title: Idler-free photonic microwave mixer using a broadband optical source and cascaded phase modulators.
abstract: A method of all-optical microwave mixing and bandpass filtering is proposed to achieve idler-free RF frequency conversion based on cascaded phase modulation of a broadband optical source. The variable optical carrier time-shift method is employed to selectively generate the desired RF mixing components and highly suppress the other idler frequencies. An experimental system that can perform idler-free fundamental and harmonic RF upconversions is demonstrated, and the conversion efficiency is investigated both theoretically and experimentally.
authors.affiliation: State Key Laboratory on Integrated Optoelectronics/Tsinghua National Laboratory for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing, China. xxx03@mails.tsinghua.edu.cn
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