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On-chip dual comb source for spectroscopy
Avik Dutt, Chaitanya Joshi, Xingchen Ji +5
Dual-comb spectroscopy is a powerful technique for real-time, broadband optical sampling of molecular spectra which requires no moving components. Recent developments with microres…
Dynamics of mode-coupling-induced microresonator frequency combs in normal dispersion
Jae K. Jang, Yoshitomo Okawachi, Mengjie Yu +4
We experimentally and theoretically investigate the dynamics of microresonator-based frequency comb generation assisted by mode coupling in the normal group-velocity dispersion (GV…
Silicon-chip-based mid-infrared dual-comb spectroscopy
Mengjie Yu, Yoshitomo Okawachi, Austin G. Griffith +3
On-chip spectroscopy that could realize real-time fingerprinting with label-free and high-throughput detection of trace molecules is one of the 'holy grails" of sensing. Such minia…
Breaking the Loss Limitation of On-chip High-confinement Resonators
Xingchen Ji, Felippe A. S. Barbosa, Samantha P. Roberts +6
On-chip optical resonators have the promise of revolutionizing numerous fields including metrology and sensing; however, their optical losses have always lagged behind their larger…
Breather soliton dynamics in microresonators
Mengjie Yu, Jae K. Jang, Yoshitomo Okawachi +6
The generation of temporal cavity solitons in microresonators results in low-noise optical frequency combs which are critical for applications in spectroscopy, astronomy, navigatio…
Modelocked mid-infrared frequency combs in a silicon microresonator
Mengjie Yu, Yoshitomo Okawachi, Austin G. Griffith +2
Mid-infrared (mid-IR) frequency combs have broad applications in molecular spectroscopy and chemical/biological sensing. Recently developed microresonator-based combs in this wavel…