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A polarizer is an important optical component that is widely used in optics to produce a state of linear polarization. Lasertec provide following polarizers with some materials,a-BBO, Calcite and YVO4 and glass suitable for the widest spectrum and high polarization purity applications.
Polarizer

Transmission; Interface

 Damaged
Threshold		  Material  Wavelength
(nm)		 Extinction
Ratio		 Angular
Field(°)
Medium;
Air-space
Low to Medium;
200 MW/cm2;
(without escapewindows)
Calcite
350-2300
<5x10-5
>7.7
α - BBO
190-3500
<5x10-6
>6.0
YVO4
500-5000
<5x10-6
>6.5
Medium;
Air-space
High power;
500 MW/cm2;
(with escape windows)
Calcite
350-2300
<5x10-5
>7.7
α - BBO
190-3500
<5x10-6
>6.0
YVO4
500-5000
<5x10-6
>6.5
High;
Air-space
High power;
500 MW/cm2;
(with escape windows)
Calcite
350-2300
<5x10-5
>7.7
YVO4
500-5000
<5x10-6
>6.5
Medium;
Cemented
Low power;
100 MW/cm2
Calcite
350-2300
<5x10-5
14-16
Calcite
350-2300
<5x10-5
25-28
α - BBO
220-900
<5x10-6
>15
Medium;
Cemented
Low or Medium;
150 MW/cm2
Calcite
350-2300
<5x10-5
14-16
High;
Cemented
low power;
100 MW/cm2
Calcite
350-2300
<5x10-5
16.7-22.5
α - BBO
190-3500
<5x10-6
15-27
YVO4
500-5000
<5x10-6
19.6-23.3
High;
Optical Contact
Medium power;
200 MW/cm2
Quartz
200-2300
<5x10-5
2-3
MgF2
110-8500
<5x10-4
2-3
High;
Cemented
low power;
100 MW/cm2
α - BBO
190-3500
<5x10-6
8-14
YVO4
500-5000
<5x10-6
1-2
High;
Optical Contact
Medium power;
200 MW/cm2
Quartz
200-2300
<5x10-5
1-2
MgF2
110-8500
<5x10-4
1-2
High;
Cemented
low power;
200 MW/cm2
BK7
single wavelength
<1x10-3
5
SF5
broadband wavelength
<5x10-3
5
High;
Cemented
High power;
20J/cm2 20ns
10Hz@ 1064nm
BK7
single >500nm
<1x10-3
5
Fused Silica
single<500nm
<5x10-3
5
High;
Cemented
low power;
200 MW/cm2
BK7
single wavelength
<1x10-3
5
SF5
broadband wavelength
<5x10-3
5

Polarizer Specifications

Surface Quality: 20-10 scratch and dig
Wavefront Distortion: < l/4 @632.8nm
Dimensions Tolerance: +/- 0.1 mm
Beam Deviation: < 3 arc minutes
Transmission >90% for single wavelengh
Coatings: Single layer MgF2 on input/output surfaces
( Multilayer AR coating available upon request )
Housing: Black anodized aluminum
 

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:Email: sales@lcoptical.com

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