Radio frequency tagging optical spectrometer and method for measurements of optical spectra

Abstract

The present disclosure provides a radio frequency tagging optical spectrometer, comprising: a dynamic dispersion device, the dynamic dispersion device receiving a beam comprising more than two wavelength components and being driven by driving radio frequency signals, and the dynamic dispersion device encoding the intensity of each wavelength component into the amplitude of a different beat radio frequency signal based on different driving radio frequency signals, wherein the beat frequency of the different beat radio frequency signal is equal to the frequency of the corresponding driving radio frequency signal; a single-channel photodetector for detecting the sum of beat radio frequency signals formed by adding all the beat radio frequency signals; and a processing unit for performing Fourier transform on the sum of the beat radio frequency signals to obtain a spectrum or an associated radio frequency spectrum by which the optical spectrum is obtained.

Dependencies are inferred from the claim text.