Hybrid integrated laser with moderate-Q lithium niobate cavity and synthetic feedback achieves 29 Hz linewidth, sub-exahertz/s tuning, 0.14% chirp nonlinearity, enabling 1.7e-4 relative ranging precision in FMCW LiDAR at 1 MSa/s and sub-microstrain acoustic sensing.
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Overcoming noise-agility trade-off in integrated lasers for precision sensing
Hybrid integrated laser with moderate-Q lithium niobate cavity and synthetic feedback achieves 29 Hz linewidth, sub-exahertz/s tuning, 0.14% chirp nonlinearity, enabling 1.7e-4 relative ranging precision in FMCW LiDAR at 1 MSa/s and sub-microstrain acoustic sensing.