Laser Optics Precision Optics Optical Windows ZnSe Windows Germanium Windows

Optical Windows

Optical windows are designed to transmit light with minimal distortion, scattering, or absorption. They are typically flat, transparent plates made of materials with excellent optical properties. Wavelength Opto-Electronic design and manufacture optical windows of different wavelengths, coatings, and materials.

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Part NumberWavelength (nm)MaterialDiameter (mm)Thickness (mm)Application
WFS-37-7 *NEW*1030-1090Fused Silica37.07.0Protective
WBK-0.5-2G532N-BK712.72.0Protective
WBK-24-1.4-YG532 / 1064N-BK724.01.4Protective
WBK-25-1.11064N-BK725.01.1Protective
WBK-30-1.41064N-BK730.01.4Protective
WBK-38-31064N-BK738.03.0Protective
WBK-60-31064N-BK760.03.0Protective
WBK-72-31064N-BK772.03.0Protective
WBK-74-2.5G532N-BK774.02.5Protective
WBK-75-1.6G532/1064N-BK775.01.6Protective
WBK-76-31064N-BK776.03.0Protective
WBK-78-1.51064N-BK778.01.5Protective
WBK-80-2.5532/1064N-BK780.02.5Protective
WBK-84-2YG532 / 1064N-BK784.02.0Protective
WBK-85-21064N-BK785.02.0Protective
WBK-86-2.5G532/1064N-BK786.02.5Protective
WBK-96-31064N-BK796.03.0Protective
WBK-97-2.51064N-BK797.02.5Protective
WBK-98-2.51064N-BK798.02.5Protective
WBK-106-31064N-BK7106.03.0Protective
WBK-108-2.5GR532 / 650N-BK7108.02.5Protective
WBK-110-2.51064N-BK7110.02.5Protective
WBK-116-21064N-BK7116.02.0Protective
WBK-116-31064N-BK7116.03.0Protective
WBK-118-3G532N-BK7118.03.0Protective
WBK-120-31064N-BK7120.03.0Protective
WBK-123-31064N-BK7123.03.0Protective
WBK-126-3G532/1064N-BK7126.03.0Protective
WBK-128-21064N-BK7128.02.0Protective
WBK-150-31064N-BK7150.03.0Protective
WFS-15-21030-1090Fused Silica15.02.0Protective
WFS-16-1.55-YG515-545 / 1030-1090Fused Silica16.01.6Protective
WFS-18-31030-1090Fused Silica18.03.0Protective
WFS-20-2-YG515-545 / 1030-1090Fused Silica20.02.0Protective
WFS-22-31030-1090Fused Silica22.03.0Protective
WFS-25-31030-1090Fused Silica25.03.0Protective
WFS-1-3UG1030-1090/515-545/343-355Fused Silica25.43.0Protective
WFS-28-41030-1090Fused Silica28.04.0Protective
WFS-30-51030-1090Fused Silica30.05.0Protective
WFS-36-21030-1090Fused Silica36.02.0Protective
WFS-1.5-51030-1090Fused Silica38.15.0Protective
WFS-43-2G515-545Fused Silica43.02.0Protective
WFS-50-1.51030-1090Fused Silica50.01.5Protective
WFS-55-1.51030-1090Fused Silica55.01.5Protective
WFS-70-9.51030-1090Fused Silica70.09.5Protective
WFS-90-3U343-355Fused Silica90.03.0Protective
WFS-104-3U343-355Fused Silica104.03.0Protective
WFS-104-31030-1090Fused Silica104.03.0Protective
WFS-110-2.51030-1090Fused Silica110.02.5Protective
WFS-110-31030-1090Fused Silica110.03.0Protective
WFS-140-41030-1090Fused Silica140.04.0Protective
WFS-150-31030-1090Fused Silica150.03.0Protective
WFS-170-31030-1090Fused Silica170.03.0Protective
WFS-3.5-1E2940Fused Silica3.51.0Medical Laser Er:YAG
WSP-15.7-1.11064/750Sapphire15.71.1Medical Laser
WSP-1-31064/750Sapphire25.43.0Medical Laser
WBK-0.5-2N1064/532N-BK712.72.0Medical Laser Nd:YAG
WBK-0.6-2N1064/532N-BK715.22.0Medical Laser Nd:YAG
