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Petermann-factor limited sensing near an exceptional point
Heming Wang, Yu-Hung Lai, Zhiquan Yuan +2
Non-Hermitian Hamiltonians describing open systems can feature singularities called exceptional points (EPs). Resonant frequencies become strongly dependent on externally applied p…
Integrated turnkey soliton microcombs operated at CMOS frequencies
Boqiang Shen, Lin Chang, Junqiu Liu +14
While soliton microcombs offer the potential for integration of powerful frequency metrology and precision spectroscopy systems, their operation requires complex startup and feedba…
Ultra-efficient frequency comb generation in AlGaAs-on-insulator microresonators
Lin Chang, Weiqiang Xie, Haowen Shu +13
Recent advances in nonlinear optics have revolutionized the area of integrated photonics, providing on-chip solutions to a wide range of new applications. Currently, the state of t…
Enhanced sensitivity operation of an optical gyroscope near an exceptional point
Yu-Hung Lai, Yu-Kun Lu, Myoung-Gyun Suh +1
Exceptional points (EPs) are special spectral degeneracies of non-Hermitian Hamiltonians governing the dynamics of open systems. At the EP two or more eigenvalues and the correspon…
Directly pumped 10 GHz microcomb modules from low-power diode lasers
Myoung-Gyun Suh, Christine Y. Wang, Cort Johnson +1
Soliton microcombs offer the prospect of advanced optical metrology and timing systems in compact form factors. In these applications, pumping of microcombs directly from a semicon…