Photonic Generation of Dual-Band Dual-Chirp Microwave Waveforms Using Cascaded Stimulated Brillouin Scattering

Photonic Generation of Dual-Band Dual-Chirp Microwave Waveforms Using Cascaded Stimulated Brillouin Scattering | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Photonic Generation of Dual-Band Dual-Chirp Microwave Waveforms Using Cascaded Stimulated Brillouin Scattering lipeng qi, jun xu, lin li, haidong you This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8453195/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract In this work, a dual-band dual-chirp microwave (DCMW) signal generation system is established based on the synergistic mechanism between cascaded stimulated Brillouin scattering (cascaded SBS) and an electro-optically synthesized frequency scanning laser source (FSLS). The system employs a single tunable laser as the optical carrier. A dual-loop optoelectronic oscillator (OEO) is utilized to selectively excite the − 1st- and − 2nd-order Stokes sidebands, respectively. Concurrently, an arbitrary waveform generator (AWG) drives a Mach–Zehnder modulator (MZM) to emulate the FSLS functionality, thereby eliminating the need for an additional RF local oscillator. Experimentally, two linear frequency modulated (LFM) microwave signals were successfully generated, centered at approximately 2.35 GHz and 6.35 GHz, each with a bandwidth of 7 GHz and a corresponding chirp rate of ± 5.3 GHz/µs. Preliminary analysis of the signal’s autocorrelation function and ambiguity function demonstrates that the dual-chirp waveform exhibits favorable pulse compression performance and low range–Doppler coupling, suggesting its potential for further exploration in future radar or anti-jamming communication applications. Microwave photonics Waveform generation Rectified sinusoidal waveform Rectified cosinusoidal waveform Tunable duty cycle Mach–Zehnder modulator Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-8453195","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":566193831,"identity":"fba97383-bf15-40c3-b52f-5ac83e279bf7","order_by":0,"name":"lipeng qi","email":"","orcid":"","institution":"Qingdao Agricultural University","correspondingAuthor":false,"prefix":"","firstName":"lipeng","middleName":"","lastName":"qi","suffix":""},{"id":566193832,"identity":"84af13a5-2f0a-4fd0-8c72-ef9d266b7913","order_by":1,"name":"jun xu","email":"","orcid":"","institution":"Qingdao Agricultural University","correspondingAuthor":false,"prefix":"","firstName":"jun","middleName":"","lastName":"xu","suffix":""},{"id":566193833,"identity":"12990fac-5120-45d4-8efa-e38914db2c40","order_by":2,"name":"lin li","email":"","orcid":"","institution":"Qingdao Agricultural University","correspondingAuthor":false,"prefix":"","firstName":"lin","middleName":"","lastName":"li","suffix":""},{"id":566193834,"identity":"9ab94c86-0aa1-4a0d-8e2a-2ebb7e19c9d5","order_by":3,"name":"haidong you","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAtUlEQVRIiWNgGAWjYBACA4YEIFkB4UiQoOUMyVoY20jRYs6eY/iYd561vMEB5oO3eRjs8ghqsex5Y2zMuy3dcMMBtmRrHobkYsIOu5FjJs277TDjhgM8ZtI8DAcSG4jTMuew/YYD/N9I0dJwOBFoCxuRWs48Kzaccyw9eeZhNmPLOQbJRGg5nrzxwZsaa9u+480Pb7ypsCOshYGBwwBIMIMRKJqIAewPGKDqR8EoGAWjYBRgBwDd7jowTCKUVAAAAABJRU5ErkJggg==","orcid":"","institution":"Qingdao Agricultural University","correspondingAuthor":true,"prefix":"","firstName":"haidong","middleName":"","lastName":"you","suffix":""}],"badges":[],"createdAt":"2025-12-26 07:53:07","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-8453195/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-8453195/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":103506635,"identity":"b4fd55d6-fddb-4544-a5a0-cf0fb1847240","added_by":"auto","created_at":"2026-02-26 13:38:18","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":808105,"visible":true,"origin":"","legend":"","description":"","filename":"PhotonicGenerationofDualBandDualChirpMicrowaveWaveformsUsingCascadedStimulatedBrillouinScattering.pdf","url":"https://assets-eu.researchsquare.com/files/rs-8453195/v1_covered_c4e41ef0-db94-408c-b722-9d9ef5e989f7.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Photonic Generation of Dual-Band Dual-Chirp Microwave Waveforms Using Cascaded Stimulated Brillouin Scattering","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Microwave photonics, Waveform generation, Rectified sinusoidal waveform, Rectified cosinusoidal waveform, Tunable duty cycle, Mach–Zehnder modulator","lastPublishedDoi":"10.21203/rs.3.rs-8453195/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-8453195/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003e \u003cspan type=\"SmallCaps\" class=\"SmallCaps\" name=\"Emphasis\"\u003eIn this work, a dual-band dual-chirp microwave (DCMW) signal generation system is established based on the synergistic mechanism between cascaded stimulated Brillouin scattering (cascaded SBS) and an electro-optically synthesized frequency scanning laser source (FSLS). The system employs a single tunable laser as the optical carrier. A dual-loop optoelectronic oscillator (OEO) is utilized to selectively excite the \u0026minus;\u0026thinsp;1st- and \u0026minus;\u0026thinsp;2nd-order Stokes sidebands, respectively. Concurrently, an arbitrary waveform generator (AWG) drives a Mach\u0026ndash;Zehnder modulator (MZM) to emulate the FSLS functionality, thereby eliminating the need for an additional RF local oscillator. Experimentally, two linear frequency modulated (LFM) microwave signals were successfully generated, centered at approximately 2.35 GHz and 6.35 GHz, each with a bandwidth of 7 GHz and a corresponding chirp rate of \u0026plusmn;\u0026thinsp;5.3 GHz/\u0026micro;s. Preliminary analysis of the signal\u0026rsquo;s autocorrelation function and ambiguity function demonstrates that the dual-chirp waveform exhibits favorable pulse compression performance and low range\u0026ndash;Doppler coupling, suggesting its potential for further exploration in future radar or anti-jamming communication applications.\u003c/span\u003e \u003c/p\u003e","manuscriptTitle":"Photonic Generation of Dual-Band Dual-Chirp Microwave Waveforms Using Cascaded Stimulated Brillouin Scattering","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2026-01-20 12:14:05","doi":"10.21203/rs.3.rs-8453195/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"bc9b1e84-8498-4b7a-8a9e-15167338bfa7","owner":[],"postedDate":"January 20th, 2026","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2026-02-24T10:26:45+00:00","versionOfRecord":[],"versionCreatedAt":"2026-01-20 12:14:05","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-8453195","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-8453195","identity":"rs-8453195","version":["v1"]},"buildId":"XKTyCvWXoU3ODBz1xrDgd","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}