BBO Crystal (Beta-Barium Borate Crystal)

LBO Crystal (Lithium Triborate Crystal)

BBO crystal is an important nonlinear optical crystal with combination of unique optical properties. Broad transmission and phase matching ranges, large nonlinear coefficient, high damage threshold and excellent optical homogeneity provide attractive possibilities for various nonlinear optical applications.

Advantages:

•Broad phase matching (SHG) range from 409.6nm to 3500nm

•Wide transmission region from 190nm to 3500nm

•Large effective SHG coefficient

•High damage threshold of 10 GW/cm2 for 100 ps pulse-widths at 1064nm

•High optical homogeneity with Dn 10-6/cm2

•Wide temperature bandwidth of about 55° (for type I SHG 1064nm)

•Good mechanical and physical properties

BBO’s main applications:

*Second, third, fourth and fifth harmonic generation of Nd lasers

*Frequency-doubling, -tripling and -mixing of Dye lasers

*Second, third and fourth harmonic generation of Ti:Al O and Alexandrite lasers

*Optical parametric amplifiers (OPA) and optical parametric oscillators (OPO)

*Frequency-doubling of Argon ion, Cu-vapor and Ruby lasers

UPT offers BBO specification:

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

LBO Crystal (Lithium Triborate 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.

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: