title: Silicon optical diode with 40 dB nonreciprocal transmission.
abstract: A passive all-silicon optical diode is demonstrated to realize a record high nonreciprocal transmission ratio (NTR) of 40 dB. Individual microrings that make up the device are experimentally studied to explain the nonlinear power dynamics. There is a compromise between the NTR and insertion loss, and possible solutions for further improvements are discussed. This work provides a way to realize extremely high optical nonreciprocity on chip for optical information processing applications.
authors.affiliation: Birck Nanotechnology Center and School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907, USA. lfan@purdue.edu
authors.forename: Li
authors.initials: L
authors.lastname: Fan
authors.forename: Leo T
authors.initials: LT
authors.lastname: Varghese
authors.forename: Jian
authors.initials: J
authors.lastname: Wang
authors.forename: Yi
authors.initials: Y
authors.lastname: Xuan
authors.forename: Andrew M
authors.initials: AM
authors.lastname: Weiner
authors.forename: Minghao
authors.initials: M
authors.lastname: Qi
mesh_terms: D055096:Optical Devices; D055620:Optical Phenomena; D012825:Silicon / Q000737:chemistry*; D013696:Temperature
chemical_list: D012825:Silicon