610 citations · 2.3k across the 21 of their papers we have counts for
21 papers
Multicolor interband solitons in microcombs
Qing-Xin Ji, Hanfei Hou, Jinhao Ge +10
In microcombs, solitons can drive non-soliton-forming modes to induce optical gain. Under specific conditions, a regenerative secondary temporal pulse coinciding in time and space…
Photonic Millimeter-wave Generation Beyond the Cavity Thermal Limit
William Groman, Igor Kudelin, Alexander Lind +11
Next-generation communications, radar and navigation systems will extend and exploit the higher bandwidth of the millimeter-wave domain for increased communication data rates as we…
Dispersive-wave-agile optical frequency division
Qing-Xin Ji, Wei Zhang, Peng Liu +10
The remarkable frequency stability of resonant systems in the optical domain (optical cavities and atomic transitions) can be harnessed at frequency scales accessible by electronic…
Photonic chip-based low noise microwave oscillator
Igor Kudelin, William Groman, Qing-Xin Ji +26
Numerous modern technologies are reliant on the low-phase noise and exquisite timing stability of microwave signals. Substantial progress has been made in the field of microwave ph…
High-coherence hybrid-integrated 780 nm source by self-injection-locked second-harmonic generation in a high-Q silicon-nitride resonator
Bohan Li, Zhiquan Yuan, Warren Jin +7
By self-injection-locking a 1560 nm distributed feedback semiconductor laser to a high- silicon nitride resonator, a high-coherence 780 nm second harmonic signal is generated vi…
OH absorption in on-chip high-Q resonators
Lue Wu, Maodong Gao, Jin-Yu Liu +4
Thermal silica is a common dielectric used in all silicon-photonic circuits. And bound hydroxyl ions (Si-OH) can provide a significant component of optical loss in this material on…
Engineered zero-dispersion microcombs using CMOS-ready photonics
Qing-Xin Ji, Warren Jin, Lue Wu +14
Normal group velocity dispersion (GVD) microcombs offer high comb line power and high pumping efficiency compared to bright pulse microcombs. The recent demonstration of normal GVD…
Three-dimensional integration enables ultra-low-noise, isolator-free Si photonics
Chao Xiang, Warren Jin, Osama Terra +12
While photonic integrated circuits (PICs) are being widely used in applications such as telecommunications and datacenter interconnects, PICs capable of replacing bulk optics and f…
Soliton generation in AlGaAs microresonators at room temperature
Lue Wu, Weiqiang Xie, Chao Xiang +7
Chip-integrated optical frequency combs are attractive optical sources in comb applications requiring high-repetition-rate, low power consumption, or compact size. Spontaneous soli…
Self-injection-locked second-harmonic integrated source
Jingwei Ling, Jeremy Staffa, Heming Wang +12
High coherence visible and near-visible laser sources are centrally important to the operation of advanced position/navigation/timing systems as well as classical/quantum sensing s…
Integrated Pockels Laser
Mingxiao Li, Lin Chang, Lue Wu +14
The development of integrated semiconductor lasers has miniaturized traditional bulky laser systems, enabling a wide range of photonic applications. A progression from pure III-V b…
Chip-Based Laser with 1 Hertz Integrated Linewidth
Joel Guo, Charles A. McLemore, Chao Xiang +14
Lasers with hertz-level linewidths on timescales up to seconds are critical for precision metrology, timekeeping, and manipulation of quantum systems. Such frequency stability typi…
Extending the spectrum of fully integrated photonics
Minh Tran, Chong Zhang, Theodore Morin +15
Integrated photonics has profoundly impacted a wide range of technologies underpinning modern society. The ability to fabricate a complete optical system on a chip offers unrivalle…
Probing material absorption and optical nonlinearity of integrated photonic materials
Maodong Gao, Qi-Fan Yang, Qing-Xin Ji +12
Optical microresonators with high quality () factors are essential to a wide range of integrated photonic devices. Steady efforts have been directed towards increasing microreso…
High-performance lasers for fully integrated silicon nitride photonics
Chao Xiang, Joel Guo, Warren Jin +12
Silicon nitride (SiN) waveguides with ultra-low optical loss enable integrated photonic applications including low noise, narrow linewidth lasers, chip-scale nonlinear photonics, a…
Hertz-linewidth semiconductor lasers using CMOS-ready ultra-high- microresonators
Warren Jin, Qi-Fan Yang, Lin Chang +8
Driven by narrow-linewidth bench-top lasers, coherent optical systems spanning optical communications, metrology and sensing provide unrivalled performance. To transfer these capab…
Quantum diffusion of microcavity solitons
Chengying Bao, Myoung-Gyun Suh, Boqiang Shen +9
Coherently-pumped (Kerr) solitons in an ideal optical microcavity are expected to undergo random quantum motion that determines fundamental performance limits in applications of so…
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…
Phononic band structure engineering for high-Q gigahertz surface acoustic wave resonators on lithium niobate
Linbo Shao, Smarak Maity, Lu Zheng +9
Phonons at gigahertz frequencies interact with electrons, photons, and atomic systems in solids, and therefore have extensive applications in signal processing, sensing, and quantu…
Vernier spectrometer using counter-propagating soliton microcombs
Qi-Fan Yang, Boqiang Shen, Heming Wang +8
Acquisition of laser frequency with high resolution under continuous and abrupt tuning conditions is important for sensing, spectroscopy and communications. Here, a single microres…
Strain engineering of the silicon-vacancy center in diamond
Srujan Meesala, Young-Ik Sohn, Benjamin Pingault +16
We control the electronic structure of the silicon-vacancy (SiV) color-center in diamond by changing its static strain environment with a nano-electro-mechanical system. This allow…