LiB3O5(LBO)

Lithium Triborate (LiB3O5 or LBO) is an excellent nonlinear optical crystal discovered and developed by Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences.
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LiB3O5(LBO)

Lithium Triborate (LiB3O5 or LBO) is an excellent nonlinear optical crystal discovered and developed by Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences. Lambda has the exclusive rights and Sufficient experience to produce, manufacture and market the patented LBO crystal and its NLO devices. 

•   Broad transparency range from 160nm to 2600nm;
•   High optical homogeneity (dn»10-6/cm) and being free of inclusion;
•   Relatively large effective SHG coefficient (about three times that of KDP);
•   High damage threshold;
•   Wide acceptance angle and small walk-off;
•   Type I and type II non-critical phase matching (NCPM) in a wide wavelength range;
•   Spectral NCPM near 1300nm.
 
1) LBO Base:
Speicfications:
Material: .....................................LBO(LiB3O5 )
Orientation Tolerance: ...................0.3 degree
S/D: .........................................................10-5
Flatness: .........................................Lambda/4
Wavefront Distortion: ....................Lambda/10
Bevel: .....................................0.25x45 degree
 
Part No.
A(mm)
B(mm)
L(mm)
Theta
Phi
LBO 101
3.0
3.0
15.0
90°
9°
LBO 102
5.0
3.0
15.0
43.7°
90°
LBO 103
5.0
3.0
8.0
90°
19°
Note: Other sizes and specifications are available upon request.
 
2) LBO Wedges:
Speicfications:
Material: .....................................LBO(LiB3O5 )
Orientation Tolerance: ...................0.3 degree
S/D: .........................................................10-5
Flatness: .........................................Lambda/4
Wavefront Distortion: ....................Lambda/10
Bevel: .....................................0.25x45 degree
 
Part No.
A(mm)
B(mm)
L(mm)
Theta
Phi
Wed.
LBO 201
3.0
3.0
16.0
90°
0°
1.5°
Note: Other sizes and specifications are available upon request.

Physical and Optical Properties:

Crystal Structure.....................................................Orthorhombic, point group mm 2 
Transparency Range...........................................................................160 - 2600 nm 
Cell Parameters...............................................a=8.44731Å, b=7.3788Å, c=5.1395Å  
Melting Point.................................................................................................834°C   
Optical Homogeneity...........................................................................Δn ≈ 10-6 /cm 
Mohs Hardness......................................................................................................6 
Density.......................................................................................................2.47g/cm3  
Phase-matchable SHG range..................................................................800-2000nm 
Absorption Coefficient...........................................................<=1%/cm at 1064nm     
Damage Threshold at 1.064 mm..........................................24.6J/cm2; 18.9GW/cm2 
Refractive Indices:
..........................................at 1.0642 mm Nx = 1.56447 Ny = 1.59050 Nz = 1.60538
..........................................at 0.5321 mm Nx = 1.57842 Ny = 1.60650 Nz = 1.62154
 
Typical Specification and Capabilities
Angle tolerance..................................................................Δθ< ± 0.5°; Δφ< ±0.5° 
Dimension tolerance................(W ± 0.2mm) x (H ± 0.2mm) x (L + 0.2mm/-0.2mm) 
Flatness...........................................................................................λ /4 @ 632.8nm 
Scratch/Dig code........................................................Better than 20/10 Scracth/dig 
Parallelism.....................................................................................< 20 arc seconds 
Perpendicularity.............................................................................< 30 arc minutes 
Wavefront distortion.........................................................................< λ/4 @ 632nm 
Clear aperture.......................................................................................Central 80% 
Aperture...................................................................................................2 ~ 10mm 
Length....................................................................................................0.3~20 mm 
Phase matching type......................................................................Type I or Type II 
End configuration.............................................Flat, spherical, parallel and wedged 
Typical Coating........................................................................Antireflective Coating 
 

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