LBO Crystals


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.




• broad transparency range from 160nm to 2600nm

• 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.


Our capability:


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 Upon customer request
Damage Threshold 750MW/CM2 at 1064nm, TEM00, 10ns, 10Hz