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NLO crystals

LBO Crystal

LBO Crystal

 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.

LBO Crystal
LBO Crystal

 Advantages:

• broad transparency range from 160nm to 2600nm (see Figure 1);
• high optical homogeneity (δn≈10-6/cm) and being free of inclusion;
• relatively large effective SHG coefficient (about three times that of KDP);
• 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.
• high damage threshold(18.9 GW/cm 2 for a 1.3ns laser at 1053nm);                   LBO has the highest damage threshold in all the commonly-used inorganic NLO crystals. Therefore, it is the best candidate for high average power SHG and other nonlinear optical processes.
Comparison of Bulk Damage Threshold (@1053nm ,1.3ns) 
Crystal 
Energy Density (J/cm 2 ) 
Power Density (GW/cm 2 ) 
Ratio 
KTP 
KDP 
BBO 
LBO 
6.0 
10.9 
12.9 
24.6 
4.6 
8.4 
9.9 
18.9 
1.00 
1.83 
2.15 
4.10 
 
LBO's main applications 
• SHG, THG of Nd lasers
• SHG of Ti:Sapphire, Cr:LiSAF and Alexandrite lasers
• OPA and OPO
 

LBO specification:

Tolerance of cutting angle
△θ≤±0.25°,△φ≤±0.25°
Tolerance of dimension
Dimension+/-0.1 mm,L:±0.1mm
Flatness
λ/8 @ 632.8nm
Wavefront distortion
λ/8@ 632.8nm
Surface quality
10/5  per MIL-O-13830A
Parallelism
10″
Perpendicularity
5′
Bevel/chamfer
<0.1mm@45deg.
Chips
<0.1mm
CA
>95%
Coating
AR/P-coating Upon customer’s request
Damage Threshold
  750MW/CM2 at 1064nm, TEM00, 10ns, 10Hz
Warranty
        One year under proper use