Kerry J. Vahala
Ted and Ginger Jenkins Professor of Information Science and Technology and Applied Physics
Research interests: high-Q optical microresonators and their applications including integrated optical time standards and frequency synthesizers, soliton astro combs for exoplanet discovery, high-coherence lasers on-a-chip, frequency microcombs, optical microwave sources, optical reference cavities, cavity optomechanics.
Overview
Kerry Vahala has pioneered nonlinear optics in high-Q optical microresonators, creating a new field in modern photonics. His research group launched many of the core directions that now define this area and created optical resonators that hold the record for the highest optical quality factors ever achieved on a semiconductor chip. Leveraging these devices, Vahala has opened new regimes of nonlinear physics and enabled a wide range of transformative applications.
His work includes the first demonstration of parametric oscillation and cascaded four-wave mixing in a microcavity—the central regeneration mechanisms underlying optical frequency microcombs—as well as the invention of electro-optical frequency division, now used in the world's most stable commercial K-band oscillators. He also led the first observation of dynamic back-action in cavity optomechanical systems, helping to launch an entire subfield at the interface of optics and mechanics.
Vahala's microresonator technologies are integral to chip-scale demonstrations of optical clocks and frequency synthesizers at the National Institute of Standards and Technology, and they have been deployed at the Keck II Observatory in Hawaii as miniature astrocombs in the search for exoplanets. His current research focuses on extending high-Q microresonators to miniature precision-metrology systems and to the realization of monolithic optical gyroscopes capable of detecting Earth's rotation on a chip.
Earlier in his career, Professor Vahala also played a central role in the development of quantum-well lasers for optical communications—work that laid the foundation for nearly all modern high-speed semiconductor laser designs used in metropolitan and local-area fiber-optic networks.
Related News
Read more newsPublications
Towards fibre-like-loss for photonic integration from violet to near-IR, Hao-Jing Chen, Kellan Colburn, Peng Liu, Hongrui Yan, Hanfei Hou, Jinhao Ge, Jin-Yu Liu, Phineas Lehan, Qing-Xin Ji, Zhiquan Yuan, Dirk Bouwmeester, Christopher Holmes, James Gates, Henry Blauvelt and Kerry Vahala, Nature , vol 649, 338 (2026).
Separable integrated frequency control of a microcomb, JY Liu, H Tian, QX Ji, S Sun, W Zhang, J Guo, W Jin, JE Bowers, Andrey B Matsko, Mohammad Mirhosseini, Kerry J Vahala, Optica 12 (9), 1350-1356 (2025).
Efficient and wavelength-tunable second-harmonic generation toward the green gap, Z Yuan, J Ge, P Liu, B Li, M Li, JY Liu, Y Yu, HJ Chen, J Bowers, K Vahala, Science Advances 11 (27), eadw2781 (2025).
Spiral resonator referenced low noise microwave generation via integrated optical frequency division, L Cheng, M Zhao, Y He, Y Zhang, R Meade, K Vahala, M Zhang, J Li, Photonics Research 13 (7), 1991-1996 (2025).
Harnessing micro-Fabry–Pérot reference cavities in photonic integrated circuits, H Cheng, C Xiang, N Jin, I Kudelin, J Guo, M Heyrich, Y Liu, J Peters, Qing-Xin Ji, Yishu Zhou, Kerry J Vahala, Franklyn Quinlan, Scott A Diddams, John E Bowers, Peter T Rakich, Nature Photonics, 1-7 (2025).
Dispersive-wave-agile optical frequency division, QX Ji, W Zhang, A Savchenkov, P Liu, S Sun, W Jin, J Guo, J Peters, L Wu, Avi Feshali, Mario Paniccia, Vladimir Ilchenko, John Bowers, Andrey Matsko, Kerry Vahala, Nature Photonics, 1-6 (2025).
Near-visible integrated soliton microcombs with detectable repetition rates, P Liu, QX Ji, JY Liu, J Ge, M Li, J Guo, W Jin, M Gao, Y Yu, A Feshali, Mario Paniccia, John E Bowers, Kerry J Vahala, Nature Communications 16 (1), 4780 (2025).
