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Senior sales engineer
Arminas Butkus +370 5 219 4884
BBO crystals
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BBO crystals

Main features

 

  • Broad transparency ranges from 188 nm to 5,2 µm (reasonable transparency @3 µm - 5,2 µm for few tens µm thick crystals)
  • The broad phase-matchable range for various second-order nonlinear interactions over almost the entire transparency range
  • Wide thermal acceptance bandwidth
  • Highest nonlinearity of all UV nonlinear crystals
  • The high laser-induced damage threshold
  • Ultrathin crystals available for few optical cycle laser pulses
  • Custom size, orientation, and coatings are available upon request

 

Application examples

 

  • Harmonic generation (up to fifth) of pulsed Nd-doped crystal-based lasers
  • Frequency doubling, a tripling of pulsed Ti:Sapphire, Yb-doped, dye lasers
  • Widely tunable type I and II OPO
  • Characterization of ultrashort laser pulses by FROG, XFROG, SPIDER, dispersion scan, chirp scan methods 
Request custom
  • Description
  • Properties
  • Specifications
  • References

BBO crystal transparency ranges from 188 nm to 5,2 µm, which includes reasonable transparency from 3-5,2 µm for few tens µm thick crystals, while their phase-matchable range spans almost over the entire transparency range. Combined with other magnificent properties of BBO, it is favorable for numerous nonlinear parametric applications, e.g. harmonic generation of pulsed Yb-doped crystal-based lasers and frequency doubling, a tripling of Ti:Sapphire lasers, widely tunable type I and II OPO. It is worth to mention that BBO crystals have the highest nonlinearity in the UV range out of all common nonlinear crystals.

Physical and optical properties
Chemical formula β-BaB2O4
Crystal structure Rhomboedral, 3m
Lattice parameters a=12,532 Å, c=12,717 Å
Optical symmetry Negative uniaxial (no>ne)
Density 3,85 g/cm3
Mohs hardness 4-4,5
Transparency range 188 nm – 5,2 µm, reasonable from 3 µm to 5,2 µm for thin crystals (few tens of µm)
Sellmeier equations @188 nm - 5,2 µm range (λ in µm) no2 = 1 + 0,90291 λ2/(λ2 - 0,003926) + 0,83155 λ2/(λ2 - 0,018786) + 0,76536 λ2/(λ2 - 60,01);
ne2 = 1 + 1,151075 λ2/(λ2 - 0,007142) + 0,21803 λ2/(λ2 - 0,02259) + 0,656 λ2/(λ2 - 263)
Refractive indices no = 1,6551; ne = 1,5426
BBO crystals
Orientation accuracy <30 arcmin
Clear aperture >90%
Face dimensions tolerance +0,0/-0,1 mm
Parallelism error <20 arcsec
Perpendicularity error <5 arcmin
Protective chamfers <0,1 mm at 45°
Surface quality 10-5 S-D
Wavefront distortion <λ/8@632,8 nm
Coatings Low dispersion protective coatings or antireflective coatings on both sides
Laser-induced damage threshold >500 MW/cm2@1064 nm, 10 ns
UVFS support Crystals with <0,1 mm thickness are optically contacted to 0,5-1 mm UVFS support
Mount Mounted in ⌀25,4 mm black anodized aluminum mount
Support Crystals thinner than 0,1 mm are optically contacted onto UVFS support
Order your item
Face dimensions Length Theta Phi Coatings Application SKU PRICE QUANTITY
6x6 mm
2 mm
23,4°
90°
AR/AR@515+1030 nm
SHG@1030 nm, 200 fs, type I
10733
430 €
6x6 mm
0,1 mm
50°
90°
P/P@515/257 nm
SHG@515 nm, 50 fs, type I
15808
520 €
6x6 mm
0,15 mm
50°
90°
P/P@515/257 nm
SHG@515 nm, 100 fs, type I
15809
500 €
6x6 mm
0,3 mm
50°
90°
P/P@515/257 nm
SHG@515 nm, 200 fs, type I
15810
480 €
6x6 mm
0,05 mm
29,2°
90°
P/P@400-800 nm
SHG@800 nm, 10 fs, type I
15811
620 €
6x6 mm
0,2 mm
29,2°
90°
P/P@400-800 nm
SHG@800 nm, 50 fs, type I
15833
440 €
6x6 mm
0,01 mm
44,3°
90°
P/P@400-800 nm
THG@800 nm, 10 fs, type I
15834
700 €
6x6 mm
0,02 mm
44,3°
90°
P/P@400-800 nm
THG@800 nm, 20 fs, type I
15835
670 €
6x6 mm
0,05 mm
44,3°
90°
P/P@400-800 nm
THG@800 nm, 50 fs, type I
15836
620 €
6x6 mm
0,2 mm
44,3°
90°
P/P@400-800/266 nm
THG@800 nm, 200 fs, type I
15837
440 €
6x6 mm
0,5 mm
29,2°
90°
P/P@400-800 nm
SHG@800 nm, 100 fs, type I
6398
420 €
6x6 mm
0,1 mm
29,2°
90°
P/P@400-800 nm
SHG@800 nm, 20 fs, type I
6399
450 €
6x6 mm
1 mm
29,2°
90°
P/P@400-800 nm
SHG@800 nm, 200 fs, type I
6400
370 €
6x6 mm
0,1 mm
44,3°
90°
P/P@400-800/266 nm
THG@800 nm, 100 fs, type I
9044
450 €
6x6 mm
0,5 mm
23,4°
90°
AR/AR@515+1030 nm
SHG@1030 nm, 50 fs, type I
9447
440 €
6x6 mm
1 mm
23,4°
90°
AR/AR@515+1030 nm
SHG@1030 nm, 100 fs, type I
9448
400 €
6x6 mm
1,5 mm
23,4°
90°
AR/AR@515+1030 nm
SHG@1030 nm, 150 fs, type I
9449
430 €
6x6 mm
0,15 mm
32,5°
90°
AR/AR@515+1030/343 nm
THG@1030 nm, 50 fs, type I
9450
650 €
6x6 mm
0,25 mm
32,5°
90°
AR/AR@515+1030/343 nm
THG@1030 nm, 100 fs, type I
9451
580 €
6x6 mm
0,55 mm
32,5°
90°
AR/AR@515+1030/343 nm
THG@1030 nm, 200 fs, type I
9452
490 €