title: Microwave photonic bandstop filter with wide tunability and adjustable bandwidth.
abstract: A microwave photonic bandstop filter is proposed and experimentally demonstrated in this work. The filter exhibits promising performance combination of reconfigurability, frequency tunability, and bandwidth adjustment. The phase modulation on two orthogonal polarization states produces a bandpass and a lowpass MPF, respectively. The key concept of destructive interference between the bandpass and lowpass MPF enables the reconfiguration of MPF from bandpass to bandstop. By adjusting the wavelength of two orthogonally polarized optical carriers and the bandwidth of an optical bandpass filter, the bandstop filter is tunable in terms of center frequency and bandwidth.
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.forename: Chengwu
authors.initials: C
authors.lastname: Yang
authors.forename: Ling
authors.initials: L
authors.lastname: Wang
authors.forename: Zhilin
authors.initials: Z
authors.lastname: Yuan
authors.forename: Jianguo
authors.initials: J
authors.lastname: Liu
authors.forename: Ming
authors.initials: M
authors.lastname: Li
authors.forename: Ninghua
authors.initials: N
authors.lastname: Zhu