Beta-barium-borate (BBO) is a nonlinear optical (NLO) crystal with a unique set of features: a large nonlinear coefficient for ultraviolet (UV) applications, a high damage threshold (LIDT), broad phase matching, low group delay dispersion (GDD) for ultrafast applications, and a wide transparency range.
BBO crystals are among the best electro-optical (E-O) and top-tier nonlinear optical (NLO) crystals. They are widely used for 2nd to 5th harmonic generation in many popular lasers and optical parametric oscillators (OPOs), especially (but not limited to) Ti: Sapphire, Yb: KGW/KYW laser systems, Pockels cells and other applications.
Material: BBO
Type : I
Theta = 33.1 deg, phi = 90 deg
Dimensions: 5x5x3 mm
Surface quality before coatings: 20-10 S-D
Surface flatness before coatings: L/8
Parallelism: less than 30 arcsec
Coatings: S1/S2: AR(R less than 0.5%) @ 355+710 nm, AOI = 0 deg
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