Beta-Barium Borate (β-BaB2O4,BBO)

Detail

Feature
   Broad phase match range from 409.6 nm to 3500 nm;
   Wide transmission region from 190 nm to 3500 nm;
   Large effective second-harmonic-generation (SHG) coefficient about 6 times
Application:
Nd: YAG and Nd: YLF laser for two, three, four or five harmonic generation
   Dye laser's frequency, third harmonic generation and mixing
   Ti:Sappire and Alexandrite for two, three, four or five octave
   Optical parametric amplifier (OPA) and optical parametric oscillator (OPO)
   Argon ion, ruby and Cu vapor laser for harmonic generation
   In all-solid-state tunable lasers, ultrafast pulse lasers, such as Deep Purple outside the laser,
   precision laser technology R & D
   Chemical and Structural properties of BBO

Crystal Structure:	Trigonal, space group R3c
Lattics Parameters:	a=b=12.532?, c=12.717?, Z=6
Melting point	About 1095℃
Mohs Hardness	4
Density	3.85g/cm3
Thermal Conductivity	1.2W/m/K(┴c): 1.6W/m/K(//c)
Thermal Expansion Coefficients	a11=4x10-6/K; a33=36x10-6/K

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Specifications

Transmitting wave front distortion	less than λ/8 @ 633nm
Dimension tolerance	(W±0.1mm)x(H±0.1mm)x(L+0.5/-0.1mm) (L≥2.5mm) (W±0.1mm)x(H±0.1mm)x(L+0.1/-0.1mm) (L<2.5mm)
Clear aperture	central 90% or the diameter
Flatness	λ/8 @ 633nm
Scratch/Dig code	10/5 to MIL-PRF-13830B
Parallelism	≤20 arc seconds
perpendicularity	≤5 arc minutes
Angle tolerance	△θ≤±0.25°,△φ≤±0.25°
Quality Warranty Period	one year under proper use

NOTES
1. BBO has a low susceptibility to the moisture. The user is advised to provide dry conditions for both the use and preservation of BBO.
2.BBO is relatively soft and therefore requires precautions to protect its polished surfaces.
3.When angle adjusting is necessary, keep in mind that the acceptance angle of BBO is small.

Detail