Laser Windows

Laser windows are precision laser optical components built to strict laser-induced damage threshold (LIDT) specifications, making them fully compatible with high-power laser applications. They act as a protective barrier for internal electronic sensors and detectors, maintaining an unobstructed optical line of sight without altering the system’s native magnification.

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Material	Fused Silica, or according to customer's request
Tolerance	+/-0.01mm/+/-0.1mm
Flatness	PV: 1/10 Lambda
Focal Length Tolerance	+/-1%
Centration	< 30 arc seconds
Surface Quality	10/5,20/10,40/20
Clear Aperture	>90%
Bevel	Protective bevel
Coating	According to customer's request
Damage Threshold	20J/cm²@1064nm,20ns(AR@1064nm), 6.8J/cm²@532nm,20ns(AR@532nm), 5J/cm²@355nm,20ns(AR@355nm), 15J/cm²@1064nm,20ns(AR@1064＆532nm) Or according to customer's request

Materials & Coatings

Our laser windows are precision-manufactured from two industry-standard substrate materials: H-K9L optical glass and UV fused silica. All windows are finished with high-performance anti-reflection (AR) coatings, optimized for target operating wavelengths.

Standard wavelength coverage includes 266nm, 355nm, 532nm, 633nm and 1064nm, with custom wavelength coatings available on request.

Performance Advantages

Beyond shielding internal sensors and detectors from debris, dust and environmental damage, our laser windows deliver consistently high transmittance and exceptional transmitted wavefront quality. Built to strict laser-induced damage threshold (LIDT) specifications, they offer far greater reliability in high-power systems than standard optical windows.

Typical Applications

Protective windows for laser cutting heads
Optical observation ports and viewports
Enclosure protection for laser systems
Industrial laser processing equipment

Selection Guidance

When specifying a laser window, key factors to evaluate include substrate material, optical transmittance, scattering loss, wavefront distortion, surface parallelism, and the intended operating environment.

Our Capabilities

AOS Optics supplies a full range of standard and custom optical components. We specialize in fabricating high-power laser optics to your exact requirements, including lenses, windows, prisms and polarizers.

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