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CLBO Crystal

Cesium Lithium Borate (CsLiB6O10CLBO) is a newly developed crystal with excellent UV nonlinear featureand widely used for semiconductor inspectionmicro processingbio-medicalUV-LIDARetc. Compared to BBOit has larger spectral and temperature acceptancelarger angle tolerance and smaller walk-off angle (see Table 1). These advantages make CLBO obtain larger SHG conversion efficiencies than BBO. Moreoverit is suitable for FOHG and FHG of high-power Nd:YAG laser.


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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-coatingsealed-housing and repolishing services;
       ?   Fast delivery (10 working days for polished only15 working days for AR-coated).


 

Table1. Nonlinear Optical properties of CLBO and BBO Crystal

Wavelength(nm)

Crystal

Phase
Matching 

Angle()

Deff

(pm/V)

Angle Tolerance

(mradcm)

Walk-off

Angle ()

Spectral  Acceptance

(nmcm)

Temperature  Acceptance

(桤cm)

532+532=266

CLBO

61.7

0.84

0.49

1.83

0.13

8.3

BBO

47.7

1.32

0.17

4.80

0.07

4.5

1064+266=213

CLBO

68.4

0.87

0.42

1.69

0.16

4.6

BBO

51.1

1.26

0.11

5.34

0.08

3.1


Table 2. Structural Properties of CLBO

Crystal Structure

TetragonalSpace group

Lattice Constant

a=b=10.494?c=8.939?

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 532nm1.16pm/V at 488nm0.95pm/V at 1064nm

Damage Threshold

26GW/cm2

Walk-off Angle

1.78at 1064nm1.83at 532nm0.98at 488nm

Angle Acceptance (mradcm)

1.02 at 1064nm0.49 at 532nm0.84 at 488nm

Spectral  Acceptance (nmcm)

7.03 at 1064nm0.13 at 532nm0.09 at 488nm

Temperature  Acceptance (桤cm)

9.4

NLO Coefficients

deff()=d36sinmsin(2 )

deff()=d36sin(2m)cos(2 )

Sellmeier Equations ( in m)

CLBO at 20

no2=2.2104+0.01018/2-0.01424-0.012582

ne2=2.0588+0.00838/2-0.01363-0.006072

(0.1914 2.09 m)


 

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