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β-BBO Crystal, a nonlinear crystal for frequency conversion in the ultraviolet, visible and near-infrared, has low group-velocity dispersion, high nonlinear optical coefficients, high damage threshold and broad transparency range. Due to these excellent features, BBO can widely be used in not only nonlinear optical applications such as frequency converters and optical parametric oscillators, but also in the realm of quantum optics such as generation of entangled photon pairs and ten-photon entanglement.
| Size (mm3) | Phase Matching Angle | Coating | Order |
| 6*6*1.5 | Type Ⅰ θ=23.4° φ=90° | AR@515nm&1030nm |  |
| 6*6*1.5 | Type Ⅰ θ=29.2° φ=90° | AR@400nm&800nm | |
| 6*6*2 | Type Ⅰ θ=23.4° φ=90° | AR@515nm&1030nm | |
| 6*6*2 | Type Ⅰ θ=29.2° φ=90° | AR@400nm&800nm | |
| Property | Value |
| SHG Phase Matchable Range | 409.6 ∼ 3500nm (Type I); 525 ∼ 3500nm (TypeII) |
| NLO Coefficients | d11= 5.8 x d36(KDP); d31 = 0.05 x d11; d22< 0.05 x d11 |
| deff(I)=d31sinθ+ (d11cos3φ – d22sin3φ)cosθ | |
| deff(II)=(d11sin3φ+ d22cos3θ)cos2θ | |
| Therm-Optic Coefficients | dno/dT = – 9.3 x 10-6/◦C |
| dne/dT = -16.6 x 10-6/◦C | |
| Electro-Optic Coefficients | g11= 2.7 pm/V, g22, g31< 0.1 g11 |
| Half-Wave Voltage | 48 KV (at 1064 nm) |
| Damage Threshold | |
| at 1.064 μm | 5 GW/cm2 (10 ns); 10 GW/cm2 (1.3 ns) |
| at 0.532 μm | 1 GW/cm2 (10 ns); 7 GW/cm2 (250 ps) |
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