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 |