Glan Laser Polarizer

Optics >>> Polarizer >>> Glan Laser Polarizer

Glan Laser prism polarizer is made of two same birefringent material prisms that are assembled with an air space. This polarizer is a modification of Glan Taylor polarizer and is designed to have less reflection loss at the prism junction. Glan Laser Polarzier has two escape windows that allow the rejected beam to escape out of the polarizer.  This makes it more desirable for high energy lasers. The surface quality of these faces is relatively poor as compared to that of entrance and exit faces. No scratch dig surface quality specifications are assigned to these faces. The polarized field F1 and F2 of these is shown in the plot below.

Angular Field versus Wavelength
 

a-BBO, 200-300nm

a
-BBO, 300-700nm


a
-BBO, 700-3000nm


Calcite, 350-2300nm

YVO4, 500-4000nm

Features
 
  • Air-spaced
  • Close to Brewster's Angle Cutting.
  • High Polarization Purity.
  • Short Length.
  • Suitable for low to medium power application where the rejected beam is not required.

 
Main Specifications
Material: a-BBO, Calcite or YVO4
Wavelength Range: a-BBO: 200-3500 nm, Calcite: 350-2300 nm, YVO4: 400-4000 nm
Extinction Ratio: Calcite:<5x10-5; a-BBO:<5x10-6; YVO4:<5x10-6
Parallelism: <1 arc Min
Surface Quality: 20-10
Beam Deviation: < 3 arc minutes
Wavefornt Distortion: l/4@633nm
Damage Threshold: >500 MW/cm2
Coating: Single MgF2
Mount: Black Anodized Aluminum

Standard Products
 
1. a-BBO Glan Laser Polarizer
Part No.
Wavelength Rang(nm)
Extinction Ratio
Angular Field()
C.A.
fa (mm)
O.D.
f
d (mm)
L0.1
(mm)
GLP-6206
200-300
<5x10-6
>6.0
6.0
15.0
29.0
GLP-6208
8.0
25.4
31.0
GLP-6210
10.0
25.4
31.0
GLP-6215
15.0
30.0
38.6
GLP-6220
20.0
38.0
48.9
GLP-6306
300-700
<5x10-6
>6.0
6.0
15.0
25
GLP-6308
8.0
25.4
25
GLP-6310
10.0
25.4
26.0
GLP6315
15.0
30.0
33.4
GLP-6320
20.0
38.0
43.6
GLP-6706
700-3000
<5x10-6
>6.0
6.0
15.0
23.0
GLP-6708
8.0
25.4
24.7
GLP-6710
10.0
25.4
25.9
GLP-6715
15.0
30.0
33.0
GLP-6720
20.0
38.0
43.6

  
2. Calcite Glan Laser Polarizer
Part No.
Wavelength Rang(nm)
Extinction Ratio
Angular Field()
C.A.
f
a (mm)
O.D.
fd (mm)
L0.1
(mm)
GLP-7006
350-2300
<5x10-6
>7.7
6.0
15.0
21.0
GLP-7008
8.0
25.4
24.5
GLP-7010
10.0
25.4
26.2
GLP-7015
15.0
30.0
33.3
GLP-7020
20.0
38.0
42.3

 
3. YVO4 Glan Laser Polarizer
Part No.
Wavelength Rang(nm)
Extinction Ratio
Angular Field()
C.A.
f
a (mm)
O.D.
f
d (mm)
L0.1
(mm)
GLP-8006
500-4000
<5x10-6
>6.5
6.0
15.0
18.0
GLP-8008
8.0
25.4
20.0
GLP-8010
10.0
25.4
23.0
GLP-8015
15.0
30.0
29.0
GLP-8020
20.0
38.0
38.0

  

 

 

Toll Free(U.S.) 888.309.5061 Fax 650.618.2057
   

Copyright 2010 Red Optronics.  All Rights Reserved.