Lithium triborate (LiB3O5, LBO) crystal 4-LBO

non-linear opticallaser

LBO (LiB3O5) crystal is first picked among other non-linear crystals used to produce high power second and third harmonic laser light. Large band gap and transparency region, high non-linear coupling, good chemical and mechanical properties make this crystal capable of optical parametric processes (OPO/OPA) and noncritical phase matching (NCPM), too. Features: Broad transparency range from 160 nm to 2.6 µm High optical homogeneity Relatively large effective SHG coefficient (about three times that of KDP) 554 nm – 2.6 µm phase matching range for Type I SHG 790 nm – 2.15 µm phase matching range for Type II SHG Small angular SHG walk-off at room temperature, no NCPM walk-off at 149 °C Wide acceptance angle Wavelength range 160 – 2600 nm Aperture dimensions Ø1 – 25 mm Orientation accuracy of cut angle <30 arcmin Surface quality, S-D 10-5 Transmitted wavefront distortion, P-V <λ/8 @ 632.8 nm AR Coatings AR, BBAR, single layer protective