Fabry-Perot etalons are made up of two parallel partially reflecting mirrors facing each other. The interference created by the mirrors acts as a filter which transmit only a series of resonnance peaks evenly distanced in frequency domain. The distance between mirrors defines the distance between peaks in frequency domain, while mirrors reflectivity define peaks width. High quality polishing (λ/20) ...
Fiber Pigtailed Fabry-Perot Etalons consist of a solid or air gap etalon, collimating lenses and input/output fibers. They can be made for different spectral window (UV, VIS, IR) dependent on the specific application. The solid etalon is made of optical quality glass (fused silica, BK7...) while air spaced etalons are built on ...
