Photonic generation of multi-frequency dual-chirp microwave waveform with multiplying bandwidth
A photonic approach to generate dual-chirp microwave waveform with multi-carrier frequencies and multiplying bandwidth is proposed and demonstrated by using a dual-polarization Mach-Zehnder modulator (DPol-MZM) and balanced detection. In the approach, the DPol-MZM driven by a baseband waveform modul...
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doaj-1bfb3fa33a8d47de896d09e339346a772020-11-25T01:09:08ZengElsevierResults in Physics2211-37972019-06-0113Photonic generation of multi-frequency dual-chirp microwave waveform with multiplying bandwidthKun Zhang0Shanghong Zhao1Tao Lin2Xuan Li3Wei Jiang4Guodong Wang5Information and Navigation College, Air Force Engineering University, Xi’an 710077, China; National Key Laboratory of Science and Technology on Space Microwave, Xi’an 710000, China; Corresponding author at: Information and Navigation College, Air Force Engineering University, Xi’an 710077, China.Information and Navigation College, Air Force Engineering University, Xi’an 710077, ChinaInformation and Navigation College, Air Force Engineering University, Xi’an 710077, ChinaInformation and Navigation College, Air Force Engineering University, Xi’an 710077, ChinaInformation and Navigation College, Air Force Engineering University, Xi’an 710077, China; National Key Laboratory of Science and Technology on Space Microwave, Xi’an 710000, ChinaInformation and Navigation College, Air Force Engineering University, Xi’an 710077, ChinaA photonic approach to generate dual-chirp microwave waveform with multi-carrier frequencies and multiplying bandwidth is proposed and demonstrated by using a dual-polarization Mach-Zehnder modulator (DPol-MZM) and balanced detection. In the approach, the DPol-MZM driven by a baseband waveform modulates the injected optical signal to generate optical broad-spectra sidebands. After heterodyne in balanced photodetector (BPD), multi-frequency dual-chirp microwave waveform can be generated. The proposed generator allows the injected optical signal with arbitrary intensity modulation format. The key features of the approach are the multi-carrier frequencies generation ability and the bandwidth multiplying operation. The proposed approach is verified by simulation. Dual-chirp signal with four-carrier frequencies is generated by employing optical frequency comb (OFC) with five comb lines. Auto-correlations of the generated signals show good pulse compression ratio and high peak-to-sidelobe ratio. The maximum frequency number of the system is analyzed, and the maximum power ratio is also investigated. Keywords: Microwave photonics, Polarization modulation, Dual-chirp signal, Multi-band radarhttp://www.sciencedirect.com/science/article/pii/S2211379719303869 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Kun Zhang Shanghong Zhao Tao Lin Xuan Li Wei Jiang Guodong Wang |
spellingShingle |
Kun Zhang Shanghong Zhao Tao Lin Xuan Li Wei Jiang Guodong Wang Photonic generation of multi-frequency dual-chirp microwave waveform with multiplying bandwidth Results in Physics |
author_facet |
Kun Zhang Shanghong Zhao Tao Lin Xuan Li Wei Jiang Guodong Wang |
author_sort |
Kun Zhang |
title |
Photonic generation of multi-frequency dual-chirp microwave waveform with multiplying bandwidth |
title_short |
Photonic generation of multi-frequency dual-chirp microwave waveform with multiplying bandwidth |
title_full |
Photonic generation of multi-frequency dual-chirp microwave waveform with multiplying bandwidth |
title_fullStr |
Photonic generation of multi-frequency dual-chirp microwave waveform with multiplying bandwidth |
title_full_unstemmed |
Photonic generation of multi-frequency dual-chirp microwave waveform with multiplying bandwidth |
title_sort |
photonic generation of multi-frequency dual-chirp microwave waveform with multiplying bandwidth |
publisher |
Elsevier |
series |
Results in Physics |
issn |
2211-3797 |
publishDate |
2019-06-01 |
description |
A photonic approach to generate dual-chirp microwave waveform with multi-carrier frequencies and multiplying bandwidth is proposed and demonstrated by using a dual-polarization Mach-Zehnder modulator (DPol-MZM) and balanced detection. In the approach, the DPol-MZM driven by a baseband waveform modulates the injected optical signal to generate optical broad-spectra sidebands. After heterodyne in balanced photodetector (BPD), multi-frequency dual-chirp microwave waveform can be generated. The proposed generator allows the injected optical signal with arbitrary intensity modulation format. The key features of the approach are the multi-carrier frequencies generation ability and the bandwidth multiplying operation. The proposed approach is verified by simulation. Dual-chirp signal with four-carrier frequencies is generated by employing optical frequency comb (OFC) with five comb lines. Auto-correlations of the generated signals show good pulse compression ratio and high peak-to-sidelobe ratio. The maximum frequency number of the system is analyzed, and the maximum power ratio is also investigated. Keywords: Microwave photonics, Polarization modulation, Dual-chirp signal, Multi-band radar |
url |
http://www.sciencedirect.com/science/article/pii/S2211379719303869 |
work_keys_str_mv |
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