Down-converted photon pairs in a high-Q silicon nitride microresonator, B Li, Z Yuan, J Williams, W Jin, A Beckert, T Xie, J Guo, A Feshali, Mario Paniccia, Andrei Faraon, John Bowers, Alireza Marandi, Kerry Vahala, Nature, 639 (8056), 922-927 (2025).
Efficient microresonator frequency combs, QF Yang, Y Hu, V Torres-Company, K Vahala, Nature eLight 4 (1), 18 (2024).
Photonic millimeter-wave generation beyond the cavity thermal limit, W Groman, I Kudelin, A Lind, D Lee, T Nakamura, Y Liu, ML Kelleher, Charles A McLemore, Joel Guo, Lue Wu, Warren Jin, Kerry J Vahala, John E Bowers, Franklyn Quinlan, Scott A Diddams, Optica 11 (11), 1583-1587 (2024).
Coherent optical-to-microwave link using an integrated microcomb, QX Ji, W Zhang, L Wu, W Jin, J Guo, A Feshali, M Paniccia, J Bowers, Andrey Matsko, Kerry Vahala, IEEE Journal of Selected Topics in Quantum Electronics, 30, 5 (2024).
Chip-scale high-performance photonic microwave oscillator, Y He, L Cheng, H Wang, Y Zhang, R Meade, K Vahala, M Zhang, J Li, Science Advances 10 (33), eado9570 (2024).
Observation of interband Kelly sidebands in coupled-ring soliton microcombs, M Gao, Z Yuan, Y Yu, W Jin, QX Ji, J Ge, A Feshali, M Paniccia, John E Bowers, Kerry J Vahala, Optica 11 (7), 940-944 (2024).
Photonic chip-based low-noise microwave oscillator, I Kudelin, W Groman, QX Ji, J Guo, ML Kelleher, D Lee, T Nakamura, Charles A McLemore, Pedram Shirmohammadi, Samin Hanifi, Haotian Cheng, Naijun Jin, Lue Wu, Samuel Halladay, Yizhi Luo, Zhaowei Dai, Warren Jin, Junwu Bai, Yifan Liu, Wei Zhang, Chao Xiang, Lin Chang, Vladimir Iltchenko, Owen Miller, Andrey Matsko, Steven M Bowers, Peter T Rakich, Joe C Campbell, John E Bowers, Kerry J Vahala, Franklyn Quinlan, Scott A Diddams, Nature 627 (8004), 534-539 (2024).
QX Ji, P Liu, W Jin, J Guo, L Wu, Z Yuan, J Peters, A Feshali, M Paniccia, J Bowers, K. Vahala, Multimodality integrated microresonators using the Moiré speedup effect, Science 383 (6687), 1080-1083 (2024).
Z Yuan, M Gao, Y Yu, H Wang, W Jin, QX Ji, A Feshali, M Paniccia, J Bowers, K Vahala, Soliton pulse pairs at multiple colours in normal dispersion microresonators, Nature Photonics 17 (11), 977-983, (2023)
N Jovanovic, P Gatkine, N Anugu, R Amezcua-Correa, RB Thakur, ..., 2023 Astrophotonics Roadmap: pathways to realizing multi-functional integrated astrophotonic instruments, Journal of Physics: Photonics 5 (4), 042501, (2023)
B Li, Z Yuan, W Jin, L Wu, J Guo, QX Ji, A Feshali, M Paniccia, JE Bowers, K Vahala, High-coherence hybrid-integrated 780 nm source by self-injection-locked second-harmonic generation in a high-Q silicon-nitride resonator, Optica 10 (9), 1241-1244 (2023)
C Xiang, W Jin, O Terra, B Dong, H Wang, L Wu, J Guo, TJ Morin, EHughes, J Peters, QX Ji, A Feshali, M Paniccia, K Vahala & J Bowers, 3D integration enables ultralow-noise isolator-free lasers in silicon photonics, Nature 620 (7972), 78-85 (2023)
