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HGO grows
LBO Nonlinear crystals using flux technology. LBO crystals is an excellent
nonlinear crystal.For frequency doubling(SHG),tripling(THG) of
Nd:YAG,Nd:YLF,Nd:YVO4 lasers, it is one of the most useful nonlinear optical
materials in ultraviolet and visible laser applications.
Product Origin:
ChinaShipping Port:
Fuzhou, ChinaLead Time:
3-4weeks
Descriptions：
HGO grows Lithium Triborate (LiB3O5, LBO) Nonlinear crystals using flux technology. LBO a broad
transparency range, wide acceptance angle, small walk-off angle, and the
highest damage threshold among common nonlinear crystals.
Most common applications include high-power near-infrared wavelength second harmonic generation, sum-frequency generation to produce visible, ultraviolet laser light, and visible, near-infrared widely tuned optical parametric oscillators. HGO are capable of providing uncoated super-polished LBO crystals desired, e.g. for high-power UV generation via sum-frequency generation of 1064 nm and 532 nm.
Main applications:
1) SHG, THG
2) OPA and OPO
Advantages:
1） Broad transparency range from 160nm to 2600nm;
2） High optical homogeneity (δn≈10-6/cm) and free of inclusion;
3） Large effective SHG coefficient;
4） Wide acceptance angle and small walk-off;
5） Type I and type II non-critical phase matching (NCPM) in a wide wavelength range;
6） High damage threshold(18.9 GW/cm 2 for a 1.3ns laser at 1053nm)
7） Spectral NCPM near 1300nm
Optical and Nonlinear properties of LBO crystal
|
Transparency Range |
160-2600nm |
|
SHG Phase Matchable Range |
551-2600nm (Type I) 790-2150nm (Type II) |
|
Therm-optic Coefficient (/℃, λ in μm) |
dnx/dT=-9.3x10-6 |
|
Absorption Coefficients |
<0.1%/cm at 1064nm <0.3%/cm at 532nm |
|
Angle Acceptance |
6.54mrad·cm (φ, Type I,1064
SHG) |
|
Temperature Acceptance |
4.7℃·cm (Type I, 1064 SHG) |
|
Spectral Acceptance |
1.0nm·cm (Type I, 1064 SHG) |
|
Walk-off Angle |
0.60° (Type I 1064 SHG) |
|
NLO Coefficients |
deff(I)=d32cosΦ (Type I in XY plane) |
|
Non-vanished NLO susceptibilities |
d31=1.05± 0.09 pm/V |
|
Sellmeier Equations (λ in μm) |
nx2=2.454140+0.011249/(λ2-0.011350)-0.014591λ2-6.60×10-5λ4 |
Physical properties of LBO crystal
|
Crystal Structure |
Orthorhombic, Space group Pna21, Point group mm2 |
|
Lattice Parameter |
a=8.4473Å,b=7.3788Å,c=5.1395Å,Z=2 |
|
Melting Point |
About 834℃ |
|
Mohs Hardness |
6 |
|
Density |
2.47g/cm3 |
|
Refractive indices |
nX= 1,5656; nY= 1,5905; nZ= 1,6055 @1064 nm |
|
Thermal Conductivity |
3.5W/m/K |
|
Thermal Expansion Coefficients |
αx=10.8x10-5/K, αy=-8.8x10-5/K,αz=3.4x10-5/K |
HGO offers LBO 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 LBO crystals( Lithium Triborate 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 LBO’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 large size of LBO up to 30mm*30mm*30mm and max length up to 60mm. We have over 13 years crystals growth experiences and HGO’s LBO has been well recognized as high qulity and low price by our customers from all over the world.
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