Author Affiliations

Qing-Xin Ji,^1,* Warren Jin,^2,4,* Lue Wu,^1,* Yan Yu,^1,* Zhiquan Yuan,¹ Wei Zhang,³ Maodong Gao,¹ Bohan Li,¹ Heming Wang,^1,2 Chao Xiang,² Joel Guo,² Avi Feshali,⁴ Mario Paniccia,⁴ Vladimir Ilchenko,³ Andrey Matsko,³ John Bowers,² and Kerry Vahala¹

¹T. J. Watson Laboratory of Applied Physics, California Institute of Technology, Pasadena, CA 91125, USA

²Department of Electrical and Computer Engineering, University of California, Santa Barbara, Santa Barbara, California 93106, USA

³Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109-8099, USA

⁴Anello Photonics, Santa Clara, CA, USA

^*These authors contributed equally to this work.