L Wu, W Xie, HJ Chen, K Colburn, C Xiang, L Chang, W Jin, JY Liu, Y Yu, HJ Chen, Y Yamamoto, J Bowers, K Vahala, and MG Suh, AlGaAs soliton microcombs at room temperature, Optics Letters 48 (15), 3853-3856 (2023)
L Wu, M Gao, JY Liu, HJ Chen, K Colburn, HA Blauvelt, KJ Vahala, Hydroxyl ion absorption in on-chip high-Q resonators, Optics Letters 48 (13), 3511-3514 (2023)
Y He, R Lopez-Rios, UA Javid, J Ling, M Li, S Xue, K Vahala, Q Lin, High-speed tunable microwave-rate soliton microcomb, Nature Communications 14 (1), 3467 (2023)
J Ling, J Staffa, H Wang, B Shen, L Chang, UA Javid, L Wu, Z Yuan, R Lopez-Rios, M Li, Y He, B Li, J Bowers, K Vahala, Q Lin, Self‐Injection Locked Frequency Conversion Laser, Laser & Photonics Reviews 17 (5), 2200663 (2023)
QX Ji, W Jin, L Wu, Y Yu, Z Yuan, W Zhang, M Gao, B Li, H Wang, C Xiang, J Guo, A Feshali, M Paniccia, V Ilchenko, A Matsko, J, K Vahala, Engineered zero-dispersion microcombs using CMOS-ready photonics, Optica 10 (2), 279-285 (2023).
J Li and K Vahala, Small-sized, ultra-low phase noise photonic microwave oscillators at X-Ka bands, Optica 10 (1), 33-34 (2023)
H Wang, B Shen, Y Yu, Z Yuan, C Bao, W Jin, L Chang, MA Leal, A Feshali, M Paniccia, J Bowers , K Vahala, Self-regulating soliton switching waves in microresonators, Physical Review A 106 (5), 053508 (2022)
J Guo, CA McLemore, C Xiang, D Lee, L Wu, W Jin, M Kelleher, N Jin, D Mason, L Chang, A Feshali, M Paniccia, P Rakich, K Vahala, S Diddams, F Quinlan, J Bowers, Chip-based laser with 1-Hertz integrated linewidth, Science Advances 8 (43), eabp9006 (2022)
MA Tran, C Zhang, TJ Morin, L Chang, S Barik, Z Yuan, W Lee, G Kim, A Malik, Z Zhang, J Guo, H Wang, B Shen, L Wu, K Vahala, J Bowers, H Park, T Komljenovic, Extending the spectrum of fully integrated photonics to sub micrometre wavelengths, Nature 610 (7930), 54-60 (2022)
M Li, L Chang, L Wu, J Staffa, J Ling, UA Javid, S Xue, Y He, R Lopez-rios, T Morin, H Wang, B Shen, S Zeng, L Zhu, K Vahala, J Bowers, Q Lin, Integrated pockels laser, Nature communications 13 (1), 5344 (2022)
MF Kassis, S Allen, C Alvarez, R Banyal, R Bertz, C Beichman, A Brown, ..., Innovations and advances in instrumentation at the WM Keck Observatory, vol. II Ground-based and Airborne Instrumentation for Astronomy IX 12184, 19-38 (2022)
Zhiquan Yuan, Heming Wang, Peng Liu, Bohan Li, Boqiang Shen, Maodong Gao, Lin Chang, Warren Jin, Avi Feshali, Mario Paniccia, John Bowers and Kerry J. Vahala, "Correlated self-heterodyne method for ultra-low-noise laser linewidth measurements" Optics Express 30 (14) 25147-25161 (2022)
Yu-Hung Lai, Zhiquan Yuan, Myoung-Gyun Suh, Yu-Kun Lu, Heming Wang and Kerry J. Vahala, "Brillouin Backaction Thermometry for Modal Temperature Control" Optica 9 (7) 701-705 (2022)