WBK-0.75-2.5N1064/532N-BK719.12.5Medical Laser Nd:YAG
WBK-1-3N1064/532N-BK725.43.0Medical Laser Nd:YAG
WBK-1.5-4N1064/532N-BK738.14.0Medical Laser Nd:YAG
WBK-16-1A755/633N-BK716.01.0Medical Laser Alex
WBK-0.5-2R694/633N-BK712.72.0Medical Laser Ruby
WBK-0.6-2R694/633N-BK715.22.0Medical Laser Ruby
WBK-0.75-2.5R694/633N-BK719.12.5Medical Laser Ruby
WBK-1-3R694/633N-BK725.43.0Medical Laser Ruby
WBK-1.5-4R694/633N-BK738.14.0Medical Laser Ruby
WZ-0.5-210600/9400ZnSe12.72.0Protective
WZ-18-210600/9400ZnSe18.02.0Protective
WZ-0.75-310600/9400ZnSe19.13.0Protective
WZ-1-310600/9400ZnSe25.43.0Protective
WZ-1.1-310600/9400ZnSe27.93.0Protective
WZ-1.5-310600/9400ZnSe38.13.0Protective
WZ-50-310600/9400ZnSe50.03.0Protective
WZ-2-510600/9400ZnSe50.85.0Protective
WZ-55-310600/9400ZnSe55.03.0Protective
WZ-60-310600/9400ZnSe60.03.0Protective
WZ-75-310600/9400ZnSe75.03.0Protective
WZ-80-310600/9400ZnSe80.03.0Protective
WZ-88-310600/9400ZnSe88.03.0Protective
WZ-90-310600/9400ZnSe90.03.0Protective
WZ-110-510600/9400ZnSe110.05.0Protective
WZ-180-610600/9400ZnSe180.06.0Protective
WZB-0.5×1.3-2C(Corner cut)10600/9400ZnSe12.7 x 33.02.0Protective
WZB-0.5×1.3-210600/9400ZnSe12.7 x 33.02.0Protective
WZ-15×18-110600/9400ZnSe15.0 x 18.01.0Protective
WZB-0.6×1.5-210600/9400ZnSe15.2 x 38.12.0Protective
WZB-0.7×1.8-210600/9400ZnSe17.7 x 45.72.0Protective
WZB-0.75×1.5-310600/9400ZnSe19.0 x 38.13.0Protective
WZB-20.3×52.8-310600/9400ZnSe20.3 x 52.83.0Protective
WZB-25×50-310600/9400ZnSe25.0 x 50.03.0Protective
WZB-25×66-310600/9400ZnSe25.0 x 66.03.0Protective
WZB-1.0×2.6-310600/9400ZnSe25.4 x 66.03.0Protective
WZB-26.42×10.16-210600/9400ZnSe26.42 x 10.162.0Protective
WZB-30×75-510600/9400ZnSe30.0 x 75.05.0Protective
WZ-31.75×31.75-410600/9400ZnSe31.7 x 31.74.0Protective
WZB-1.5×3.9-410600/9400ZnSe38.1 x 99.14.0Protective
WZ-50×80-310600/9400ZnSe50.0 x 80.03.0Protective
WZB-2.0×5.2-510600/9400ZnSe50.8 x 132.15.0Protective
WZB-53×20-310600/9400ZnSe53.0 x 20.03.0Protective
WZ-65×85-310600/9400ZnSe65.0 x 85.03.0Protective
WZ-90×60-310600/9400ZnSe90.0 x 60.03.0Protective
WZ-92×68-310600/9400ZnSe92.0 x 68.03.0Protective
WZ-95×95-310600/9400ZnSe95.0 x 95.03.0Protective
WZ-150×105-310600/9400ZnSe150.0 x 105.03.0Protective
WZ-185×125-610600/9400ZnSe185.0 x 125.06.0Protective
WGE-25-3-BB8000-12000Ge25.03.0Protective
WGE-30-3-BB8000-12000Ge30.03.0Protective
WGE-35-3-BB8000-12000Ge35.03.0Protective
WGE-36-2-BB8000-12000Ge36.02.0Protective
WGE-38-3-BB8000-12000Ge38.03.0Protective
WGE-1.5-3-BB8000-12000Ge38.13.0Protective
WGE-1.5-5-BB8000-12000Ge38.15.0Protective
WGE-42-2-BB8000-12000Ge42.02.0Protective
WGE-45-3-BB8000-12000Ge45.03.0Protective
WGE-2-3-BB8000-12000Ge50.83.0Protective
WGE-85-3-BB8000-12000Ge85.03.0Protective
WGE-100-3-BB8000-12000Ge100.03.0Protective
WGE-110-4-BB8000-12000Ge110.04.0Protective
WGE-124-4-BB8000-12000Ge124.04.0Protective
WGE-142-6-BB8000-12000Ge142.06.0Protective
WGE-150-15-BB8000-12000Ge150.015.0Protective
WGE-152X120X6.54-BB8000-12000Ge152.0 x 120.06.5Protective
WGE-156-6-BB8000-12000Ge156.06.0Protective
WGE-160-6-BB8000-12000Ge160.06.0Protective
WGE-178-6-BB8000-12000Ge178.06.0Protective

