General Optics has reintroduced its line of solid etalon products for use in R&D and new OEM product designs.

General Optics patented process uses our proprietary superpolishing techniques for creating optical surfaces with roughness levels less then 1A RMS. This is combined with the use of our MRF (Magnetorheological Finishing) machines and SWS (Swept Wavelength laser System) enabling the precise control of thickness across the etalon surface to levels of better than 2nm/mm.

We complete the etalon production process using our IBS coating chambers to deposit HR and PR films with excellent density and minimum surface stress. Typical HR performances of better than 99.998% at any wavelengths within the C & L bands are possible.

In addition, General Optics has the capability to contact bond multiple solid etalon plates together to form multi-cavity etalon components. We can build etalon plates in sizes up to 100mm diameter and provide full plates or individual components diced or core drilled to size.

Typical FSR’s matching the ITU channel spacing 25, 50, 100, and 200 GHz can be provided. We also have the capability to provide etalons with custom FSR values from 2 GHz - 300 GHz. Our processes are designed for high volume production to support OEM requirements and we have experience supporting rapid production ramp plans.

Products
Typical wavelength range: Sizes:   Thickness: Parallelism: Typical Substrate Materials: S1, S2 Surface Flatness: Surface Roughness: Scratch/Dig: Center Wavelength Uniformity: HR coating Patented Mfg. Process:	1520nm - 1640nm Wafers to 100mm dia, diced and cored pcs as required 25GHz to 200GHz typical < 1 arcsec Fused silica, silicon, optical glasses < 0.01 lambda @ 633nm over 2.5mm dia CA < 5 Angstroms RMS 10/5 < 0.01nm/mm over CA >99.998% Patents: 663968 and 6819438