Fabry-Perot Interferometer

(Projection Based) MODEL FPI-78 In a Fabry–Perot interferometer, the distance between two partially reflecting mirrors is precisely controlled using a combination of coarse and fine translation stages, typically driven by micrometres. One mirror (or beam splitter) is fixed, while the other is mounted on a translation stage via a two-axis kinematic mount. This mount allows for fine adjustments in tilt to ensure the mirrors remain parallel, which is critical for accurate interference measurements.