Based on Photop Optics' unique manufacturing process, optical bonding & Epoxy-free package technologies and advanced test equipment, the cutting edge optic contact air-space Etalon, significantly improve thermal stability and the reliability performance.

Air-space Etalons, with the features of low wavefront distortion, low insertion loss, easy tuning etc, are widely applied in fiber communications, laser cavity, testing and measurement instrument, etc..

Photop Optics' unique, thermally insensitive and optical contact Air-spaced and Solid Etalon designed with special partial reflecting coatings and AR coatings result in improved transmission. And our etalons are available in a wide range of FSR values from 10GHz and 2000GHz with high precision tolerance.