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α-BBO - Alpha-Barium Borate

α-BBO is a negative uniaxial crystal which has large birefringence over a broad transparent range of 190 nm-3500 nm. α-BBO is an excellent crystal especially in UV and high power applications. The physical, chemical, thermal and optical properties of α-BBO crystal are similar to those of β-BBO. However, the nonlinear optical properties of α-BBO crystal are nonexistent due to the centrical symmetry of its crystal structure. α-BBO crystal is recommended for NLO processes. 



Main features:                                                                          

♦ High UV transmittance                            

♦ Large birefringence                                                            

♦ Low bulk absorption suitable for high power applications           

♦ High damage threshold                               

♦ Stable physical and mechanical properties

We offer:

♦ Different sizes crystals can be customized

♦ Provide professional services

♦ High quality quality assurance


Technical Parameters

Argument nameValues and Ranges
Size tolerance

±0.1 mm

Optical Axis Orientation


Clear aperture> 90%
Surface Quality


Wavefront Distortionλ/2@633nm
Parallelism< 15 arc sec

Beam deviation

< 3 arc min
CoatingUpon customers' requirements
Quality warranty period1 year (with normal use)

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