A Farey tree locking method is experimentally implemented to lock the repetition frequency of terahertz quantum cascade laser frequency combs and stabilize the dual-comb operation. A practical GHz ...

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Abstract: Single-cavity dual-comb lasers address the complexity and cost of traditional dual-comb spectroscopy systems. In this study, we present a polarization multiplexed dual-comb Yb:CALGO laser, ...