etalons for precision wavelength control
Our etalons for precision wavelength control deliver exceptional precision and versatility, selectivity and versatility and superior flatness after coating for peak performance. They are suitable for a wide range of applications, including spectroscopy, laser wavelength control, and optical filtering. We offer Coated and uncoated etalons.
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 |