Author Affiliations

Timothy P. McKenna,^1,* Hubert S. Stokowski,^1,* Vahid Ansari,¹ Jatadhari Mishra,¹ Marc Jankowski,^1,2 Christopher J. Sarabalis,¹ Jason F. Herrmann,¹ Carsten Langrock,¹ Martin M. Fejer,¹ and Amir H. Safavi-Naeini¹

¹Ginzton Laboratory and Department of Applied Physics, Stanford University, 348 Via Pueblo Mall, Stanford, California 94305, USA

²NTT Physics and Informatics Laboratories, NTT Research, Inc., East Palo Alto, CA 94303, USA

^*These authors contributed equally to this work.