CLBO (Cesium Lithium Borate, CsLiB6O10) is a new type of nonlinear crystal. It has a wide transparent spectral range (175~2800 nm), a high nonlinear coefficient, 2.2 times that of KDP, and a small dispersion angle.
CLBO Crystals
CLBO (Cesium Lithium Borate, CsLiB6O10) is a new type of nonlinear crystal. It has a wide transparent spectral range (175~2800 nm), a high nonlinear coefficient, 2.2 times that of KDP, and a small dispersion angle.
The laser damage threshold is high, up to 26GW/cm2, and the multiplicative conversion efficiency is 60% (SHG). It can work at room temperature and is well suited for Nd: YAG lasers to produce 4w (266 nm) and 5w (213 nm) octave light output. It can be used for UV parametric oscillation (OPG) and parametric amplification (OPA).
Wide optical response wavelength range (UV absorption edge down to 180nm)
Processed and polished in low humidity environment, available as ingots, blanks, polished, and coated
Larger spectral and temperature acceptance, increased angular tolerance compared to bbo crystal
The nonlinear coefficient deff is almost twice that of the KDP crystal
Moderate birefringence and small walk-off angle
Large sizes available, fast deliveries
High efficiencies maintained for high power input
Ideal for: FHOG and FIHG for Nd: lasers, SHG and THG for Ti:Sapphire and Alexandrite lasers, UV laser optics, micro-photolithography
Specifications: | |||
Width Tolerance | ±0.1mm | Height Tolerance | ±0.1mm |
Length Tolerance | +0.5mm/-0.1mm (L≥2.5mm) | Clear Aperture (Central of Diameter) | 90% |
+0.1mm/-0.1mm (L<2.5mm) | |||
Surface Flatness (@633nm) | ≤lambda/6 | Parallelism | 20” |
Surface Quality (MIL-PRF-13830B) | 10/5 S/D | Damage Threshold | >150 MW/cm^2 @266nm, 10ns, 10Hz (With AR Coating) |
>300 MW/cm^2 @532nm, 10ns, 10Hz (With AR Coating) | |||
Perpendicularity | ≦15’ | Angle Tolerance | Δθ≦0.25°, ΔФ≦0.25 ° |
Chamfer | ≦0.2 mm × 45 ° | Chip | ≦0.1 mm |
Basic Properties: | |||
Chemical and Structural Properties | |||
Chemical Formula | CsLiB6O10 | Crystal Structure | Tetragonal, Space group Ⅰ 42m |
Lattice Constants | a = b = 10.494 Å, c = 8.939 Å | Symmetry | z=4 |
Melting Point | Around 844.5° | Density | 2.461 g/cm3 |
Molecular Mass | 364.706 | ||
Optical and Nonlinear Optical Properties | |||
Transmission Wavelength Range | 180-2750nm | Walk-off Angle | 1.78 °at 1064nm; |
1.83 °at 532nm; | |||
0.98 °at 488nm | |||
Effective NLO Coefficients | 1.01 pm/V at 532nm; | NLO Coefficients | deff (Ⅰ) = d36 sinθmsin(2 Ф) ; |
1.16 pm/V at 488nm; | deff (Ⅱ) = d36 sin(2θm) sin(2 Ф) | ||
0.95 pm/V at 1064nm | |||
Angle Acceptance | 1.02 mrad·cm at 1064 nm; | Temperature Acceptance | 9.4℃·cm |
0.49 mrad·cm at 532 nm; | |||
0.84 mrad·cm at 488 nm | |||
Spectral Acceptance | 7.03 nm·cm at 1064 nm; | Sellmeier Equations (λ in μm) | CLBO at 20 ℃ |
0.13 nm·cm at 532 nm; | no2 = 2.2104 + 0.01018 / (λ2 - 0.01424) - 0.01258 λ2 | ||
0.09 nm·cm at 488 nm | ne2 = 2.0588 + 0.00838 / (λ2 - 0.01363) - 0.00607 λ2 | ||
(0.1914 µm<λ<2.09 µm) | |||
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