title: Bandwidth and wavelength tunable optical passband filter based on silicon multiple microring resonators.
abstract: An ultra-compact silicon bandpass filter with wide bandwidth tunability is proposed and experimentally demonstrated. The filter architecture is based on a multiple micro-ring resonator-cascaded structure. A wide bandwidth tunability (from 75 to 300 GHz) can be achieved by controlling the resonant frequency of the microring resonators when a good shape factor (0.24-0.44) is held. The filter has a wide free spectral range (about 1.2 THz). The center wavelength can be tuned over several nanometers linearly. The footprint is only 0.053  mm2.
authors.forename: Tingge
authors.initials: T
authors.lastname: Dai
authors.forename: Ao
authors.initials: A
authors.lastname: Shen
authors.forename: Gencheng
authors.initials: G
authors.lastname: Wang
authors.forename: Yuehai
authors.initials: Y
authors.lastname: Wang
authors.forename: Yubo
authors.initials: Y
authors.lastname: Li
authors.forename: Xiaoqing
authors.initials: X
authors.lastname: Jiang
authors.forename: Jianyi
authors.initials: J
authors.lastname: Yang