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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.

Alpha Barium Borate Crystals (α-BBO)

G&H Alpha Barium Borate (α-BBO) crystals are high-quality birefringent materials widely used for polarization control in ultraviolet to near-infrared applications.

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Product description

Unlike its nonlinear counterpart β-BBO, α-BBO is not phase-matchable for frequency conversion but offers excellent transparency (190–3000 nm), high damage threshold, and strong birefringence. These properties make α-BBO ideal for use in polarizers, waveplates, and optical isolators, particularly in high-power and UV laser systems.

G&H supplies α-BBO crystals with precise angular tolerances and optical quality to ensure stable and efficient polarization manipulation in advanced photonic setups.

Key features

  • UV-grade crystal fabrication expertise
  • Custom sizing and coatings for UV applications
  • High uniformity and environmental stability
  • Metrology support for beam shaping and polarization
  • Crystal boules available

Related Products

  • UV waveplates and retarders
  • Custom-cut polarizing optics
  • Optics for lithography and UV spectroscopy

Specifications

NameValue
Crystal TypeAlpha Barium Borate (α-BBO)
Transparency Range190 – 3000 nm
BirefringenceHigh
Phase-Matching RangeNot applicable
Damage thresholdExcellent

Applications

  • UV polarizers and beam splitters
  • Retarders and waveplates
  • Excimer laser systems
  • UV lithography and astronomy optics