Author Affiliations

Joel Guo,^1,* Charles A. McLemore,^2,3,* Chao Xiang,¹ Dahyeon Lee,^2,3 Lue Wu,⁴ Warren Jin,¹ Megan Kelleher,^2,3 Naijun Jin,⁵ David Mason,⁵ Lin Chang,¹ Avi Feshali,⁶ Mario Paniccia,⁶ Peter T. Rakich,⁵ Kerry J. Vahala,⁴ Scott A. Diddams,^2,3,7 Franklyn Quinlan,^2,3 and John E. Bowers¹

¹Department of Electrical and Computer Engineering, University of California Santa Barbara, CA 93106, USA

²National Institute of Standards and Technology, Boulder, CO 80305, USA

³Department of Physics, University of Colorado, Boulder, CO 80309, USA

⁴T. J. Watson Laboratory of Applied Physics, California Institute of Technology, Pasadena, CA 91125, USA

⁵Department of Applied Physics, Yale University, New Haven, CT 06520, USA

⁶Anello Photonics, Santa Clara, CA, USA

⁷Department of Electrical, Computer and Energy Engineering, University of Colorado, Boulder, CO 80309, USA

^*These authors contributed equally to this work.