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8 Year Exporter Ceramic Cavity - THIN FILM POLARIZER – WISOPTIC

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8 Year Exporter Ceramic Cavity - 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


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8 Year Exporter Ceramic Cavity - THIN FILM POLARIZER – WISOPTIC detail pictures

8 Year Exporter Ceramic Cavity - THIN FILM POLARIZER – WISOPTIC detail pictures

8 Year Exporter Ceramic Cavity - 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 8 Year Exporter Ceramic Cavity - THIN FILM POLARIZER – WISOPTIC, The product will supply to all over the world, such as: Maldives, Vietnam, Morocco, You can let us know your idea to develop unique design for your own model to prevent too much similar parts in the market! We will offer our best service to satisfy all your needs! Please contact us right away!
  • The factory has advanced equipment, experienced staffs and good management level, so product quality had assurance, this cooperation is very relaxed and happy!
    5 Stars By Maggie from Ukraine - 2017.10.27 12:12
    Problems can be quickly and effectively resolved, it is worth to be trust and working together.
    5 Stars By Dolores from Plymouth - 2017.08.21 14:13

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