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Fused Silica (SiO2) Windows and Rods

Fused silica is the amorphous form of quartz.  Advantages of fused silica material include the extremely good transparency from UV to IR, low coefficient of thermal expansion, large resistance to thermal shock over large temperature excursions, wide thermal operating range and high laser damage threshold. Various high quality HR, AR, and partial reflective coatings are available on fused silica faces. 

Basic Properties

Shapes and Geometries


Round Parallel Windows/Rods


Square Parallel Windows/Rods

 
Standard Products

 Part No. Dimensions (mm) Coating In stock
Dia=1.0"=25.4mm
FSG10025 φ25.4 x 0.25 Uncoated Yes
FSG1005 φ25.4 x 0.5 Uncoated Yes
FSG1010 φ25.4 x 1.0 Uncoated Yes
FSG1010
-AR800/400
φ25.4 x 1.0 Dualband AR@800/400nm Yes
FSG1010
-BBAR1200/2100
φ25.4 x 1.0 Broadband AR@(1200-2100)nm Yes
FSG1020 φ25.4 x 2.0 Uncoated Yes
FSG1050 φ25.4 x 5.0 Uncoated Email/Call
FSG1050
-BBAR1200/2100
φ25.4 x 5.0 Broadband AR@(1200-2100)nm Yes
FSG1060 φ25.4 x 6.0 Uncoated Email/Call
FSG1100 φ25.4 x 10.0 Uncoated Email/Call
FSG1127 φ25.4 x 12.7 Uncoated Yes
FSG1200 φ25.4 x 20.0 Uncoated Email/Call
FSG1254 φ25.4 x 25.4 Uncoated Yes
FSG1300 φ25.4 x 30.0 Uncoated Email/Call
FSG1300-AR266 φ25.4 x 30.0 AR@266nm Yes
FSG1400
-BBAR1010/1050
φ25.4 x 30.0 Broadband AR@(1010-1050)nm Yes
FSG1508 φ25.4 x 50.8 Uncoated Yes
FSG1600-AR266 φ25.4 x 60.0 AR@266nm Yes
FSL1100 φ25.4 x 100.0 (long rod) Uncoated Email/Call
FSL1150 φ25.4 x 150.0 (long rod) Uncoated Email/Call
Dia=2.0"=50.8mm
FSG2063 φ50.8 x 6.35 (1/4") Uncoated Email/Call
FSG2095 φ50.8 x 9.52( 3/8") Uncoated Email/Call
FSG2127 φ50.8 x 12.7 (1/2") Uncoated Email/Call
Square Windows , Mounted OD=1.0"=25.4mm
FSM10025
-AR800/400
10 x 10 x 0.25 Dualband AR@800/400nm Yes
FSM15015
-AR800/400
15 x 15 x 0.15 Dualband AR@800/400nm Yes
Square Windows
FSW10025 25.4 x 25.4 x 0.25 Uncoated Yes
FSW1010 25.4 x 25.4 x 1.0 Uncoated Email/Call
FSW1020 25.4 x 25.4 x 2.0 Uncoated Email/Call
FSW1050 25.4 x 25.4 x 5.0 Uncoated Email/Call
FSW1254 25.4 x 25.4 x 25.4 Uncoated Email/Call


In addition to these standard parts, Newlight can produce a wide variety of custom products with various apertures and thicknesses. Please contact us for assistance for your custom requirements

Coatings:

High quality HR, AR, Broadband AR (BBAR) and partial reflective (PR) coatings are also available upon request.

AR Coatings: R<0.2% at the central wavelength
HR Coatings: R>99.6% at the central wavelength
PR Coatings: R=3-95% at the specified wavelength
Broadband AR: R<1% over the specified range

Specifications of Fused Silica Windows

Dimension Tolerance:

± 0.1mm

Clear Aperture: > 85%

Surface Quality:

10/5 Scratch and Dig

Perpendicularity:

< 10 arc min

Parallelism: < 1 arc min

Flatness:

λ/10 @ 632.8nm

Transmission Wavefront Distortion:

< λ/10 @632.8nm

Bevel: < 0.25mm X 45°

 


 

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