Good quality Lenses - THIN FILM POLARIZER – WISOPTIC

Short Description:

Product Detail

Product Tags

Feedback (2)

The customer satisfaction is our primary goal. We uphold a consistent level of professionalism, quality, credibility and service for Pbs, Optical Components, Rtp, Only for accomplish the good-quality product or service to satisfy customer's demand, all of our products have been strictly inspected before shipment.

Good quality Lenses - 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

Product detail pictures:

Related Product Guide:

We not only will try our best to offer excellent services to every customer, but also are ready to receive any suggestion offered by our customers for Good quality Lenses - THIN FILM POLARIZER – WISOPTIC, The product will supply to all over the world, such as: Mexico, UK, Eindhoven, Customer satisfaction is our goal. We are looking forward to cooperating with you and providing our best services for you. We warmly welcome you to contact us and please feel free to contact us. Browse our online showroom to see what we can do for you. And then E-mail us your specifications or inquiries today.

Cavity Mirror