STANDARD SPECIFICATIONS
Flatness | λ/8 @ 633 nm |
Parallelism | < 20 arcsec |
Perpendicularity | < 5 arcmin |
Angle tolerance | < 30 arcmin |
Aperture tolerance | ± 0.1 mm |
Surface quality | 10/5 scratch & dig per MIL-O-13830A |
Clear aperture | 90% of full aperture |
PHYSICAL AND OPTICAL PROPERTIES
Chemical formula | BaB2O4 |
Crystal structure | trigonal, 3m |
Optical symmetry | Negative Uniaxial (no>ne) |
Space group | R3c |
Density | 3.85 g/cm3 |
Mohs hardness | 5 |
Optical homogeneity | ∂n = 10-6 cm-1 |
Transparency region at “0” transmittance level | 189 – 3500 nm |
Linear absorption coefficient at 1064 nm | < 0.1% cm-1 |
Refractive indices | no ne |
at 1064 nm at 532 nm at 355 nm at 266 nm at 213 nm |
1.6551 1.5426 1.6750 1.5555 1.7055 1.5775 1.7571 1.6139 1.8465 1.6742 |
Sellmeier equations (λ, μm) |
no2 = 2.7366122 + 0.0185720 / (λ2 – 0.0178746) |
Phase matching range Type 1 SHG | 410 – 3300 nm |
Phase matching range Type 2 SHG | 530 – 3300 nm |
Walk-off angle | 55.9 mrad (Type 1 SHG 1064 nm) |
Angular acceptance | 1.2 mrad × cm (Type 1 SHG 1064 nm) |
Thermal acceptance | 70 K × cm (Type 1 SHG 1064 nm) |
Nonlinearity coefficients | d22 = ± 2.2 pm/V d15 = d31 = ± 0.08 pm/V |
Effective nonlinearity expressions | dooe = d31 sinθ – d22 cosθ sin3φ deoe = doee = d22 cos2θ cos3φ |
Thermal expansion coefficient | α11 = 4 × 10-6K-1 α33 = 36 × 10-6K-1 |
Damage threshold for TEM00 1064 nm | > 0.5 GW/cm2 at 10 ns ~ 50 GW/cm2 at 1 ps |
EKSMA Optics BBO Crystals
125.92 kB |
Beta Barium Borate (BBO) is a nonlinear optical crystal with a combination of unique features:
As a result of its excellent properties BBO crystal has a number of advantages for different applications, like NOPA with fsec pulses, harmonics generation (up to fifth) of Nd:YAG and Nd:YLF lasers, frequency doubling or tripling of femtosecond Ti:Sapphire and dye lasers, OPO at Type 1 and Type 2 phase-matching, E/O switching for Pockels cells and many other.
We offer:
Most of our standard crystals come mounted into open ring holders. Please note the letter "H" in the product code which indicates that crystal is supplied mounted.
Publication on refractive indices of BBO crystal:
https://www.osapublishing.org/ome/fulltext.cfm?uri=ome-8-6-1410&id=386031