Solid Silicon Etalons

Solid silicon etalons are interesting because the high index of silicon (3.4 depending on wavelength) creates a reasonably high finesse without any coatings. The temperature sensitivity of silicon can also be useful (or problematic). These etalons are often used to monitor the wavelengths of long wavelength lasers in applications such as Tunable Diode Laser Absorption Spectroscopy, TDLAS,

  • Material: Silicon
  • Wavelength range: IR 1.2um to 6.3um
  • Wedge < 0.5 arc second*
  • Surface quality: 40/20 or better
  • Surface figure: λ/20
  • Mounting: the 8x8mm and 14x14mm etalons can be cemented to a 1" diameter holder
  • Finesse is ~2.5 dependent on the wavelength
  • Thickness: see table
  • * If your etalons require coatings then we can use our fluid jet polishing system to reduce the wedge and increase the finesse
  • We have two standard sizes for the silicon etalons 

Contact us anytime for custom items - that's what we do

8 X 8MM THIN SILICON ETALONS
PDF
$790

1660GHz Solid Silicon Etalon

Part Number: OP-3852-25
Details: 0.025mm thick, 8mm x 8mm, clear aperture 5mm

Quote
PDF
$780

1300GHz Solid Silicon Etalon

Part Number: OP-3852-30
Details: 0.030mm thick, 8mm x 8mm, clear aperture 5mm

Quote
PDF
$757

1040GHz Solid Silicon Etalon

Part Number: OP-3852-40
Details: 0.040mm thick, 8mm x 8mm, clear aperture 5mm

Quote
PDF
$747

830GHz Solid Silicon Etalon

Part Number: OP-3852-50
Details: 0.050mm thick, 8mmx8mm, clear aperture 5mm

Quote
PDF
$730

680GHz Solid Silicon Etalon

Part Number: OP-3852-60
Details: 0.060mm thick, 8mmx8mm, clear aperture 5mm

Quote
PDF
$708

415GHz Solid Silicon Etalon

Part Number: OP-3852-100
Details: 0.100mm thick, 8mm x 8mm, clear aperture 5mm diameter

Quote
PDF
$688

100GHz Solid Silicon Etalon

Part Number: OP-3852-416
Details: 0.416mm thick, 8mm x 8mm, clear aperture 5mm diameter

Quote
PDF
$674

50GHz Solid Silicon Etalon

Part Number: OP-3852-831
Details: 0.831mm thick, 8mm x 8mm, clear aperture 5mm diameter

Quote
PDF
$98

8mm Etalon Mount

Part Number: OP-4397-8
Details: 1" diameter aluminum mount designed to hold an 8mm x 8mm etalon.  Price includes cementing the etalon to the mount at LightMachinery.

Quote
THICK SILICON ETALONS
PDF
$460

4.1mm Solid Silicon Etalon

Part Number: OP-2638-4155
Details: 4.155mm long,  ~10GHz, 1" diameter

Quote
PDF
$662

8.3mm Solid Silicon Etalon

Part Number: OP-2638-8311
Details: 8.311mm long,  ~5GHz, 1" diameter

Quote
PDF
$805

16mm Solid Silicon Etalon

Part Number: OP-2638-16622
Details: 16.622mm long, ~2.6GHz, 1" diameter

Quote
PDF
$1983

41mm Solid Silicon Etalon

Part Number: OP-2638-41555
Details: 41.555mm long, ~1GHz, 1" diameter

Quote
PDF
$3212

83mm Solid Silicon Etalon

Part Number: OP-2638-83110
Details: 83.110mm long, ~0.5GHz, 1" diameter

Quote
learn more about etalons!
Image for etalon-ring-pattern-2.jpg

Etalons

Learn more about the various types of etalons we can make (and see some cool pictures)

Image for etalon-designer-square-reverse.jpg

Optical Design Center

Design etalons, lenses, resonators, VIPA's and explore optical material properties.

Image for fish 3.jpg

Fluid Jet Polishing

Learn more about Fluid Jet Polishing, it is one of our enabling technologies