Ke Yin
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Multimodal locking-enabled robust and day-scale low-repetition-rate soliton microcomb for high-precision metrology
Abstract Chip-scale soliton microcombs, particularly those operating at low, electronically detectable repetition rates (≤ 26.5 GHz), are highly promising for portable metrology. However, their practical deployment has been critically hindered by poor robustness against intracavity noise and environmental perturbations.
Overcoming the thermo-refractive noise limit for a full-spectrum Hertz-linewidth microcomb
Abstract Chip-scale microcombs combining high repetition rates and Hertz-level linewidths are critical for precision measurements and parallel coherent communications. Self-injection locking (SIL) has been widely used but faces a fundamental limitation: the microresonator must simultaneously generate the comb and suppress noise, creating a coherence ceiling set by thermo-refractive noise (TRN). This imposes a fundamental trade-off between repetition rate and linewidth.
Critical point–based wireless sensors enabling tiny perturbation detection
Abstract INTRODUCTION RESULTS DISCUSSION MATERIALS AND METHODS Acknowledgments Supplementary Materials REFERENCES Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract High quality factor and sensitivity are critical to wireless sensors targeting small perturbation detection. Although introducing parity-time symmetric dynamics promises enhanced performance, the symmetric scheme often yields limited sensing behaviors.
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