Xiaohong Lan, Yang Jiang, Jing Xu, Jinjian Feng, Yunkun Luo, Qianyou Long
{"title":"Flexible synthesis of complex microwave waveforms assisted by time-domain operations.","authors":"Xiaohong Lan, Yang Jiang, Jing Xu, Jinjian Feng, Yunkun Luo, Qianyou Long","doi":"10.1364/AO.571720","DOIUrl":null,"url":null,"abstract":"<p><p>A photonic method for generating complicated microwave waveforms is proposed and experimentally demonstrated. Assisted by two easy-to-operate time-domain operations of differentiation and odd-order components elimination, two independent sets of frequency components, including odd-order and even-order components, can be conveniently obtained. Some complicated waveforms, such as a full-duty-cycle sinc waveform with varying sidelobes, a full-duty-cycle <i>s</i><i>i</i><i>n</i><i>c</i><sup>2</sup> waveform with varying sidelobes, and a dark parabolic (or bright parabolic) waveform, are flexibly synthesized, which are validated by the theoretical analysis, simulations, and experimental demonstrations. Benefiting from the convenience of time-domain processing, the proposed scheme is easily implemented and offers relatively high precision in microwave waveform generation.</p>","PeriodicalId":101299,"journal":{"name":"Applied optics","volume":"64 26","pages":"7618-7628"},"PeriodicalIF":0.0000,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied optics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1364/AO.571720","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
A photonic method for generating complicated microwave waveforms is proposed and experimentally demonstrated. Assisted by two easy-to-operate time-domain operations of differentiation and odd-order components elimination, two independent sets of frequency components, including odd-order and even-order components, can be conveniently obtained. Some complicated waveforms, such as a full-duty-cycle sinc waveform with varying sidelobes, a full-duty-cycle sinc2 waveform with varying sidelobes, and a dark parabolic (or bright parabolic) waveform, are flexibly synthesized, which are validated by the theoretical analysis, simulations, and experimental demonstrations. Benefiting from the convenience of time-domain processing, the proposed scheme is easily implemented and offers relatively high precision in microwave waveform generation.