Maodong Gao, Qi-Fan Yang, Qing-Xin Ji, Heming Wang, Lue Wu, Boqiang Shen, Junqiu Liu, Guanhao Huang, Lin Chang, Weiqiang Xie, Su-Peng Yu, Scott B. Papp, John E. Bowers, Tobias J. Kippenberg, Kerry J. Vahala, "Probing material absorption and optical nonlinearity of integrated photonic materials" Nature Communications 13, 3323 (2022)
Jiang Li, Chengying Bao, Qing-Xin Ji, Heming Wang, Lue Wu, Stephanie Leifer, Charles Beichman, and Kerry Vahala, "Efficiency of pulse pumped soliton microcombs" Optica 9, 231-239 (2022)
Chao Xiang, Joel Guo, Warren Jin, Lue Wu, Jonathan Peters, Weiqiang Xie, Lin Chang, Boqiang Shen, Heming Wang, Qi-Fan Yang, David Kinghorn, Mario Paniccia, Kerry J. Vahala, Paul A. Morton and John E. Bowers, "High-performance lasers for fully integrated silicon nitride photonics", Nature Communications 12, 6650 (2021)
Chengying Bao, Zhiquan Yuan, Lue Wu, Myoung-Gyun Suh, Heming Wang, Qiang Lin and Kerry J. Vahala, "Architecture for microcomb-based GHz-mid-infrared dual-comb spectroscopy" Nature Communications 12, 6573 (2021)
Bohan Li, Warren Jin, Lue Wu, Lin Chang, Heming Wang, Boqiang Shen, Zhiquan Yuan, Avi Feshali, Mario Paniccia, Kerry J. Vahala, and John E. Bowers, "Reaching fiber-laser coherence in integrated photonics", Optics Letters 46, 5201 (2021)
Mikael Mazur, Myoung-Gyun Suh, Attila Fülöp, Jochen Schröder, Victor Torres-Company, Magnus Karlsson, Kerry J. Vahala and Peter A. Andrekson "High spectral efficiency coherent superchannel transmission with soliton microcombs ", Journal of Lightwave Technology 39, 4367 (2021)
Qi-Fan Yang, Qing-Xin Ji, Lue Wu, Boqiang Shen, Heming Wang, Chengying Bao, Zhiquan Yuan and Kerry J. Vahala, "Dispersive-wave induced noise limits in miniature soliton microwave sources" Nature Communications 12, 1442 (2021)
W Jin, QF Yang, L Chang, B Shen, H Wang, MA Leal, L Wu, A Feshali, M Paniccia, KJ Vahala, JE Bowers, "Hertz-linewidth semiconductor lasers using CMOS-ready Ultra-High-Q microresonators," Nature Photonics, doi.org/10.1038/s41566-021-00761-7 (2021).
C Bao, MG Suh, B Shen, K Şafak, A Dai, H Wang, L Wu, Z Yuan, QF Yang, AB Matsko, FX Kärtner, KJ Vahala "Quantum diffusion of microcavity solitons," Nature Physics, doi.org/10.1038/s41567-020-01152-5 (2021)
C Bao, B Shen, MG Suh, H Wang, K Şafak, A Dai, AB Matsko, FX Kärtner, K Vahala" Oscillatory motion of a counterpropagating Kerr soliton dimer," Physical Review A 103 (1), L011501 (2020)
H Wang, YK Lu, L Wu, DY Oh, B Shen, SH Lee, K Vahala, "Dirac solitons in optical microresonators," Light: Science & Applications, 9 (1), 1-15 (2020)
Z Yuan, H Wang, L Wu, M Gao, K Vahala, "Linewidth enhancement factor in a microcavity Brillouin laser," Optica 7 (9), 1150-1153 (2020)
L Wu, H Wang, Q Yang, Q Ji, B Shen, C Bao, M Gao, K Vahala, "Greater than one billion Q factor for on-chip microresonators," Optics Letters 45 (18), 5129-5131(2020)
SA Diddams, K Vahala, T Udem, "Optical frequency combs: Coherently uniting the electromagnetic spectrum," Science369, eaay3676 (2020)
