Fabry Perot (F-P) interferometer/etalon 2.5-14um/1.3-2.0um

The Fabry-P é rot interferometer is a multi beam interferometer composed of two parallel glass plates. The inner surfaces of the two glass plates facing each other have high reflectivity. When two glass plates are fixed with hollow spacers of fixed length, it is also called a Fabry Perot standard or simply referred to as a standard. The F-P (Fabry Perot) standard is a high-resolution spectroscopic instrument due to its high reflectivity of flat plates and extremely narrow oblique interference fringes of multiple beams. Can be used for high-resolution spectroscopy and studying spectral lines with very close wavelengths, such as isotope spectra of elements, hyperfine structures of spectra, small frequency shifts in light scattering, Doppler shifts in spectral lines caused by atomic movement, and structural shapes inside spectral lines; It can also be used as a high-resolution optical filter and for constructing precision wavelength meters; In laser systems, it is often used to compress narrow spectral lines inside the cavity or to operate the laser system in a single mode. It can be used as a bandwidth control and tuning device in broadband picosecond lasers to analyze and detect the spectral (longitudinal and transverse) components in the lase