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Ultralow-power chip-based soliton microcombs for photonic integration
Junqiu Liu, Arslan S. Raja, Maxim Karpov +6
The generation of dissipative Kerr solitons in optical microresonators has provided a route to compact frequency combs of high repetition rate, which have already been employed for…
Double inverse nanotapers for efficient light coupling to integrated photonic devices
Junqiu Liu, Arslan S. Raja, Martin H. P. Pfeiffer +5
Efficient light coupling into integrated photonic devices is of key importance to a wide variety of applications. "Inverse nanotapers" are widely used, in which the waveguide width…
Probing the loss origins of ultra-smooth integrated photonic waveguides
Martin H. P. Pfeiffer, Junqiu Liu, Arslan S. Raja +3
On-chip optical waveguides with low propagation losses and precisely engineered group velocity dispersion (GVD) are important to nonlinear photonic devices such as soliton microcom…