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Beta-Barium( β -BaB2O4 ,BBO) is a nonlinear optical crystal with combination of number of unique features such as wide transparency and phase matching range, large nonlinear coefficient, High damage threshold, wide temperature bandwidth and excellent optical homogeneity which provide attractive possibilities for various nonlinear optical applications.
BBO's Applications
Second ,third,,fourth and fifth harmonic generation of Nd:YAG and Nd:YLF lasers;
Frequency-doubling,-tripling and – mixing of Dye lasers;
Second ,third ， forth and fifth harmonic generation of Ti:Sapphire and Alexandrite lasers;
Research and development for advanced laser techniques, including all-solid state wide-tunable lasers,ultrafast pulse lasers, and DUV lasers.
Optical parametric amplifier (OPA) and optical parametric oscillators. (OPO)
CMD of Shanda Wit can provide technical support for customers such as film coating and provide all kinds of crystal materials with different sizes according to customers.
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Structural and Physical Properties: |
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Crystal structure |
Trigonal,space group R 3c |
Cell Parameters |
a ＝ b ＝ 12.532 ? c ＝ 12.7117 ? z ＝ 6 |
Melting point |
1095 ± 5 ℃ |
Transition temperature |
925 ± 5 ℃ |
Optical homogeneity |
δ n ＝ 10 -6 /cm |
Mohs hardness |
4-5 |
Density |
3.85g /cm 3 |
Absorption coefficient |
＜ 0.1 ％ /cm@1064nm |
Thermal conductivity |
⊥ c,1.2W/m/k c ∥ ,1.6W/m/k |
Linear Optical Properties: |
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Transparency range |
190-3500nm |
Refractive indices |
@1064nm n e ＝ 1.5425 n o ＝ 1.6551
@532nm n e ＝ 1.5555 n o ＝ 1.6749
@266nm n e ＝ 1.6146 n o ＝ 1.7571 |
Therm-optic coefficients |
dno/dT ＝ -9.3 × 10-6/ ℃
dno/dT ＝ -16.6 × 10-6/ ℃ |
Nonlinear Optical Properties: |
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Phase-matchable output wavelengths |
190-1750nm |
NLO coefficients |
d11 ＝ 5.8 × d 36 (KDP)
d31 ＝ 0.05 × d 11
d22 ＜ 0.05 × d 11
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Electro-optic coefficients |
r11 ＝ 2.7pm/v, r22,r31 ＜ 0.1 r11 |
Half-wave voltage |
48KV (at 1064nm) |
Damage threshold |
@1064nm 5GW/cm 2 (10ns); 10GW/cm 2 (1.3ns)
@532nm 1GW/cm 2 (10ns); 7GW/cm 2 (250ps) |
warranty |
Strict qulity control
Unbeatable preice and quantity discount
Quick delivery
Free technical support
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Standard specifications |
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Transmitting wavefront distortion |
less than λ /8 @633nm |
Dimension tolerance |
(W ± 0.1mm )*(H ± 0.1mm )*(L ± 0.1mm ) |
Angle tolerance |
△θ <0.2 0 △Φ <0.2 0 |
Clear aperture |
>90% |
Flatness |
λ /8@633nm |
Scratch/Dig code |
10/5 |
Parallelism |
<20 ″ |
Perpendicularity |
<5 ′ |
Coating |
AR/AR:1064nm/532nm R1064<0.1% R532<0.5%
AR/AR: 532nm/266nm R532<0.2% R266<0.5%
AR/AR: 1064nm/355nm R1064<0.2 R355<0.5% |
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