Where to Buy Etalons

For highest resolution, our portfolio of high-performance etalons features very high-quality, flat and level surfaces with low roughness and extreme parallelism:

• solid etalons made from a wide variety of materials such as fused silica, germanium, silicon, zinc selenide, or YAG
• broadband metallic coated solid fused silica metalons can make a difference for wavelength monitoring
• fixed or tunable air spaced etalons
• VIPA etalons (Virtually Imaged Phase Arrays)
• customized etalons that exactly meet your specific requirements

See us at Medi'Nov Connection 2023 in Lyon, France, May 31 – June 1 (booth 44) and Optics & Photonics Days 2023 in Joensuu, Finland, May 30 – June 1!

ALPHALAS offers etalons made of fused silica for wavelength tuning and single-frequency operation of lasers. Etalons with diameter 8 mm and thicknesses 0.2 mm, 0.9 mm or 1.3 mm, coated with different reflectivities in the near infrared region, are available from stock.

Upgraded to resonant reflectors (stack of very high precision fused quartz flats with spacers and different number of elements), these have very high periodic spectral selectivity and very high damage threshold.

Customer-specific designs are also available.

LightMachinery manufactures the world's finest solid and air spaced etalons. Our fluid jet polishing systems allow us to routinely create surfaces that are better than λ/100 peak to valley.

Solid etalons, air spaced etalons, piezo tunable etalons, Gires–Tournois etalons – LightMachinery has extensive expertise in the manufacturing and testing of all kinds of Fabry–Pérot etalons from 1 mm square to 100 mm in diameter. These devices require high quality, very flat optical surfaces and extreme parallelism to achieve high performance, making them a good match for the polishing and metrology at LightMachinery.

Iridian fabricates custom high quality fused silica and Si etalons at competitive prices with FSR values in the range of 12.5 GHz to 500 GHz, Here are some typical fused silica and single cavity etalon products manufactured by Iridian.