Boqiang Shen, Lin Chang, Junqiu Liu, Heming Wang, Qi-Fan Yang, Chao Xiang, Rui Ning Wang, Jijun He, Tianyi Liu, Weiqiang Xie, Joel Guo, Dave Kinghorn, Lue Wu, Qing-Xin Ji, Tobias J. Kippenberg, Kerry Vahala, John E. Bowers, "Integrated turnkey soliton microcombs operated at CMOS frequencies", Nature, 582, 365-369 (2020)
Chengying Bao, Zhiquan Yuan, Heming Wang, Lue Wu, Boqiang Shen, Keeyoon Sung, Stephanie Leifer, Qiang Lin, and Kerry Vahala, "Interleaved difference-frequency generation for microcomb spectral densification in the mid-infrared" Optica 7 (4), 309-315 (2020)
Heming Wang, Yu-Hung Lai, Zhiquan Yuan, Myoung-Gyun Suh, Kerry Vahala "Petermann-factor limited sensing near an exceptional point", Nature Communications 11, 1610 (2020)
Lin Chang, Weiqiang Xie, Haowen Shu, Qifan Yang, Boqiang Shen, Andreas Boes, Jon D. Peters, Warren Jin, Songtao Liu, Gregory Moille, Su-Peng Yu, Xingjun Wang, Kartik Srinivasan, Scott B. Papp, Kerry Vahala, John E. Bowers, "Ultra-efficient frequency comb generation in AlGaAs-on-insulator microresonators", Nature Communications 11, 1331 (2020)
Liron Stern, Jordan R. Stone, Songbai Kang, Daniel C. Cole, Myoung-Gyun Suh, Connor Fredrick, Zachary Newman, Kerry Vahala, John Kitching, Scott A Diddams, Scott B. Papp, "Direct Kerr frequency comb atomic spectroscopy and stabilization", Science Advances 6 (9), eaax6230 (2020)
Yu-Hung Lai, Myoung-Gyun Suh, Yu-Kun Lu, Boqiang Shen, Qi-Fan Yang, Heming Wang, Jiang Li, Seung Hoon Lee, Ki Youl Yang, Kerry Vahala "Earth rotation measured by a chip-scale ring laser gyroscope", Nature Photonics (2020)
Yu-Hung Lai, Yu-Kun Lu, Myoung-Gyun Suh, Zhiquan Yuan, Kerry Vahala, "Observation of the exceptional-point-enhanced Sagnac effect", Nature 576, 65–69 (2019)
Yang He, Qi-Fan Yang, Jingwei Ling, Rui Luo, Hanxiao Liang, Mingxiao Li, Boqiang Shen, Heming Wang, Kerry Vahala, Qiang Lin, "Self-starting bi-chromatic LiNbO3 soliton microcomb", Optica 6 (9), 1138-1144 (2019)
Chengying Bao, Myoung-Gyun Suh, Kerry Vahala "Microresonator soliton dual-comb imaging", Optica 6 (9), 1110-1116 (2019)
Zachary L. Newman, Vincent Maurice, Tara Drake, Jordan R. Stone, Travis C. Briles, Daryl T. Spencer, Connor Fredrick, Qing Li, Daron Westly, B. R. Ilic, Boqiang Shen, Myoung-Gyun Suh, Ki Youl Yang, Cort Johnson, David M. S. Johnson, Leo Hollberg, Kerry J. Vahala, Kartik Srinivasan, Scott A. Diddams, John Kitching, Scott B. Papp, and Matthew T. Hummon, "Architecture for the photonic integration of an optical atomic clock", Optica 6 (5), 680-685 (2019)
Myoung-Gyun Suh, Christine Y. Wang, Cort Johnson, Kerry J. Vahala "Directly pumped 10 GHz microcomb modules from low-power diode lasers" Optics Letters 44 (7), 1841-1843 (2019)
Qi-Fan Yang, Boqiang Shen, Heming Wang, Minh Tran, Zhewei Zhang, Ki Youl Yang, Lue Wu, Chengying Bao, John Bowers, Amnon Yariv, Kerry Vahala, "Vernier spectrometer using counterpropagating soliton microcombs," Science 363, 6430, 965-968 (2019)
