Excellent quality Lens - THIN FILM POLARIZER – WISOPTIC

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We keep on with the theory of "quality first, provider initially, constant improvement and innovation to meet the customers" with the management and "zero defect, zero complaints" as the standard objective. To great our company, we deliver the merchandise using the fantastic excellent at the reasonable price for Diffusion Bonded Crystals, Yvo4 Crystal, Laser Windows, We have built a reliable reputation among many customers. Quality&customer first are always our constant pursuit. We spare no efforts to make better products. Look forward to long-term cooperation and mutual benefits!

Excellent quality Lens - 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 (T_p/T_s)	> 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 n_o=n_a=n_b, n_e=n_c	Negative n_o=n_a=n_b, n_e=n_c	Negative n_o=n_a=n_b, n_e=n_c	Positive n_o=n_a=n_b, n_e=n_c
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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That has a sound business enterprise credit rating, exceptional after-sales provider and modern producing facilities, we now have earned an superb standing amongst our buyers across the world for Excellent quality Lens - THIN FILM POLARIZER – WISOPTIC, The product will supply to all over the world, such as: Croatia, New Delhi, Israel, If any item be of interest to you, please let us know. We will try our best to satisfy your requirements with high quality products, the best prices and prompt delivery. Please feel free to contact us at any time. We will reply you when we receive your inquiries. Please note that samples are available before we start our business.

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