LBO Crystal (Lithium Triborate Crystal)

United Photonics 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.

 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.

LBO's main applications 

• SHG, THG of Nd lasers

• SHG of Ti:Sapphire, Cr:LiSAF and Alexandrite lasers

• OPA and OPO

UPT offer LBO specification:

Note: OEM Dimension, different axis angle cutting and coating and damage threshold upon request, others are available upon request.