BIBO BIBO (Bismuth Borate or BiB3O6) does great performances in possessing large effective nonlinear coefficient, high damage threshold and it is non-hydroscopic. Its nonlinear coefficient is 3.5 - 4 times higher than that of LBO, 1.5 -2 times higher than that of BBO. Uniquely, when BIBO is frequency-doubling the 946nm to produce blue laser at 473 nm, it represents great efficiency. ADVANTAGES ● Broad transparency range from 286nm to 2500nm ● High optical homogeneity and being free of inclusion ●Large effective SHG coefficient (about 9 times that of KDP) ● High damage threshold ● Wide temperature-bandwidth ● Non hygroscopic
Specifications
Dimension tolerance | W (± 0.1 ) x H (± 0.1 ) x L (+ 0.5/-0.1)mm |
Wavefront distortion | λ/8 @ 633 nm |
Clear aperture | > 90% |
Flatness | λ/8 @ 633 nm |
Scratch/Dig | 10-5@MIL-O-13830A |
Parallelism | <20 arc seconds |
Perpendicularity | <15 arc minutes |
Angle tolerance | Δθ≤0.25°, ΔΦ≤0.25° |
AR coating | R< 0.2% @ 1064nm and R<0.5% @ 532 nm |
Quality Warranty Period | one year under proper use |
Damage Threshold | 500MW/cm²@1064nm 10ns 10Hz |
Properties
Crystal Structure | Monoclinic,Point group 2 |
Lattice Parameter | a=7.116Å, b=4.993Å, c=6.508Å, β=105.62° ,Z=2 |
Melting Point | 726°C |
Mohs Hardness | 5-5.5 |
Density | 5.033 g/cm3 |
Thermal Expansion coefficient | αa=4.8x10-5/K |
αb=4.4x10-6/K | |
αc=-2.69x10-5/K | |
Transparency Range | 286-2500nm |
NLO coefficients (pm/V) | d12=d14=2.3 |
d25=d36=2.4 | |
d11=2.53 | |
d13=-1.3 | |
d35=-0.9 | |
d26=2.8 | |
Sellmeier Equations (λ in μm) | n12=3.6545+0.0511/(λ2-0.0371)-0.0226λ2 |
n22=3.0740+0.0323/(λ2-0.0316)-0.01337λ2 | |
n32=3.1685+0.0373/(λ2-0.0346)-0.01750λ2 |
