Author Affiliations

Lue Wu,^1,† Weiqiang Xie,^2,† Chao Xiang,² Lin Chang,² Yan Yu,¹ Hao-Jing Chen,¹ Yoshihisa Yamamoto,³ John E. Bowers,² Kerry J. Vahala,¹ and Myoung-Gyun Suh³

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, CA, 93106, USA

³Physics & Informatics Laboratories, NTT Research, Inc., Sunnyvale, CA 94085, USA

^†These authors contributed equally to this work.