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CLBO Crystal
CLBO is featured by:
• Cut-off wavelength up to 180nm;
• Maximum FOHG and FHG conversion efficiencies of Nd:YAG laser;
• Relatively large effective NLO coefficient (about two times that of KDP);
• Wide acceptance angle and small walk-off angle;
• The VUV output at 193nm is available by phase matching;
• No saturation for high-power generation;
• Short grow cycle and large size.
CASTECH offers:
• Strict quality control;
• Cut angle and dimensions upon request;
• AR-coating,sealed-housing and repolishing services;
• Fast delivery (10 working days for polished only,15 working days for AR-coated).
Table1. Nonlinear Optical properties of CLBO and BBO Crystal
Table 2. Structural Properties of CLBO
Crystal Structure |
Tetragonal,Space group |
Lattice Constant |
a=b=10.494Å,c=8.939Å |
Symmetry |
Z=4 |
Melting Point |
About 844.5℃ |
Table 3. Optical and Nonlinear Optical Properties of CLBO
Transparency Range |
180-2750nm |
Effective NLO Coefficient |
1.01pm/V at 532nm,1.16pm/V at 488nm,0.95pm/V at 1064nm |
Damage Threshold |
26GW/cm2 |
Walk-off Angle |
1.78°at 1064nm,1.83°at 532nm,0.98°at 488nm |
Angle Acceptance (mrad·cm) |
1.02 at 1064nm,0.49 at 532nm,0.84 at 488nm |
Spectral Acceptance (nm·cm) |
7.03 at 1064nm,0.13 at 532nm,0.09 at 488nm |
Temperature Acceptance (℃·cm) |
9.4 |
NLO Coefficients |
deff(Ⅰ)=d36sinθmsin(2 φ) deff(Ⅱ)=d36sin(2θm)cos(2 φ) |
Sellmeier Equations (λ in μm) |
CLBO at 20℃ no2=2.2104+0.01018/(λ2-0.01424)-0.01258λ2 ne2=2.0588+0.00838/(λ2-0.01363)-0.00607λ2 (0.1914< λ <2.09 μm) |
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