

Alpha Barium Borate Crystals (α-BBO)
G&H Alpha Barium Borate (α-BBO) crystals and boules are high-quality birefringent materials widely used for polarization control in ultraviolet to near-infrared applications.
Full Product Description- Beamsplitting:
- Yes
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
| Name | Value |
|---|---|
| Crystal Type | Alpha Barium Borate (α-BBO) |
| Transparency Range | 190 – 3000 nm |
| Birefringence | High |
| Phase-Matching Range | Not applicable |
| Damage threshold | Excellent |
| Beamsplitting | Yes |
(Values for Guidance Only - refer to datasheet where available)
Applications
- UV polarizers and beam splitters
- Retarders and waveplates
- Excimer laser systems
- UV lithography and astronomy optics


