HOME > Products > UV Product Lineups > UV Nonlinear Optical Crystals > Long-life THG1064nm LBO Crystal
Lithium tri borate (LiB3O5 or LBO) is a typical nonlinear crystal for the SHG or THG of Nd: Lasers at 1064nm, a key-parts in the solid state UV Lasers.
Although LBO has excellent properties as high damage threshold and so on, some serious problem exist as THG crystal, that is, its surface with AR coating get worse or broken by high power UV beam irradiation for short time.
Our highly advanced polishing and coating technique, and a good combination between them create "Long Life THG LBO".
Our Long Life THG LBO achieve 2 or 3 times as long as our conventional sample, and improved resistance for UV Laser.
Our Long Life THG LBO that we have supplied are mounted on the high power UV Laser processing system around the world.
We can customize crystal angle and size except standard specification according to your request. It is available to re-polishing and coating for LBO crystals that you supply to us.
Specifications
Long Life THG-LBO ; Standard SpecificationThird Harmonic Generation (THG) - Crystal for Nd : LASER | |
Materials | LiB3O5 Crystal |
Phase maching parameter * | Type Ⅱ THG for λ = 064nm, 532nm → 355nm |
Crystal Angle(deg) | θ ± 0.25, φ ± 0.25, e.g. θ =(42.7), θ= (90) |
Size(mm) ** | W ± 0.1 × H ± 0.1 X L +0.5/-0.1 ; W=5, H=5, L=20 |
Clear Aperture(mm) | φ 4 |
Transmitted Wavefront, PV(λ) | ≦1/8 @ λ=633nm |
Flatness, PV(λ) | ≦1/8 @ λ=633nm |
Parallelism(arc second) | ≦20 |
Surface Quality | S/D = 10/5 |
Coating | AR coating on both sides |
Rfrectance | R≦0.2℅ @ λ=1064nm, R≦0.5% @ λ=532nm, 355nm AOI=0 deg |
** Size is customizable to request. Re-polishing and coating are also available for LBO crystal you supply.