Product NamePart NumberWavelength (nm)Dimension (mm x mm)MaterialThickness (mm)Angle on Incidence (°)
Thin Film PolarizerTFP-Z-19x38x3M10600/940019 x 38ZnSe3.0Brewster
Thin Film PolarizerTFP-Z-25x64x3M10600/940025 x 64ZnSe3.0Brewster

Glass Optical WindowsIR Optical WindowsMedical Laser Windows

Optical Window Medical Laser Window IR Window Diagram

From UV to VIS to IR wavelength, we have fused silica (WFS series) and BK7 (WBK series) optical windows, which are known for their low coefficient of thermal expansion, it has a high transmittance for light from ultraviolet to the near-infrared range, low scattering, and excellent cost-effectiveness. Coated fused silica windows are widely used in fiber laser cutting and welding systems.

Diameter Tolerance: +0/-0.25mm
Thickness Tolerance: ±0.25mm
Parallelism: ≤ 10arcsec or 30 ± 5arcmin
Clear Aperture: ≥ 85% of central diameter
Surface Quality: 40-20 Scratch & Dig
AR Coating: R≤0.25% per surface @ 1064nm (Single Wavelength) | R≤0.3% @ 1064nm (Dual Wavelength)
Damage Threshold: 10J/cm2, 10ns, 20Hz @ 1064nm (Single Wavelength) | 3.5J/cm2, 10ns, 20Hz @ 532nm (Dual Wavelength) | 7J/cm2, 10ns, 20Hz @ 1064nm (Dual Wavelength)

IR optical windows isolate different physical environments while allowing light to pass through. These windows are made of Ge material (WGE series).

Diameter Tolerance: +0.0, -0.2 mm
Thickness Tolerance: ±0.2mm
Clear Aperture: >80%
Parallelism: <3 arc min
Surface Quality: 40-20 Scratch & Dig
Flatness: λ /2 @632.8nm per 25mmDia

We provide medical laser windows (WBK series) for varieties of medical laser systems such as CO2, Q-switched Nd:YAG, ER:YAG, Ruby, and Alex Laser systems. These optics have been used as replacements in well-known medical systems such as Con-Bio, ESC, Sharplan, Candela, and Coherent.

Diameter Tolerance: +0/-0.13mm
Thickness Tolerance: ±0.25mm
Parallelism: < 3 arc min.
Clear Aperture: >90% 
Surface Flatness: 
λ/4 per 1″Dia@632.8nm
Surface Quality: 
40-20 S-D

ZnSe Optical WindowsZnSe Thin Film Polarizers

ZnSe Window Diagram

ZnSe optical (WZ Series) and ZnSe brewster windows (WZB Series) are commonly used in thermal resistance applications. These optical windows are available with us in coated or uncoated form and in a wide variety of shapes and sizes. It has wide usage in high-power CO2 laser systems.

Dimension Tolerance: +0/-0.13mm
Thickness Tolerance: ±0.25mm
Parallelism: ≤3 arc min.
Clear Aperture: >90%
Surface Flatness: λ/4 per 1″Dia@632.8nm
Surface Quality: 60-40 S-DAR
Coating: R<0.2% per surface @10.6μm
Angle of Incidence: Brewster Angle @ 10.6μm

ZnSe Window Thin Film Diagram

Thin film polarizers (TFP series) are used to split a laser beam into two parts with S and P Polarizations. Meanwhile, they can also be used to combine two beams with S and P polarizations. They consist of a coated plate, which is oriented at Brewster’s angle with respect to the incoming beam. The thin-film coating is able to enhance the reflectivity of the s-polarized component of the beam and maintain high transmission of the p-polarized component.

Material: ZnSe
Surface Flatness: λ/4 per 1″Dia@632.8nm
Surface Quality: 40-20 S-D
Coating: Tp =97%+/-0.5%@10.6um | Rs =97%+/-0.5%@10.6μm
Angle of Incidence: 67.3˚ (brewster angle@10.6μm)

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