◇ Broad phase-matchable 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 greater than that
of KDP crystal
◇ High damage threshold
◇ High optical homogeneity with dn > 10^-6/cm
◇ Wide temperature-bandwidth of about 55°C.
Standard
Specifications
Items
Specifications
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+0.2/-0.1mm) (L<2.5mm)
Clear aperture
central 90% of the diameter
Flatness
≤l/8 @ 632.8nm
wavefront distortion
≤l/8 @ 632.8nm
Bevel
≤0.2mm@45°
Chip
≤0.1mm
Surface Quality
scratch and dig 10-5
Parallelism
≤ 20 arc seconds
Perpendicularity
≤5 arc minutes
Angle tolerance
≤0.1°
Damage threshold[GW/cm ]:
>1 for 1064nm, TEM00, 10ns, 10HZ (polished only)
>0.5 for 1064nm, TEM00, 10ns, 10HZ (AR-coated)
>0.3 for 532nm,TEM00, 10ns, 10HZ (AR-coated)
NOTE:
◇BBO has a low susceptibility to the moisture. The user is advised to provide dry conditions for both the use and preservation of BBO.
◇BBO is relatively soft and therefore requires precautions to protect its polished surfaces.
◇When angle adjusting is necessary, keep in mind that the acceptance angle of BBO is small.