Pump wavelength range: 350 - 800 nm.
Common pumps:
~ 390 - 415 nm (Diode lasers, Ti:Sapphire lasers)
~ 351 - 355 nm (THG of Nd: lasers)
Standard crystals are designed for Type I degenerate SPDC
Half opening angle between signal/idler: 3o
Crystals for the opening angle = 0o (collinear phase matching) or other angles
are availble upon request.
Non-degenerate SPDC crystals are available upon request.
Aperture sizes: 5x5 mm, 8x8 mm. OD 1" mounted.
Part No. | Description | Wavelength | Price | Availability | Add to Cart |
Structural and Physical Properties:
Crystal Structure | Monoclinic, Point group 2 |
Lattice Parameters | a=7.116 Å, b=4.993 Å, c=6.508 Å, β=105.6°, Z =2 |
Melting Point | 726 °C |
Mohs Hardness | 5 - 5.5 |
Specific Heat | 0.5 J/gm-K at 330 K |
Thermal Expansion | 4.8x10-5[X], 4.4x10-6[Y], -2.69x10-5[Z] |
Density | 5.033 g/cm3 |
Optical Properties:
Transmission Range | 286-2500 nm (Transmission Curve@200-800nm, Thin BiBO, T=2.0mm) |
NLO Coefficients | d11=2.53pm/V, d12=2.93pm/V, d13=-1.93pm/V, d14=1.63pm/V, d25=1.67pm/V, d26=3.48 pm/V d35=-1.58pm/V, d36=1.67pm/V (defined in the principal optical axes xyz: nz>ny>nx, x-1, y-2, z-3) |
Refractive Indices | @539.75 nm: nx = 1.7874, ny = 1.8190, nz = 1.9620 @1079.5 nm: nx = 1.7569, ny = 1.7835, nz = 1.9166 |
Sellmeier Equations (λ in µm) |
nx2=3.0740+0.0323/(λ2-0.0316)-0.01337λ2 ny2=3.1685+0.0373/(λ2-0.0346)-0.01750λ2 nz2=3.6545+0.0511/(λ2-0.0371)-0.0226λ2 |
Specifications of BiBO SPDC crystals:
Wavefront distortion: | ≤ λ/6 @ 633nm |
Clear aperture: | > 90% central area |
Flatness: | ≤ λ/6 @ 633nm |
Scratch/Dig: | 20/10 to MIL-O-13830A |
Parallelism: | better than 30 arc seconds |
Angle tolerance: | Δθ < +/-0.25o, Δφ < +/-0.25o |
Coating:
AR@405/810nm for 405nm pumped SPDC crystals
Uncoated for pumps other than 405nm unless coating is specified.
Configuration of Mounted BiBO Crystal for SPDC in YZ plane:
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