Myoung-Gyun Suh, Xu Yi, Yu-Hung Lai, S. Leifer, Ivan S. Grudinin, G. Vasisht, Emily C. Martin, Michael P. Fitzgerald, G. Doppmann, J. Wang, D. Mawet, Scott B. Papp, Scott A. Diddams, C. Beichman & Kerry Vahala, "Searching for exoplanets using a microresonator astrocomb," Nature Photonics, 13, 25–30 (2019)
John D. Monnier, Stefan Kraus, Michael J. Ireland, Fabien Baron, Amelia Bayo, Jean-Philippe Berger, Michelle Creech-Eakman, Ruobing Dong, Gaspard Duchene, Catherine Espaillat, Chris Haniff, Sebastian H ̈onig, Andrea Isella, Attila Juhasz, Lucas Labadie, Sylvestre Lacour, Stephanie Leifer, Antoine Merand, Ernest Michael, Stefano Minardi, Christoph Mordasini, David Mozurkewich, Johan Olofsson, Claudia Paladini, Romain Petrov, J ̈org-Uwe Pott, Stephen Ridgway, Stephen Rinehart, Keivan Stassun, Jean Surdej, Theo ten Brummelaar, Neal Turner, Peter Tuthill, Kerry Vahala, Gerard van Belle, Gautam Vasisht, Ed Wishnow, John Young, Zhaohuan Zhu, "The planet formation imager," Experimental Astronomy, 46, 3, 517-529 (2018)
Daniel C. Cole, Jordan R. Stone, Miro Erkintalo, Ki Youl Yang, Xu Yi, Kerry J. Vahala, and Scott B. Papp, "Kerr-microresonator solitons from a chirped background," Optica, 5, 10, 1304-1310 (2018)
Xu Yi, Qi-Fan Yang, Ki Youl Yang & Kerry Vahala," Imaging soliton dynamics in optical microcavities," Nature Communications 9, 3565 (2018)
Xinbai Li, Boqiang Shen, Heming Wang, Ki Youl Yang, Xu Yi, Qi-Fan Yang, Zhiping Zhou, and Kerry Vahala, "Universal isocontours for dissipative Kerr solitons," Optics Letters 43, 11, 2567-2570 (2018)
Daryl T. Spencer, Tara Drake, Travis C. Briles, Jordan Stone, Laura C. Sinclair, Connor Fredrick, Qing Li, Daron Westly, B. Robert Ilic, Aaron Bluestone, Nicolas Volet, Tin Komljenovic, Lin Chang, Seung Hoon Lee, Dong Yoon Oh, Myoung-Gyun Suh, Ki Youl Yang, Martin H. P. Pfeiffer, Tobias J. Kippenberg, Erik Norberg, Luke Theogarajan, Kerry Vahala, Nathan R. Newbury, Kartik Srinivasan, John E. Bowers, Scott A. Diddams & Scott B. Papp, "An optical-frequency synthesizer using integrated photonics," Nature 557, 81–85 (2018)
Nicolas Volet, Xu Yi, Qi-Fan Yang, Eric J. Stanton, Paul A. Morton, Ki Youl Yang, Kerry J. Vahala, and John E. Bowers, "Micro-Resonator Soliton Generated Directly with a Diode Laser," Laser & Photonics Review 12, 5, 1700307 (2018)
Ki Youl Yang, Dong Yoon Oh, Seung Hoon Lee, Qi-Fan Yang, Xu Yi, Boqiang Shen, Heming Wang & Kerry Vahala, "Bridging ultrahigh-Q devices and photonic circuits," Nature Photonics, 12, 297–302 (2018)
Myoung-Gyun Suh and Kerry J. Vahala, "Soliton microcomb range measurement," Science 359, 6378, 884-887 (2018)
Myoung-Gyun Suh and Kerry Vahala, "Gigahertz-repetition-rate soliton microcombs," Optica 5, 1, 65-66 (2018)
Seung Hoon Lee, Dong Yoon Oh, Qi-Fan Yang, Boqiang Shen, Heming Wang, Ki Youl Yang, Yu-Hung Lai, Xu Yi, Xinbai Li & Kerry Vahala, "Towards visible soliton microcomb generation," Nature Communications 8, 1295 (2017)
