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Glan Thompson Polarizer > Glan Thompson Polarizer

Introduction

Thompson Polarizer Glan Thompson Polarizer is made of two α-BBO or calcite prisms cemented together. It has a wavelength from 200nm to 2300nm. α-BBO polarizer can be used from about 200nm to 1100nm and calcite polarizer can be used from 350nm to 2300nm. This type polarizer has higher extinction ratio than air spaced polarizer. And it has the widest field angle of any design. For example α-BBO Glan Thompson Polarizer has an angular field lager than 15 degree.
 
 

Standard Specifications

  
 

Items

Specification

Material

α-BBO, Calcite

Wavelength Range

α-BBO: 200-3500nm; Calcite: 350-2300nm

Extinction Ratio

α-BBO:< 5×10 -6; Calcite:< 5×10 -5

Dimension Tolerance

±0.1mm

Surface Quality

scratch and dig 20-10

Beam Deviation:

< 3 arc minutes

Wavefront Distortion

<λ/4 @632.8 nm

Damage Threshold

＞200MW/cm2

Coating

Single Layer MgF2

Mount

Black Anodized Aluminum

 

  
   
 

1. α-BBO Glan Thompson Polarizer

Part NO.

L/CA

Extinction Ratio

Angular
Field(°)

C.A.    φa

OD    φd

L

GMP6006

1.6

< 5×10 -6

> 15

5.0

15.0

14.0

GMP6008

7.0

25.4

17.0

GMP6010

9.0

25.4

21.0

GMP6015

13.5

30.0

31.0

GMP6020

18.0

38.0

40.0

2. Calcite Glan Thompson Polarizer

Part NO.

L/CA

Extinction Ratio

Angular
Field(°)

C.A.    φa

OD    φd

L

GMP7106

2.5

< 5×10 -6

14-16

5.0

15.0

18.0

GMP7108

7.0

25.4

23.0

GMP7110

9.0

25.4

28.0

GMP7112

11.4

25.4

35.0

GMP7115

13.5

30.0

41.0

GMP7206

3.0

< 5×10 -6

25-28

5.0

15.0

21.0

GMP7208

7.0

25.4

27.0

GMP7210

9.0

25.4

33.0

GMP7012

11.4

30.0

41.0

GMP7215

13.5

38.0

48.0

 

  

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