Author(s): Fan, XJ (Fan, Xiaojie); Zhu, S (Zhu, Sha); Du, JF (Du, Jinfeng); Li, M (Li, Ming); Zhu, NH (Zhu, Ning Hua); Li, W (Li, Wei)

Source: OPTICS LETTERS Volume: 46 Issue: 4 Pages: 868-871 DOI: 10.1364/OL.416984 Published: FEB 15 2021

Abstract: A photonic method to generate and transmit quadruple bandwidth dual-band dual-chirp microwave waveforms with immunity to fiber chromatic dispersion induced power fading is proposed and experimentally demonstrated, which is suitable for Doppler blind-speed elimination, small target detection, and multiband detection in multiband radar systems. A dual-polarization dual-parallel Mach-Zehnder modulator is utilized to realize carrier-suppressed harmonic single-sideband modulation of a radio frequency carrier and carrier-suppressed DSB modulation of a baseband single-chirped waveform at two orthogonal polarization states. After photoelectronic conversion, dual-band bandwidth-quadrupling dual-chirp waveforms are generated. Moreover, different from traditional DSB-based dual-chirp signal generation, the generated dual-chirp microwave waveforms can be transmitted over fiber without power fading, which is significant in dual-band radars for one to multiple base station transmissions. (C) 2021 Optical Society of America

Accession Number: WOS:000618473600043

PubMed ID: 33577534

ISSN: 0146-9592

eISSN: 1539-4794

Full Text: https://www.osapublishing.org/ol/fulltext.cfm?uri=ol-46-4-868&id=447601