Abstract

In this study, we particularly focus on the coherent controllability of optical frequency combs. By appropriately adjusting the four frequency parameters involved in dual-comb spectroscopy, f_rep, Δf_rep, f_ceo, and Δf_ceo, unique and arbitrary coherent modulation schemes can be realized. In a demonstration, the interferogram was successfully modulated by controlling the Δf_ceo. This proof-of-principle experiment will lead to fundamental techniques utilized for coherent spectroscopy using optical frequency combs.

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