Nature research paper: The time-programmable frequency comb and its use in quantum-limited ranging
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.Range deviation and time deviation of dual-comb range measurements from a fixed reflection for signal-comb powers from 980 nW down to 0.33 pW with the following power levels ± 10%: 980 nW, 190 nW, 86 nW, 38 nW, 21 nW, 9.6 nW, 1.8 nW, 1.2 nW, 390 pW, 200 pW, 89 pW, 33 pW, 23 pW, 8.5 pW, 4.1 pW, 1.9 pW, 990 fW, 550 fW and 330 fW.
Beyond 200-ms, the range deviation increases due to temperature-induced fluctuations in the fibre path up to the fixed reflection. In addition, the deviations for the difference between the absolute range from the tracking comb timing and the relative range from the unwrapped carrier phase shift, from Fig., are shown for the time periods of 60 to 100 seconds at 3.2 pW and 110 seconds to 150 seconds at 32 pW .
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The time-programmable frequency comb and its use in quantum-limited ranging - NatureA self-referenced optical frequency comb with digital electronics is used for real-time attosecond control of the comb’s pulse train, and can be used in quantum-limited sensing.
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