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The BBO Crystal is a high-temperature phase of BaB2O4, is an excellent birefringent crystal an efficient NLO crystal for the second, third and fourth harmonic generation of Nd: YAG lasers, and the best NLO crystal for the fifth harmonic generation at 213 nm. Conversion efficiencies of more than 70% for SHG, 60% for THG and 50% for 4HG, and 200 mW output at 213 nm (5HG) have been obtained, respectively. BBO Crystal has been widely used in 2,3,4 or 5 harmonic generations for high power visible/UV sources, and optical parametric conversions for high power broadly tunable sources.

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The BBO Crystal is a high-temperature phase of BaB2O4, is an excellent birefringent crystal an efficient NLO crystal for the second, third and fourth harmonic generation of Nd: YAG lasers, and the best NLO crystal for the fifth harmonic generation at 213 nm. Conversion efficiencies of more than 70% for SHG, 60% for THG and 50% for 4HG, and 200 mW output at 213 nm (5HG) have been obtained, respectively. BBO Crystal has been widely used in 2,3,4 or 5 harmonic generations for high power visible/UV sources, and optical parametric conversions for high power broadly tunable sources. Advantages of BBO Crystals Broad phase-matching range from 409.6 nm to 3500 nm Extensive optical transmission from 190 nm to 3500 nm Large effective second-harmonic-generation (SHG) coefficient High damage threshold of 10 GW/cm2 for 100 ps pulse-width at 1064 nm Wide temperature-bandwidth of about 55℃ Excellent mechanical and physical properties Specifications Aperture: 2x2 ~ 25x25mm Lenght: 0.01 - 25mm Cutting Angle of BBO Crystal q and f: Determined by different kinds of harmonic generation Phase matching type: Type I or Type II End Configuration: Plano/Plano or Brewst/Brewst or Specified Specifications of BBO Crystal Angle tolerance: Δθ< ± 0.5°; Δφ< ±0.5° Dimensional Tolerance: (W ± 0.1mm) x (H ± 0.1mm) x (L + 0.2mm/-0.1mm) Flatness: <λ/8 at 633nm Surface Quality: 10/5 S/D Parallelism: < 20 arc seconds Perpendicularity: < 5 arc minutes Wavefront Distortion: <λ/8 at 632.8nm Clear Aperture: Central 95% Chamfer: 0.15x45° Coating: * Protective coating is required to prevent polished surfaces from fogging. * Anti-reflective coating should be considered if low reflectivity is required. If you want to know BBO crystal price and more information, please leave us a message.