Square/Rectangular

Both Rectangular Windows (RW) and Square Windows (SQW) are made for use as laser windows and beamsplitters. These uncoated laser-grade windows are polished to near perfect parallel surfaces which allows for the angular deviation and misalignment to be minimized when used in high power and high performance applications. They are intended for transmissive use and are parallel to equal to or better than five arc minutes. These windows are manufactured to a surface figure of λ/10 at 633nm, except where otherwise indicated. OptiSource Rectangular / Square Windows  are available as coated optics. To select a coating please see the coating offerings in our catalog; if your dimension is not listed, please call OptiSource Technical Sales regarding a quotation for your prototype or OEM requirement.

Rectangular Windows Configurations
Product Number Length (mm) Width (mm) Thickness (mm) Surface Quality Surface Figure Material
RW-28.6-14.3-3.18-XX 28.60 14.30 3.18 10–5 λ/4 @ 633nm UV, BK-7
RW-40.0-30.0-5.00-XX 40.00 30.00 5.00 10–5 λ/10 @ 633nm UV, BK-7

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Square Windows Configurations
Product Number Length (mm) Width (mm) Thickness (mm) Surface Quality Surface Figure Material
SQW-0525-XX 12.7 12.7 6.35 10–5 λ/10 @ 633nm UV, BK-7
SQW-1025-XX 25.4 25.4 6.35 10–5 λ/10 @ 633nm UV, BK-7
SQW-1037-XX 25.4 25.4 9.53 10–5 λ/10 @ 633nm UV, BK-7
SQW-2037-XX 50.8 50.8 9.53 10–5 λ/10 @ 633nm UV, BK-7