BiBO SPDC Crystals

BiBO SPDC Crystals
BiBO SPDC Crystals BiBO SPDC Crystals

 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.

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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)


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


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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