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physics.optics2026
Free-running single-cavity dual combs with Hz-level relative linewidth
Yuan Chen, Ming Yan, Jia Xu +7
Single-cavity dual-comb lasers provide a compact and efficient source for dual-comb spectroscopy in gas sensing applications; however, achieving sufficient free-running mutual cohe…
physics.optics2026
Kramers-Kronig causality in integrated photonics: The spectral tension between ultraviolet transition and mid-infrared absorption
Yue Hu, Zhenyuan Shang, Chenxi Zhang +12
Dispersion engineering via geometric confinement is essential to integrated photonics, enabling phenomena such as soliton microcombs, supercontinua, parametric oscillators, and ent…
physics.optics2026
Photonic timing-engineered solitons for dual-microcomb metrology
Zihao Wang, Guoliang Li, Changrui Liu +5
Dissipative microcavity solitons offer a route to integrate comb-based metrology systems on photonic chips. However, integrated solitons generally lack agile control of comb parame…