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Optical windows

Wedged windows
A sedged window has an angle of 30" between two unparallel planes, avoiding the interference effect due to light reflection by the front and back surfaces of a high-parallelism window, and problems such as poor stability and mode hopping of laser output due to optical interference feedback by the laser resonator. Wedged windows are usually used to make incident beam deviate by certain angles toward the designated directions. When used in a pair, relative rotation of the two optical wedges can make the emergent beam situated in any direction in a pyramid taking the incident beam as its axis.

Name Parameters
Material K9/ultraviolet fused quartz
Surface flatness λ10@633nm
Wedge angle 30 arcmin±10 arcmin
Diameter tolerance +0.0/-0.1mm
Thickness tolerance ±0.02mm
Surface finish 10/5~20/10
Bevel 0.2~0.5mm x 45°
Coating As per customer's request
*The dimensions and the coating are both customizable.



Quartz windows

Quartz glass is a kind of special industrial glass made from SiO2.Asa good base material,it has excellent physical,chemical and optical properties.It allows transmission of far ultraviolet light,visible light and near-infrared light,becoming the best choice among all he base materials allowing transmission of ultraviolet light.Thanks to its resistance to high temperature, extremely smal thermal expansivity,extremely high chemical stability,and extent ofbubbles,stripes,uniformity and double refraction comparable to ordinaryoptical glass,it is a necessary optical material with a highly stable optical coeficient when used in severe conditions.

λ8@633nmλ6@633nm<45"<45"20/10~40/2020/10~40/200.2~0.5mm x45°
Material K9/ultraviolet fused quartz/sapphire/Ge/CaF2/ZnSe,eto.
Surface flatness K9 λ10@633nm
Ultraviolet quartz λ10@633nm (standard),λ10@633nm (high precision)
Sapphire λ10@633nm (standard),λ10@633nm(high precision)
Ge λ10@633nm
CaF₂
ZnSe
Parallel error K9 <30"
Ultraviolet quartz <30"
Sapphire <30"
Ge <30"
CaF₂
ZnSe
Thickness tolerance K9/ultraviolet quartz ±0.01mm
CaF₂ ±0.03mm
Diameter tolerance +0.0/-0.1mm,+0.0/-0.2mm(CaF₂)
Surface finish K9 40/20~60-40
Ultraviolet quartz 40/20~60-40 (standard),10/5~20/10(high precision)
Sapphire 80-50 (standard),40-20(high precision)
Ge 40/20~60/40
CaF₂ 20/10~40/20
ZnSe 20/10~40/20
Bevel 0.2~0.5mm x 45°
*The dimensions and the coating are both customizable

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