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physics.optics2026
A Portable Optical Frequency Comb with Low Repetition-Rate Drift Based on "Optical Cubes"
Zhendong Chen, Hanbo Xu, Ruoao Yang +6
We demonstrate a compact, fully stabilized, all-polarization-maintaining (all-PM) Er:fiber optical frequency comb (OFC) implemented on a silica optical-cube platform. The optical c…
physics.optics2026
Accurate recovery of the two linewidths hidden in laser beatnote statistics
Jingming Chen, Yuanchen Qi, Yuzheng Pang +12
Photons from ultrastable lasers can remain coherent over distances approaching the Earth-Sun separation, enabling optical clocks projected to lose less than one second over the age…