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G&H growing electro-optical crystals - A collection of polished electro-optical crystal boules arranged on a dark surface. The transparent, cylindrical crystals have glossy finishes and unique internal reflections, indicating high purity and precision for use in advanced optical or photonic applications.

Beta Barium Borate Crystals (β-BBO)

G&H Beta Barium Borate (β-BBO) is a widely used nonlinear optical crystal offering broad transparency, high nonlinear coefficients, and excellent optical damage resistance.

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Product description

G&H Beta Barium Borate (β-BBO) crystals are high-performance nonlinear optical materials known for their broad transparency range (190–3000 nm), high damage threshold, and wide phase-matching capabilities. Ideal for frequency conversion processes such as second and third, harmonic generation (SHG, THG), sum and difference frequency generation, and optical parametric generation, β-BBO is widely used in ultrafast lasers, solid-state lasers, tunable light sources, and scientific research.

Its low birefringent walk-off and high nonlinear coefficient make it a preferred choice for precise and efficient wavelength conversion. G&H provides β-BBO crystals with high optical quality and customizable phase-matching orientations for optimal performance in demanding laser systems.

BBO (beta barium borate) crystals are used for both nonlinear and electro-optic applications, from the near infrared to the deep ultraviolet. BBO is well suited for use in Pockels cells for both standard and large Q-switches that control energetic, short light pulses from high-power UV laser systems. Market applications of BBO crystals include manufacturing processes such as disk-mastering.

Key features

  • High-quality β-BBO crystal growth and finishing
  • AR-coated, mounted or raw optic delivery
  • Engineering support for phase matching and crystal orientation
  • Ideal for OEM, scientific, and defense laser applications
  • Crystal boules available

Related Products

  • SHG/THG Assemblies for 1064 nm Lasers
  • OPO/OPA Crystal Modules
  • Custom-cut Nonlinear Crystals
  • Ultrafast-compatible BBO Optics
  • Pockels Cells

Specifications

NameValue
Crystal TypeBeta Barium Borate (β-BBO)
Transparency Range190 – 3000 nm
Phase-Matching RangeType I SHG: 0.42 – 2.4 µm, Type II SHG: 0.53 – 2.2 µm
Nonlinear Coefficientd22 ≈ 2.3 pm/V
HygroscopicityMild
Damage thresholdHigh (10 GW/cm² at 1064 nm, 10 ns, 1 mm diameter)
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Applications

  • Frequency doubling/tripling of Nd:YAG lasers
  • Optical parametric oscillators (OPOs)
  • Ultrafast autocorrelators
  • Tunable laser systems (UV to near-IR)
  • LIDAR and spectroscopy
  • Medical and remote sensing lasers
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