
4 |
|
Density |
3.85 g/cm3 |
|
Refractive indices |
no = 1,6551; ne = 1,5426 |
|
Thermal Conductivity |
⊥c: 1.2W/m/K; //c: 1.6W/m/K |
|
Thermal Expansion Coefficients |
α11=4 x 10-6/K; α33=36x 10-6/K |
HGO offers BBO specifications:
|
Tolerance of cutting angle |
△θ≤±0.25°,△φ≤±0.25° |
|
Tolerance of dimension |
Dimension+0/-0.1 mm，L：±0.1mm |
|
Flatness |
λ/10 @ 632.8nm |
|
Wavefront distortion |
λ/8@ 632.8nm |
|
Surface quality |
10/5 per MIL-O-13830A |
|
Parallelism |
20″ |
|
Perpendicularity |
5′ |
|
Clear Aperture: |
> 90% |
|
Chamfer: |
< 0.1 mm @ 45° |
|
Size |
Upon customer request |
|
Coating |
AR/PR coating upon customer’s request |
|
Damage Threshold |
750MW/CM2 at 1064nm, TEM00, 10ns, 10Hz |
|
Quality Warranty Period |
One year under proper use |
Why Choose HGO ?
HGO grows BBO crystals(Beta-Barium Borate Crystal) in house using Flux growth technology. High quality of starting material is used for crystal growth and strict quality control is applied to our BBO’s absorption ,scattering loss, bulk loss ,wavefront distortion ,inclusions and all the other required processing specs which assures that each crystal from HGO will comply with will comply with customer’s specification and perform well in laser system.
HGO can supply size of BBO up to 15mm*15mm*15mm and length from 0.05mm up to 25mm. We have over 13 years crystals growth experiences and HGO’s BBO has been well recognized for its high quality and low price by our customers from all over the world.
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