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Units 11-12a Isle of Man Freeport, Ballasalla

ETALONS

optical etalons for precision wavelength control

Our etalons deliver exceptional precision and versatility, catering to a wide range of applications, including spectroscopy, laser wavelength control, and optical filtering.

Key characteristics of our ETALONS

  • Unmatched wavelength selectivity
  • Exceptional optical quality
  • Customisable designs for specific requirements
  • Flatness after coating: our optics are characterised by the highest degree of flatness after coating for ultimate wavefront performance

Specifications

UV Fused Silica, Diameter Tolerance: +0/-0.25mm, >=80% clear aperture, Thickness Tolerance: +/- 5% of thickness (up to 2mm thickness), better than 1 arc sec parallel, λ/20 flatness, 10-5 scratch-dig

We hold stock of 30mm diameter (20mm clear aperture) and larger etalon plates and also carry a vast selection of ready-made spacers in stock.

Standard etalons are uncoated, however we can readily provide coated products.

With our own in-house software we can model the etalon you need to ensure the finished product meets your requirements. Ask us for further details.

PART NUMBER
DIAMETER (D)
THICKNESS (T)
ET-FS-25.4-0.2 25.
25.4mm
0.2mm
ET-FS-25.4-0.3 25.
25.4mm
0.3mm
ET-FS-25.4-0.5 25.
25.4mm
0.5mm
ET-FS-25.4-1.0 25.
25.4mm
1.0mm
ET-FS-25.4-2.0 25.
25.4mm
2.0mm