title: Highly reconfigurable microwave photonic single-bandpass filter with complex continuous-time impulse responses.
abstract: We propose a novel structure of complex-tap microwave photonic filter (MPF) employing an incoherent broadband optical source (BOS) and a programmable optical spectrum processor. By tailoring the optical spectral amplitude and phase, arbitrary complex continuous-time impulse responses of the MPF can be constructed. Frequency responses with a single flat-top, highly chirped, or arbitrary-shape passband are demonstrated, respectively. The passband center can also be tuned in a wide range only limited by the opto-electrical devices. To the best of our knowledge, it is the first demonstration of an incoherent-BOS-based MPF which is single-bandpass, widely tunable, and highly reconfigurable with complex taps.
authors.affiliation: State Key Laboratory on Integrated Optoelectronics/Tsinghua National Laboratory for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China.
authors.forename: Xiaoxiao
authors.initials: X
authors.lastname: Xue
authors.forename: Xiaoping
authors.initials: X
authors.lastname: Zheng
authors.forename: Hanyi
authors.initials: H
authors.lastname: Zhang
authors.forename: Bingkun
authors.initials: B
authors.lastname: Zhou
mesh_terms: D017076:Computer-Aided Design; D004867:Equipment Design; D005374:Filtration / Q000295:instrumentation*; D008872:Microwaves; D017785:Photons; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*