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Glan Laser Polarizer

Glan Laser PolarizerThe Glan-Laser Polarizer is a Glan-Taylor Polarizer that is specifically designed to deal with high-energy laser light. The polarizer is assembled of two same birefringent crystal prisms with an air space(no glue). It has two polished side surfaces to enable the rejected beams to escape, thus avoiding damage due to excessive heating of the prisms. The provision of two escape windows allows use of this type of polarizer in both directions, e.g. intra cavity gain switching.

 

Glan-Laser Polarizer Specifications:

 

 Material

 a-BBO, Calcite, YVO4

 Wavelength Range

 a-BBO: 200-3500nm; Calcite: 350-2300nm; YVO4: 500-4000nm

 Extinction Ratio

 Calcite:<5x10 -5 ; a -BBO:<5x10 -6 ; YVO4:<5x10 -6

 Surface Quality

 20/10 scratch/dig

 Beam Deviation

 < 3 arc minutes

 Wavefront Distortion

 λ/4@632.8nm

 Damage Threshold

 >500MW/cm2

 Coating

 Single Layer MgF2

 Mount

 Black Anodized Aluminium

 

Standard Products:


1. a-BBO Glan Laser Polarizer

 

Part No.

Aperture φa (mm)

O.D.

φd (mm)

L (mm)

Wavelength Range

Extinction Ratio

Angular Field

GLB06A

6.0

15.0

29.0

200-270nm

<5x10-6

>6.0°

GLB08A

8.0

25.4

31.0

GLB10A

10.0

25.4

31.0

GLB12A

12.7

25.4

38.6

GLB15A

15.0

30.0

38.6

GLB20A

20.0

38.0

48.9

GLB06B

6.0

15.0

25.0

300-700nm

<5x10-6

>6.0°

GLB08B

8.0

25.4

25.0

GLB10B

10.0

25.4

26.0

GLB12B

12.7

25.4

27.0

GLB15B

15.0

30.0

33.4

GLB20B

20.0

38.0

43.6

GLB06C

6.0

15.0

23.0

700-3000nm

<5x10-6

>6.0°

GLB08C

8.0

25.4

24.7

GLB10C

10.0

25.4

25.9

GLB12C

12.7

25.4

27.0

GLB15C

15.0

30.0

33.4

GLB20C

20.0

38.0

43.6

 

2. Calcite Glan Laser Polarizer

 

Part No.

Aperture φa (mm)

O.D.

φd (mm)

L (mm)

Wavelength Range

Extinction Ratio

Angular Field

GLC06

6.0

15.0

21.0

350-2300nm

<5x10-5

>7.7°

GLC08

8.0

25.4

24.5

GLC10

10.0

25.4

26.2

GLC12

12.7

25.4

27.5

GLC15

15.0

30.0

33.3

GLC20

20.0

38.0

42.3

 

3. YVO4 Glan Laser Polarizer

 

Part No.

Aperture φa (mm)

O.D.

φd (mm)

L (mm)

Wavelength Range

Extinction Ratio

Angular Field

GLY06

6.0

15.0

21.0

500-4000nm

<5x10-6

>6.5°

GLY08

8.0

25.4

20.0

GLY10

10.0

25.4

23.0

GLY12

12.7

25.4

25.0

GLY15

15.0

30.0

26.0

GLY20

20.0

38.0

29.0

  

* A wide variety of custom design Glan Laser Polarizers  and Mounts are available upon request.


Birefringent Crystal Material Data


 

   a-BBO CrystalYVO4 CrystalCalcite CrystalQuartz CrystalMgF2 Crystal