Author(s): Fan, XJ (Fan, Xiaojie); Cao, XH (Cao, Xuhua); Li, M (Li, Ming); Zhu, NH (Zhu, Ning Hua); Li, W (Li, Wei)

Source: JOURNAL OF LIGHTWAVE TECHNOLOGY Volume: 40 Issue: 3 Pages: 672-680 DOI: 10.1109/JLT.2021.3121328 Published: FEB 1 2022

Abstract: We report a photonic approach to generate multi-band phase-coded microwave pulses based on polarization manipulation of optical signals using a dual-polarization dual-parallel Mach-Zehnder modulator (DPol-DPMZM). Two radio frequency signals are sent to the DPol-DPMZM to realize carrier-suppressed double sideband (CS-DSB) modulation. A high-speed polarization modulator, driven by a three-level electrical coding signal s(t), is used to switch the modulation states of optical signals. For s(t) = 1 or -1, the phases of the generated microwave signals are 0 or pi. For s(t) = 0, a carrier-suppressed single sideband (CS-SSB) modulation is realized and there is no desired microwave signal recovered after photodetection. In this way, multi-band phase-coded microwave pluses are generated. The pi phase jump of the generated phase-coded pulses is determined by the polarity of s(t) instead of its amplitude, which is low power consuming and convenient. Compared to most existing photonic schemes that generate multi-band phase-coded signals in continuous wave (CW) mode, our scheme can directly generate multi-band phase-coded signal in pulse mode, which is pretty suitable for multi-band radar system application.

Accession Number: WOS:000748372300014

Author Identifiers:

Author Web of Science ResearcherID ORCID Number

Li, Ming 0000-0001-8959-9619

ISSN: 0733-8724

eISSN: 1558-2213

Full Text: https://ieeexplore.ieee.org/document/9580728