CLBO Crystal
CLBO-Cesium Lithium Borate
  • Cut-off wavelength up to 180nm.

  • Relatively large effective SHG coefficient (about two times that of KDP).

  • The VUV output at 193 nm is available by phase matching.

  • Maximum FOHG and FIHG conversion efficiencies of Nd doped laser.

  • Wide acceptance angle and small walk-off angle.

  • No saturation for high-power generation.

  • Short growth cycle and large size under the Lower Viscosity Growth Technology.

  • Noncritically phase-matched second-harmonic generation in cesium lithium borate

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General Product
Description
Specification
Part No.
Material
Size
Theta
Phi
Coating
Application
Mounted
Delivery
Price
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Part No. Material Size Theta Phi Coating Application Mounted Delivery Price Add to CART
CLBO Crystals CY01 Cesium Lithium Borate 4x4x8 mm 61.5° 45° AR/AR@532+266nm Type 1, SHG@532nm With Ø1" Mounts 2 weeks $1000
CLBO Crystals CY02 Cesium Lithium Borate 4x4x10 mm 61.5° 45° AR/AR@532+266nm Type 1, SHG@532nm With Ø1" Mounts 2 weeks $1200
CLBO Crystals CY03 Cesium Lithium Borate 5x5x8 mm 61.5° 45° AR/AR@532+266nm Type 1, SHG@532nm With Ø1" Mounts 2 weeks $1300
CLBO Crystals CY04 Cesium Lithium Borate 5x5x10 mm 61.5° 45° AR/AR@532+266nm Type 1, SHG@532nm With Ø1" Mounts 2 weeks $1400

Cesium Lithium Borate CsLiB6O10 (CLBO) is a nonlinear crystal perfect for harmonic generation in the UV range with a transmission cut-off edge reaching 180 nm. Compared with common BBO nonlinear optical material, CLBO crystals feature larger spectral and temperature acceptance, better angle tolerance, and a smaller walk-off angle. CLBO Crystal is a good choice for Second-harmonic generation (SHG), and it is suitable for frequency quadrupling (FHG) of high-power Nd:YAG laser systems. CLBO shows no saturation for high-power generation due to the absence of two-photon absorption typically observed in BBO and KDP crystals. 


Nonlinear Optical Properties of CLBO and BBO Crystal

CLBO CrystalBBO Crystal
532.0(o)+  532.0(o)=  266.0(e)532.0(o)+  532.0(o)=  266.0(e)
Walkoff [mrad] = 0.00   0.00  32.96Walkoff [mrad] = 0.00   0.00  85.30
Phase velocities = c/  1.498  1.498  1.498Phase velocities = c/  1.674  1.674  1.674
Group velocities = c/  1.527  1.527  1.626Group velocities = c/  1.722  1.722  1.894
GrpDelDisp(fs^2/mm) =  77.7   77.7  232.2GrpDelDisp(fs^2/mm) = 136.0  136.0  429.3
At theta = 61.5 deg.At theta  =   47.7 deg.
deff = 7.88E-1 pm/Vdeff =  1.75E0 pm/V
S_o x L^2 =  5.16E7   WattS_o x L^2 =  1.45E7 Watt
Crystal ang. tol. = 0.54 mrad°mCrystal ang. tol. = 0.19 mrad°m
Temperature range = 6.80 K°mTemperature range  =  6.02 K°m
Mix accpt ang = 1.08  1.08 mrad°mMix accpt ang = 0.37  0.37 mrad°m
Mix accpt bw  = 10.14  10.14 cm-1°mMix accpt bw  = 5.80  5.80 cm-1°m


Chemical and Structural Properties of CLBO Crystal

Crystal StructureTetragonal, Space group Ⅰ
Lattice Parametera = b = 10.494 Å, c = 8.939 Å
SymmetryZ = 4
Melting PointAbout 844.5 ℃


Optical and Nonlinear Optical Properties of CLBO Crystal

Transparency 

Range

180-2750 nm

Angle

 Acceptance

1.02 mrad·cm at 1064nm
0.49 mrad·cm at 532nm
0.84 mrad·cm at 488nm

Temperature 

Acceptance

9.4℃·cm

Spectral 

Acceptance

7.03 nm·cm at 1064 nm
0.13 nm·cm at 532 nm
0.09 nm·cm at 488 nm
Walk-off Angle1.78 °at 1064 nm
1.83 °at 532 nm
0.98 °at 488 nm
NLO Coefficients1.01 pm/V at 532 nm
1.16 pm/V at 488 nm
0.95 pm/V at 1064 nm
NLO Coefficientsdeff (Ⅰ) = d36 sinθm sin(2Ф)    
deff (Ⅱ) = d36 sin(2θm) sin(2Ф)    

Sellmeier Equation

(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 µm<λ<2.09 µm)
Dimension Tolerance+0/-0.1mm
Thickness Tolerance±0.15mm
Clear Aperture>90%
Flatness< λ/6 @633 nm
Surface Quality10/5 to MIL-PRF-13830B
Parallelism<20 arc sec
Perpendicularity< 15 arc min
Angle ToleranceΔθ < 0.25 °, ΔФ < 0.25 °
Chamfer<0.2 mm × 45 °
Chip<0.1mm
Damage Threshold
10ns, 10 Hz (AR-Coated)
> 300MW/cm2 @532nm
> 150 MW/cm2 @266nm
Quality Warranty PeriodOne year under proper use
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