Glan Thompson Polarizer

Glan 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.

Features

Cemented
Wide Acceptance Angle Field
Suitable for Low Power Application
 

 

Capability

Common 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 S/D 20-10
Beam Deviation: < 3 arc minutes
Wavefront Distortion <Lambda/4 @632.8 nm
Damage Threshold >200MW/cm2
Coating Single Layer MgF2
Mount Black Anodized Aluminum

α-BBO Glan Thompson Polarizer

Part Number 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

Calcite Glan Thompson Polarizer

Part Number L/CA Extinction Ratio Angular
Field(°)
C.A.  (φa) OD    (φd) L
GMP7106 2.5 < 5×10 -5 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