A tunable and wideband microwave photonic phase shifter based on dual-polarization modulator

Zhengxue Peng, Aijun Wen, Yongsheng Gao, Zhaoyang Tu

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

A microwave photonic phase shifter based on dual-polarization Mach-Zehnder modulator (DPol-MZM) is proposed and experimentally demonstrated in this paper. A polarization multiplexed double sideband (DSB) signal is produced by a DPol-MZM. An optical bandpass filter (OBPF) follows after the DPol-MZM to filter out the optical carrier and one sideband. The polarization multiplexed signal is converted into a linear polarization light by a polarizer (Pol), and then beat at a photodiode (PD) to obtain the phase shifted signal. Experiments are carried out, and a continuous phase shift from −180° to 180° over a wide microwave frequency range of 10–33 GHz can be achieved by changing the polarization state using a polarization controller (PC). We also studied the spurious free dynamic range (SFDR) in the experiments. The features of this proposed phase shifter are large operation bandwidth, full-range 360° phase shift, and simple structure.

Original languageEnglish
Pages (from-to)377-380
Number of pages4
JournalOptics Communications
Volume382
DOIs
StatePublished - 1 Jan 2017
Externally publishedYes

Keywords

  • Microwave phase shifter
  • Microwave photonic
  • Spurious free dynamic range (SFDR)

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