LBO(LiB3O5) is another excellent nonlinear crystal of Borate-family following
BBO crystal. It features with:
•
Broad transparency range from 160nm to 2600nm;
• High optical homogeneity ( 1.0E-6/cm) and being free of inclusion;
• Medium 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 1300
Applications:
SHG, THG of Nd:Lasers
LBO is phase matchable for the SHG and THG of Nd:YAG and Nd:YLF lasers,
using either type I or type II interaction. For the SHG at room temperature,
type I phase matching LBO can be reached and has the maximum effective
SHG coefficient in the principal XY and XZ planes (see Fig. 2) in a wide
wavelength range from 551nm to about 2600nm. The optimum type II phase
matching falls in principal YZ and XZ planes. SHG conversion efficiencies
of more than 70% for pulse and 30% for cw Nd:YAG lasers, and THG conversion
efficiency over 60% for pulse Nd:YAG laser have been observed by using
LBO crystal.
•
Broad transparency range from 160nm to 2600nm;
