Polar Beam Technologies Inc.

Main Specifications:

Wavelength range and Extinction Ratio:

Calcite: 350-2300nm ER<5x10E^-6

YVO₄: 400-4000nm ER<5x10E^-6
Alpha BBO: 190-3500nm ER<5x10E^-6

Beam Deviation:

<3 arc min

Dimension tolerance:

±0.1mm

Surface quality:

20-10 Scratch and dig

Transmission Wavefront Distortion:

Alpha BBO and YVO₄: < lambda/4 @632.8nm

Calcite: < lambda/2 @632.8nm

Escape Window:

Double

Coating:

Single layer MgF₂

Damage Threshold:

>500MW/cm²

Housing:

Black anodized aluminum

Material Wavelength Rang(nm) Extinction Ratio Angular Field(°) Clear Aperture Φa (mm)
Outside Diameter Φd (mm)
L±0.1(mm)

a-BBO 200-300 <5x10 -6 >6.0 6 15 15

8 25.4 18.5

10 25.4 19

15 30 23

20 38 29

300-700 <5x10 -6 >6.0 6 15 15

8 25.4 18.5

10 25.4 19

15 30 23

20 38 29

700-3000 <5x10 -6 >6.0 6 15 15

8 25.4 18.5

10 25.4 19

15 30 23

20 38 29

Calcite 350-2300 <5x10 -6 >7.7 6 15 15

8 25.4 18.5

10 25.4 19

15 30 23

20 38 29

YVO4 500-4000 <5x10 -6 >6.5 6 15 12

8 25.4 15

10 25.4 18.5

15 30 20

20 38 25