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Glan Thompson Polarizer Beamsplitter Cube

Glan Thompson Polarizer Beamsplitter Cube is made of two Calcite prisms or two a-BBO prisms cemented together. It has high extinction ratio below 5×10-5 is obtained. The Calcite type can be used in the range of 350-2300nm, and a-BBO crystal usable in the range of 220-900nm. It can separate the nature light for O polarized light and E polarized light, and the separate angle is 45°. Since there are two ports, the prism can also be used by replacing the input and output direction.

The polarizers have the widest field angle of any design.The standard form of this polarizer with 2.5:1 length to aperture ratio has a full acceptance cone angle of more than 15 °@589nm, symmetric about the input axis, while the long form with 3:1 ratio has a field angle>26°. The polarized field F1 and F2 of all these is shown in the plot below.
polarizer PGT wavelength

  • Specifications

    Material

    α-BBO, Calcite

    Wavelength Range

    α-BBO：220-900nm，Calcite：350-2300nm

    Extinction Ratio

    α-BBO：<5*10-6，Calcite：<5*10-5

    Surface Quality

    20/10 Scratch/Dig

    Beam Deviation

    <3 arc minutes

    Wavefront Distortion

    <λ/4@633nm

    Separate Angle

    45°±0.5°

    Damage Threshold

    >200MW/cm2

    Coating

    Single MgF2

    Mount

    Black Anodized Aluminum

    GLAN THOMPSON POLARIZERS

    Standard Products

    α-BBO Glan Thompson Polarizer Beamsplitter Cube Special for DUV,Visible and NIR(220-900nm)

    Part No.

    L(Material)/CA

    Extinction Ration

    Angular Field（°）

    C.A.φa(mm)

    O.D.φd(mm)

    L+/-0.1(mm)

    Unit Price

    PGB6006

    1.6

    <5*10-6

    >15

    6.0

    25.4

    15

    $538

    PGB6008

    1.6

    <5*10-6

    >15

    8.0

    30.0

    18

    $598

    PGB6010

    1.6

    <5*10-6

    >15

    10.0

    38.1

    22

    $688

    PGB6012

    1.6

    <5*10-6

    >15

    12.7

    38.1

    26

    $838

    PGB6015

    1.6

    <5*10-6

    >15

    15.0

    38.1

    30

    $1068

    Calcite Glan Thompson Polarizer Beamsplitter Cube (350-2300nm) 

    Part No.

    L(Material)/CA

    Extinction Ratio

    Angular Field（°）

    C.A.φa(mm)

    O.D.φd(mm)

    L+/-0.1(mm)

    Unit Price

    PGB7006

    2.5

    <5*10-5

    14-16

    6.0

    25.4

    20.0

    $388

    PGB7008

    2.5

    <5*10-5

    14-16

    8.0

    30.0

    25.0

    $458

    PGB7010

    2.5

    <5*10-5

    14-16

    10.0

    38.1

    30.0

    $568

    PGB7012

    2.5

    <5*10-5

    14-16

    12.7

    50.8

    37.0

    $658

    PGB7015

    2.5

    <5*10-5

    14-16

    15.0

    50.8

    43.0

    $788


  • Specifications

    Material

    α-BBO, Calcite

    Wavelength Range

    α-BBO：220-900nm，Calcite：350-2300nm

    Extinction Ratio

    α-BBO：<5*10-6，Calcite：<5*10-5

    Surface Quality

    20/10 Scratch/Dig

    Beam Deviation

    <3 arc minutes

    Wavefront Distortion

    <λ/4@633nm

    Separate Angle

    45°±0.5°

    Damage Threshold

    >200MW/cm2

    Coating

    Single MgF2

    Mount

    Black Anodized Aluminum

    GLAN THOMPSON POLARIZERS

    Standard Products

    α-BBO Glan Thompson Polarizer Beamsplitter Cube Special for DUV,Visible and NIR(220-900nm)

    Part No.

    L(Material)/CA

    Extinction Ration

    Angular Field（°）

    C.A.φa(mm)

    O.D.φd(mm)

    L+/-0.1(mm)

    Unit Price

    PGB6006

    1.6

    <5*10-6

    >15

    6.0

    25.4

    15

    $538

    PGB6008

    1.6

    <5*10-6

    >15

    8.0

    30.0

    18

    $598

    PGB6010

    1.6

    <5*10-6

    >15

    10.0

    38.1

    22

    $688

    PGB6012

    1.6

    <5*10-6

    >15

    12.7

    38.1

    26

    $838

    PGB6015

    1.6

    <5*10-6

    >15

    15.0

    38.1

    30

    $1068

    Calcite Glan Thompson Polarizer Beamsplitter Cube (350-2300nm) 

    Part No.

    L(Material)/CA

    Extinction Ratio

    Angular Field（°）

    C.A.φa(mm)

    O.D.φd(mm)

    L+/-0.1(mm)

    Unit Price

    PGB7006

    2.5

    <5*10-5

    14-16

    6.0

    25.4

    20.0

    $388

    PGB7008

    2.5

    <5*10-5

    14-16

    8.0

    30.0

    25.0

    $458

    PGB7010

    2.5

    <5*10-5

    14-16

    10.0

    38.1

    30.0

    $568

    PGB7012

    2.5

    <5*10-5

    14-16

    12.7

    50.8

    37.0

    $658

    PGB7015

    2.5

    <5*10-5

    14-16

    15.0

    50.8

    43.0

    $788


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