Ultra-high-Q silicon nitride micro-resonators for low-power frequency comb initiation

Yi Xuan, Yang Liu, Leo T. Varghese, Andrew J. Metcalf, Xiaoxiao Xue, Pei Hsun Wang, Kyunghun Han, Jose A. Jramillo-Villegas, Sangsik Kim, Li Fan, Jian Wang, Ben Niu, Min Teng, Daniel E. Leaird, Andrew M. Weiner, Minghao Qi