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| Information |
| Name： | BBO |
| Categories： | Crystals >> NLO Crystals |
| Model： | |
| Specifications： | |
| Brand： | |
| Product Code： | |
| Color： | |
| Price： | |
| Clicks： | 173 |
| Date： | 2010-02-20 19:01:16 |
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Beta-barium borate (BBO) has the following exceptional properties that make it a very important nonlinear crystal, BBO is grown with the flux method. It is a negative uniaxial crystal, with ordinary refractive-index (no) larger than extraordinary refractive-index (ne).
- SHG phase-matching range from 410 nm to 2100 nm
- Transmission from 190 nm to 3500 nm
- Large effective nonlinear coefficient
- High damage threshold ;
- Wide temperature-bandwidth of about 55°C.
Physical and Chemical Properties:
The Sellmeier equations (l in µm ):
no2=2.7359+0.01878/(l2-0.01822)-0.01354l2
ne2=2.3753+0.01224/(l2-0.01667)-0.01516l2
Optical and Spectral Properties:
BBO is of particular importance in the visible and far UV. A wide variety of phase-matching applications are possible, including the following:
- Second, third, fourth and fifth harmonic generation of Nd doping lasers;
- Frequency-doubling, -tripling and -mixing of Dye lasers;
- Second, third and fourth harmonic generation of Ti:Sapphire lasers;
- Optical parametric amplifier (OPA) and optical parametric oscillators (OPO);
| Dimension tolerance |
(W ± 0.1 mm) x (H ± 0.1 mm) x (L + /-0.2 mm) |
| Transmitting wavefront distortion: |
l/8 @ 633 nm |
| Clear aperture: |
> 90% central area |
| Flatness: |
l/8 @ 633 nm |
| Scratch/Dig code: |
10/5 to MIL-O-13830A |
| Parallelism: |
better than 20 arc seconds |
| Perpendicularity: |
15 arc minutes |
| Angle tolerance: |
Dq < ±0.3°, Df < ± 0.3° |
| AR coating: |
R< 0.1% at 1064nm and R<0.4% at 532 nm. |
| Quality Warranty Period: |
one year under proper use. |
Note:
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.
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Dimension
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Application
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Coating
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Type
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3x3x5mm
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S(T)HG@1064nm
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AR coating
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I or II
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4x4x10mm
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S(T)HG@1064nm
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AR coating
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I or II
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8x4x7mm
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SHG for Dye laser
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P-coating
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I
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5x5x1mm
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S(T)HG @800nm
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P-Coating
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I
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5x5x0.1mm
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S(T)HG @800nm
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P-coating
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I
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8x6x15mm
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OPO
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AR/AR Coating
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I or II
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