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TSAG Crystal

TSAG is a key isolator material for next generation fiber laser. As an ideal magneto-optic crystal in visible and infrared regionsTSAG has the advantages of high Verdet constantexcellent thermal and mechanical properties.


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Main Features of TSAG

     ?   Large Verdet constant48radT-1m-1 at 1064nmabout 20% higher than that of TGG;

     ?   Low absorption3000ppm/cm at 1064nmabout 30% less than that of TGG;

     ?   High power compliant;

     ?   Low thermally-induced birefringence;

     ?   Making the isolator small.

 

Main Applications

     ?   Faraday Rotator;

     ?   Optical Isolator.

 

Table1. Properties

Transmittance Range(bulk/uncoated)

400-1600nm

Crystal Structure

CubicSpace group Ia3d

Chemical Formula

Tb3Sc2Al3O12            

Lattice Parameter        

a=12.3?

Growth Method

Czochralski

Density

5.91g/cm3

Melting Point

197010

 

CASTECH offers

Orientation

15

Wavefront Distortion

/8

Extinction Ratio

30dB

Diameter Tolerance                   

+0.00mm/-0.05mm                        

Length Tolerance

+0.2mm/-0.2mm

Chamfer

0.1mm @ 45

Flatness

/10 at 633nm

Parallelism

3

Perpendicularity

5

Surface Quality

10/5

AR coating

0.3% @ 1064nm

 

 

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