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:
Please view NLO crysals physical Properities (dpf format)
The Sellmeier equations (l in µm ):
Optical and Spectral Properties:
Please view NLO crysals optical and nonlinear optical Properities (dpf format)
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
Optical parametric amplifier (OPA) and optical
parametric oscillators (OPO);
||(W ± 0.1 mm) x (H ± 0.1 mm) x (L + /-0.2 mm)
|Transmitting wavefront distortion:
||l/8 @ 633 nm
||> 90% central area
||l/8 @ 633 nm
||10/5 to MIL-O-13830A
||better than 20 arc seconds
||15 arc minutes
||Dq < ±0.3°, Df < ± 0.3°
||R< 0.1% at 1064nm and R<0.4% at 532 nm.
|Quality Warranty Period:
||one year under proper use.
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.