title: Wavelength-selective 4 × 4 nonblocking silicon optical router for networks-on-chip.
abstract: We design and fabricate a wavelength-selective nonblocking 4 × 4 silicon optical router based on microring resonator for use in future integrated photonic interconnection networks. We successfully demonstrate 12 possible I/O routing paths and present 13 nonblocking operating states, including four broadcasting states, with worst-case extinction ratio and cross talk of 21.05 and -21.56 dB, respectively. Thermal tuning is employed to compensate the resonance shift of microring resonators caused by fabrication errors and adjust the resonance to match the International Telecommunication Unit grid with the channel spacing of 100 GHz.
authors.affiliation: Department of Information Science and Electronics Engineering, Zhejiang University, Hangzhou 310027, China.
authors.forename: Ting
authors.initials: T
authors.lastname: Hu
authors.forename: Huiye
authors.initials: H
authors.lastname: Qiu
authors.forename: Ping
authors.initials: P
authors.lastname: Yu
authors.forename: Chen
authors.initials: C
authors.lastname: Qiu
authors.forename: Wanjun
authors.initials: W
authors.lastname: Wang
authors.forename: Xiaoqing
authors.initials: X
authors.lastname: Jiang
authors.forename: Mei
authors.initials: M
authors.lastname: Yang
authors.forename: Jianyi
authors.initials: J
authors.lastname: Yang