Myoung-Gyun Suh, Qi-Fan Yang, and Kerry J. Vahala, "Phonon-Limited-Linewidth of Brillouin Lasers at Cryogenic Temperatures," Phys. Rev. Lett. 119, 143901 (2017)
Yu-Hung Lai, Ki Youl Yang, Myoung-Gyun Suh, and Kerry J. Vahala, "Fiber taper characterization by optical backscattering reflectometry," Optics Express 25, 19, 22312-22327 (2017)
Qi-Fan Yang, Xu Yi, Ki Youl Yang & Kerry Vahala, "Counter-propagating solitons in microresonators," Nature Photonics11, 560–564 (2017)
Xu Yi, Qi-Fan Yang, Xueyue Zhang, Ki Youl Yang, Xinbai Li & Kerry Vahala, "Single-mode dispersive waves and soliton microcomb dynamics," Nature Communications 8, 14869 (2017)
Jiang Li, Myoung-Gyun Suh, and Kerry Vahala, "Microresonator Brillouin gyroscope," Optica 4, 3, 346-348 (2017)
Dong Yoon Oh, Ki Youl Yang, Connor Fredrick, Gabriel Ycas, Scott A. Diddams & Kerry J. Vahala, "Coherent ultra-violet to near-infrared generation in silica ridge waveguides," Nature Communications 8, 13922 (2017)
Qi-Fan Yang, Xu Yi, Ki Youl Yang & Kerry Vahala, "Stokes solitons in optical microcavities," Nature Physics 13, 53–57 (2017)
Myoung-Gyun Suh, Qi-Fan Yang, Ki Youl Yang, Xu Yi, Kerry J. Vahala, "Microresonator soliton dual-comb spectroscopy," Science 354 6312, 600-603 (2016)
Qi-Fan Yang, Xu Yi, Ki Youl Yang, and Kerry Vahala, "Spatial-mode-interaction-induced dispersive waves and their active tuning in microresonators," Optica 3, 10, 1132-1135 (2016)
Pascal Del'Haye, Aurélien Coillet, Tara Fortier, Katja Beha, Daniel C. Cole, Ki Youl Yang, Hansuek Lee, Kerry J. Vahala, Scott B. Papp & Scott A. Diddams, "Phase-coherent microwave-to-optical link with a self-referenced microcomb," Nature Photonics 10, 516–520 (2016)
Xu Yi, Qi-Fan Yang, Ki Youl Yang, and Kerry Vahala, "Theory and measurement of the soliton self-frequency shift and efficiency in optical microcavities," Optics Letters 41, 15, 3419-3422 (2016)
Ki Youl Yang, Katja Beha, Daniel C. Cole, Xu Yi, Pascal Del'Haye, Hansuek Lee, Jiang Li, Dong Yoon Oh, Scott A. Diddams, Scott B. Papp & Kerry J. Vahala, "Broadband dispersion-engineered microresonator on a chip," Nature Photonics 10, 316–320 (2016)
Xu Yi, Qi-Fan Yang, Ki Youl Yang, and Kerry Vahala, "Active capture and stabilization of temporal solitons in microresonators," Optics Letters 41, 9, 2037-2040 (2016)
X. Yi, K. Vahala, J. Li, S. Diddams, G. Ycas, P. Plavchan, S. Leifer, J. Sandhu, G. Vasisht, P. Chen, P. Gao, J. Gagne, E. Furlan, M. Bottom, E. C. Martin, M. P. Fitzgerald, G. Doppmann & C. Beichman, "Demonstration of a near-IR line-referenced electro-optical laser frequency comb for precision radial velocity measurements in astronomy," Nature Communications 7, 10436 (2016)
Xu Yi, Qi-Fan Yang, Ki Youl Yang, Myoung-Gyun Suh, and Kerry Vahala, "Soliton frequency comb at microwave rates in a high-Q silica microresonator," Optica 2,12. 1078-1085 (2015)