overview
A polarizer is an important optical component that is widely used in optics to produce a state of linear polarization. UPT provides polarizers withfourmaterials, a -BBO, Calcite ,YVO4and Quartz, makin..
ProductsPolarization OpticsPolarizer Opticsoverview
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.
|
POLARIZER
|
MATERIAL
|
ILLUSTRATION
|
PROPERTIES AND APPLICATIONS
|
|
Glan Taylor Polarizer
|
a-BBO(190-3500nm)
Calcite(350-2300nm) YVO4(500-4000nm) |
 |
² Air-spaced
² Close to Brewster's Angle Cutting
² Low L/A=0.8
² For medium power application
|
|
Glan Laser Polarizer
|
a-BBO(200-3500nm)
Calcite(350-2300nm) YVO4(500-4000nm) |
 |
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
|
|
High Transmission Glan Laser Polarizer
|
YVO4(500-4000nm)
Calcite(350-2300nm) |
 |
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
|
|
Glan Thompson Polarizer
|
a-BBO(220-900nm)
Calcite(350-2300nm) |
 |
² Cemented
² Suitable for low power applications
² Wide acceptance angle
|
|
Broadband Glan Thompson Polarizer( 200-3300nm)
|
a-BBO(220-3300nm)
|
|
² Cemented
² Suitable for low power online_orderings
² Wide acceptance angle
|
|
Glan Thompson Polarizing Beamsplitter Cube
|
Calcite
(350-2300nm) |
 |
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
|
|
Wollaston Polarizer
|
a-BBO(200-3500nm)
Calcite(350-2300nm) YVO4(500-4000nm) Quartz(200-2300nm) |
 |
² Cemented
² Separate ordinary and extraordinary beams at certain angle
² Suitable for low power application and where the large deviation is required
|
|
Rochon Polarizer
|
a-BBO(200-3500nm)
YVO4(500-4000nm) Quartz(200-2300nm) |
 |
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
|
|
Polarization Beam Displacers
|
YVO4 (488 nm- 3400 nm)
Calcite
(350-2300nm) |
 |
² Cemented
² Suitable for low power application
² Separate an Input into Two Orthogonally Polarized Beams
|
|
Polarization Cube Beamsplitter
|
BK7 Grade A Optical Glass Or Fused silica, SF11
|
 |
² Split the ordinary and extraordinary ray. The ordinary beam is deviated 90°Refer to chapter "Beamsplitter" For detailed information.
²
|
 |
 |
|
Calcite: T% vs Wavelength
|
a -BBO: T% vs Wavelength
|
 |
 |
|
YVO4: T% vs Wavelength
|
Quartz: T% vs Wavelength
|
Comparison of the four materials property as below:
|
|
YVO4
|
Calcite
|
a-BBO
|
Quartz
|
|
Transparency
|
500-4000nm
|
350-2200nm
|
200-3500nm
|
200-2300nm
|
|
Crystal Class (Uniaxial)
|
Positive
no=na=nb,ne=nc |
Negative
no=na=nb,ne=nc |
Negative
no=na=nb,ne=nc |
Positive
no=na=nb,ne=nc |
|
Mohs Hardness
|
5
|
3
|
4.5
|
7
|
|
Thermal Expansion Coefficient
|
aa=4.43x10-6/K
ac=11.37x10-6/K |
aa=24.39x10-6/K
ac=5.68x10-6/K |
aa=4x10-6/K
ac=36x10-6/K |
aa=6.2x10-6/K
ac=10.7x10-6/K |
|
Hygroscopic Susceptibility
|
No Hygroscopic
|
Low to moisture
|
High
|
No Hygroscopic
|