A feasibility study for self-heterodyne earth satellite dual-comb spectroscopy

We developed a simple model to take into account the refractive index effect on optical path change in multiwavelength Frequency Modulated Continuous Wave (FMCW) Lidar. Then we developed a scheme to use a single optical frequency comb source to perform Dual Comb Spectroscopy (DCS) experiments and finally we extended this scheme for application of DCS on earth-satellite path using the Doppler induced frequency shift to simulate the second comb source. © 2021 SPIE.