United Photonics Technology
overview
Glan Taylor Polarizer
Glan Laser Polarizers
High Transmission Glan Laser Polarizers
Glan Thompson Polarizers
Broadband Glan Thompson Polarizer( 200-3300nm)
Glan Thompson Polarizing Beamsplitter Cubes
Wollaston Polarizers
Rochon Polarizers
Polarization Beam Displacers
Polarization Beamsplitter
C-Polarizer
overview
A polarizer is an important optical component that is widely used in optics to produce a state of linear polarization. UPT provides polarizers with four materials, a -BBO, Calcite ,YVO 4 and Quartz , making them suitable for the widest spectrum and high polarization purity application.
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POLARIZER
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MATERIAL
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ILLUSTRATION
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PROPERTIES AND APPLICATIONS
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Glan Taylor Polarizer
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a-BBO(190-3500nm)
Calcite(350-2300nm)
YVO4(500-4000nm)
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² Air-spaced
² Close to Brewster's Angle Cutting
² Low L/A=0.8
² For medium power application
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Glan Laser Polarizer
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a-BBO(200-3500nm)
Calcite(350-2300nm)
YVO4(500-4000nm)
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² Air-spaced.
² Close to Brewster's angle Cutting
² Mounted with escape window
² Suitable for high power applications
² L/A=1.5
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High Transmission Glan Laser Polarizer
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YVO4(500-4000nm)
Calcite(350-2300nm)
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² Air Spaced
² Brewster's Angle Cutting
² Mounted with escape window
² Suitable for high power and high transmission application
² Brewster Angle input
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Glan Thompson Polarizer
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a-BBO(220-900nm)
Calcite(350-2300nm)
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² Cemented
² Suitable for low power applications
² Wide acceptance angle
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Broadband Glan Thompson Polarizer( 200-3300nm)
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a-BBO(220-3300nm)
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² Cemented
² Suitable for low power online_orderings
² Wide acceptance angle
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Glan Thompson Polarizing Beamsplitter Cube
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Calcite
(350-2300nm)
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² Cemented
² Suitable for low power application
² Wide acceptance angle field
² Split o-ray&e-ray at 45deg
² Only o-ray is deviated
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Wollaston Polarizer
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a-BBO(200-3500nm)
Calcite(350-2300nm)
YVO4(500-4000nm)
Quartz(200-2300nm)
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² Cemented
² Separate ordinary and extraordinary beams at certain angle
² Suitable for low power application and where the large deviation is required
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Rochon Polarizer
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a-BBO(200-3500nm)
YVO4(500-4000nm)
Quartz(200-2300nm)
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² a-BBO is used to guarantee a wide transmission range
² Especially suitable for UV application
² Split the ordinary and extraordinary ray, but only ordinary beam is deviated
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Polarization Beam Displacers
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YVO4 (488 nm- 3400 nm)
Calcite
(350-2300nm)
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² Cemented
² Suitable for low power application
² Separate an Input into Two Orthogonally Polarized Beams
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Polarization Cube Beamsplitter
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BK7 Grade A Optical Glass Or Fused silica, SF11
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² Split the ordinary and extraordinary ray. The ordinary beam is deviated 90°Refer to chapter "Beamsplitter" For detailed information.
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Calcite: T% vs Wavelength
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a -BBO: T% vs Wavelength
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YVO4: T% vs Wavelength
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Quartz: T% vs Wavelength
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Glan Laser Polarizers
Glan Laser prism polarizer is made of two same birefringent material prisms that are assembled with an air space. The polarizer is a modification of the Glan Taylor type and is designed to have less reflection loss at the prism junction. The polarizer with two escape windows allow the rejected beam to escape out of the polarizer, which 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 vs Wavelength
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a -BBO, 200-300nm
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a -BBO, 300-700nm
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a -BBO, 700-3000nm
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Calcite, 350-2300nm
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YVO4, 500-4000nm
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Features:
- Air-spaced
- Close to Brewster's Angle Cutting
- High Polarization Purity
- Short Length
- Suitable for low to medium power online_ordering where the rejected beam is not required
Specifications:
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Material:
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a -BBO, Calcite or YVO4
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Wavelength Range:
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a -BBO: 200-3500 nm, Calcite: 350-2300 nm, YVO4: 400-5000 nm
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Extinction Ratio:
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Calcite:<5x10 -5 ; a -BBO:<5x10 -6 ; YVO4:<5x10 -6
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Parallelism:
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<1 arc Min
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Surface Quality:
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20-10
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Beam Deviation:
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< 3 arc minutes
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Wavefront Distortion:
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l/4@633nm
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Damage Threshold:
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>500 MW/cm 2
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Coating:
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Single layer MgF2
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Mount:
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Black Anodized Aluminium
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Standard Products
1.a-BBO Glan Laser Polarizer
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Part No.
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Wavelength Rang(nm)
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Extinction Ratio
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Angular Field(°)
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C.A. fa(mm)
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O.D. fd(mm)
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L ±0.1(mm)
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GLP5206
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200-270
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<5x10-6
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>6.0°
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6.0
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15.0
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29.0
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GLP5208
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8.0
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25.4
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31.0
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GLP5210
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10.0
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25.4
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31.0
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GLP5215
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15.0
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30.0
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38.6
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GLP5220
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20.0
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38.0
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48.9
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GLP5306
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300-700
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<5x10-6
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>6.0°
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6.0
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15.0
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25.0
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GLP5308
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8.0
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25.4
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25.0
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GLP5310
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10.0
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25.4
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26.0
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GLP5315
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15.0
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30.0
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33.4
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GLP5320
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20.0
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38.0
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43.6
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GLP5706
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700-3000
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<5x10-6
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>6.0°
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6.0
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15.0
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23.0
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GLP5708
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8.0
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25.4
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24.7
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GLP5710
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10.0
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25.4
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25.9
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GLP5715
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15.0
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30.0
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33.0
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GLP5720
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20.0
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38.0
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43.6
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2. Calcite Glan Laser Polarizer
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Part No.
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Wavelength Rang(nm)
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Extinction Ratio
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Angular Field(°)
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C.A. fa(mm)
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O.D. fd(mm)
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L ±0.1(mm)
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GLP6006
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350-2300
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<5x10-5
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>7.7°
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6.0
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15.0
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21.0
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GLP6008
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8.0
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25.4
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24.5
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GLP6010
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10.0
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25.4
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26.2
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GLP6015
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15.0
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30.0
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33.3
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GLP6020
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20.0
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38.0
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42.3
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3. YVO4 Glan Laser Polarizer
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Part No.
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Wavelength Rang(nm)
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Extinction Ratio
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Angular Field(°)
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C.A. fa(mm)
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O.D. fd(mm)
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L ±0.1(mm)
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GLP9006
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500-4000
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<5x10-6
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>6.5°
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6.0
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15.0
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15.5
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GLP9008
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8.0
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25.4
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19.0
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GLP9010
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10.0
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25.4
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22.5
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GLP9015
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15.0
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30.0
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31.0
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GLP9020
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20.0
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38.0
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38.0
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Note：Custom designs for other sizes and coatings are also available upon request
