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OEM/ODM China Cavity Mirror - THIN FILM POLARIZER – WISOPTIC

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OEM/ODM China Cavity Mirror - THIN FILM POLARIZER – WISOPTIC Detail:

Thin film polarizers are made from composed materials which include a polarizing film, an inner protective film, a pressure-sensitive adhesive layer, and an outer protective film. Polarizer is used to change un-polarized beam into linear polarized beam. When the light passes through the polarizer, one of the orthogonal polarization components is strongly absorbed by the polarizer and the other component is weakly absorbed, thus natural light is converted into linearly polarized light.

Polarization optics is important for both intra and extra cavity use. By having high contrast thin film polarizers in their design, laser engineers can save weight and volume within their devices without influencing the output. Compared with polarizing prism, polarizer has larger incident angle and can be made with larger apertures. Compared with polarizers made from birefringent crystals, the advantage of thin film polarizers is that they can be made in very large sizes, therefore can work in a laser device with high power or energy.

WISOPTIC Specifications – Thin Film Polarizers

Material BK7, UVFS
Diameter Tolerance +0.0/-0.15 mm
Thickness Tolerance ± 0.1 mm
Clear Aperture > 90% of central area
Surface Quality [S/D] < 20/10 [S/D]
Transmitted Wavefront Distortion λ/10 @ 632.8 nm
Parallelism ≤ 30”
Extinction Ratio (Tp/Ts) > 200:1
  Coating   High LDT coating upon request
  Laser Damage Threshold 10 J/cm² @ 1064 nm, 10 ns, 10 Hz

Comparison of Different Materials of Polarizers

YVO4 Calcite α-BBO Quartz
Transparency Band 500-4000 nm 350-2300 nm 220-3000 nm 200-2300 nm
Crystal Type (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=4.43×10-6/K
ac=11.37×10-6/K
aa=24.39×10-6/K
ac=5.68×10-6/K
aa=4×10-6/K
ac=36×10-6/K
aa=6.2×10-6/K
ac=10.7×10-6/K

glt
glt-2
polarizer-3


Product detail pictures:

OEM/ODM China Cavity Mirror - THIN FILM POLARIZER – WISOPTIC detail pictures

OEM/ODM China Cavity Mirror - THIN FILM POLARIZER – WISOPTIC detail pictures

OEM/ODM China Cavity Mirror - THIN FILM POLARIZER – WISOPTIC detail pictures


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We constantly continually give you essentially the most conscientious client provider, plus the widest variety of designs and styles with finest materials. These initiatives include the availability of customized designs with speed and dispatch for OEM/ODM China Cavity Mirror - THIN FILM POLARIZER – WISOPTIC, The product will supply to all over the world, such as: Saudi Arabia, Mali, Bulgaria, Adhering to the principle of "Enterprising and Truth-Seeking, Preciseness and Unity", with technology as the core, our company continues to innovate, dedicated to providing you with the highest cost-effective products and meticulous after-sales service. We firmly believe that: we are outstanding as we are specialized.
  • The goods are very perfect and the company sales manager is warmful, we will come to this company to purchase next time.
    5 Stars By Myrna from French - 2017.08.18 11:04
    The company leader recept us warmly, through a meticulous and thorough discussion, we signed a purchase order. Hope to cooperate smoothly
    5 Stars By Poppy from UAE - 2018.09.08 17:09

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