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.
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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.
SHG, THG
OPA and OPO
Broad transparency range from 160nm to 2600nm
High optical homogeneity (δn≈10-6/cm) and free of inclusion
Large effective SHG coefficient
Wide acceptance angle and small walk-off
Type I and type II non-critical phase matching (NCPM) in a wide wavelength range
High damage threshold(18.9 GW/cm 2 for a 1.3ns laser at 1053nm)
Spectral NCPM near 1300nm
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 |
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 |
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 |
