Investigation on the linewidth characteristics of 972.26 nm BBO-OPO with a volume Bragg grating output coupler

Investigation on the linewidth characteristics of 972.26 nm BBO-OPO with a volume Bragg grating output coupler | 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 Investigation on the linewidth characteristics of 972.26 nm BBO-OPO with a volume Bragg grating output coupler Fei Du, Tingting Lu, Junxuan Zhang, Jian Ma, Haoda Ma, Jun Zhou, and 2 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-9175488/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 The spectral linewidth characteristics of BBO-optical parametric oscillator (OPO) with a volume Bragg grating (VBG) output coupler were investigated in theoretical simulation and experimental validation. Superior performance in narrowing the linewidth of OPO signal light could be obtained when lower reflectivity VBG was employed. In a concave-VBG cavity, pumped by a 532.23 nm single-longitudinal -mode (SLM) laser at 1 kHz repetition rate with maximum power of 6.3 W, 1.2 W power of 972.26 nm signal light with 3 pm linewidth was achieved when a VBG with 80% reflectivity was used. The pulse duration was around 2.2 ns, and the optical conversion efficiency of OPO signal light was up to 19%. Finally, 486.13 nm blue laser with 1.4 pm spectral linewidth was obtained by using one single LBO crystal as the second harmonic generator. 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-9175488","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":617490727,"identity":"bf8cff7b-9513-4727-a584-d0ae688b23df","order_by":0,"name":"Fei Du","email":"","orcid":"","institution":"Shanghai Institute of Optics and Fine Mechanics","correspondingAuthor":false,"prefix":"","firstName":"Fei","middleName":"","lastName":"Du","suffix":""},{"id":617490728,"identity":"470839bf-758e-4b2b-abc0-7adf52447c7d","order_by":1,"name":"Tingting Lu","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA40lEQVRIie2RsQrCMBCGrwSaJdq14EscCOIg9kFclEInC4qLbgXBTXwWNzcjWfsGOtTFRYe6VXAwV3VNOwrmg/wkcB934QAsll+EUaA+HJysvFQhSJFYugzrKRTy3c71a80V8Ia65pNTP2GisygmvQFwlcFjZxqsGXUlXkJSjgKjOBEROuvUpIgOSlQhkAKo4gTGwJxVTWVakOLdKpV2ppU+KSBI8au6KF2ZohoCc2ct+svKv+BhbVD4Jm3n86cKgC+39+LZizdeeM4eBkVTrmO0l98nfBZlgOU6gooii8Vi+WdeWTJFvnE6DEEAAAAASUVORK5CYII=","orcid":"","institution":"Shanghai Institute of Optics and Fine Mechanics","correspondingAuthor":true,"prefix":"","firstName":"Tingting","middleName":"","lastName":"Lu","suffix":""},{"id":617490729,"identity":"91b9c163-ec87-473d-9e9a-7fe1bab58348","order_by":2,"name":"Junxuan Zhang","email":"","orcid":"","institution":"Shanghai Institute of Optics and Fine Mechanics","correspondingAuthor":false,"prefix":"","firstName":"Junxuan","middleName":"","lastName":"Zhang","suffix":""},{"id":617490730,"identity":"2e880881-7d8f-47ef-b435-7d072626eacf","order_by":3,"name":"Jian Ma","email":"","orcid":"","institution":"Shanghai Institute of Optics and Fine Mechanics","correspondingAuthor":false,"prefix":"","firstName":"Jian","middleName":"","lastName":"Ma","suffix":""},{"id":617490731,"identity":"ea8764b2-d3d9-4679-a562-eff54528c2f1","order_by":4,"name":"Haoda Ma","email":"","orcid":"","institution":"Shanghai Institute of Optics and Fine Mechanics","correspondingAuthor":false,"prefix":"","firstName":"Haoda","middleName":"","lastName":"Ma","suffix":""},{"id":617490732,"identity":"be80ae8f-8045-4f5a-8158-fcb18b403b0f","order_by":5,"name":"Jun Zhou","email":"","orcid":"","institution":"Shanghai Institute of Optics and Fine Mechanics","correspondingAuthor":false,"prefix":"","firstName":"Jun","middleName":"","lastName":"Zhou","suffix":""},{"id":617490733,"identity":"977f71e3-01e3-4ef6-95dc-1ee8dea9fbcf","order_by":6,"name":"Xiaolei Zhu","email":"","orcid":"","institution":"Shanghai Institute of Optics and Fine Mechanics","correspondingAuthor":false,"prefix":"","firstName":"Xiaolei","middleName":"","lastName":"Zhu","suffix":""},{"id":617490734,"identity":"c006381c-d543-4761-b1b8-530241b17644","order_by":7,"name":"Tianhua Zhou","email":"","orcid":"","institution":"Shanghai Institute of Optics and Fine Mechanics","correspondingAuthor":false,"prefix":"","firstName":"Tianhua","middleName":"","lastName":"Zhou","suffix":""}],"badges":[],"createdAt":"2026-03-20 06:23:43","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-9175488/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-9175488/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":106403021,"identity":"145dc7c9-1e56-45bc-addf-c70799f8d1b8","added_by":"auto","created_at":"2026-04-08 09:13:24","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":737099,"visible":true,"origin":"","legend":"","description":"","filename":"Investigationonthelinewidthcharacteristicsof972.26nmBBOOPOwithavolumeBragggratingoutputcoupler.pdf","url":"https://assets-eu.researchsquare.com/files/rs-9175488/v1_covered_2e4ec345-79c1-4b93-a257-2211fb9c7635.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Investigation on the linewidth characteristics of 972.26 nm BBO-OPO with a volume Bragg grating output coupler","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":"","lastPublishedDoi":"10.21203/rs.3.rs-9175488/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-9175488/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eThe spectral linewidth characteristics of BBO-optical parametric oscillator (OPO) with a volume Bragg grating (VBG) output coupler were investigated in theoretical simulation and experimental validation. Superior performance in narrowing the linewidth of OPO signal light could be obtained when lower reflectivity VBG was employed. In a concave-VBG cavity, pumped by a 532.23 nm single-longitudinal -mode (SLM) laser at 1 kHz repetition rate with maximum power of 6.3 W, 1.2 W power of 972.26 nm signal light with 3 pm linewidth was achieved when a VBG with 80% reflectivity was used. The pulse duration was around 2.2 ns, and the optical conversion efficiency of OPO signal light was up to 19%. Finally, 486.13 nm blue laser with 1.4 pm spectral linewidth was obtained by using one single LBO crystal as the second harmonic generator.\u003c/p\u003e","manuscriptTitle":"Investigation on the linewidth characteristics of 972.26 nm BBO-OPO with a volume Bragg grating output coupler","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2026-04-06 09:19:32","doi":"10.21203/rs.3.rs-9175488/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":"0763714c-a448-41a5-b191-3209f6b8fdfb","owner":[],"postedDate":"April 6th, 2026","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2026-04-07T13:27:16+00:00","versionOfRecord":[],"versionCreatedAt":"2026-04-06 09:19:32","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-9175488","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-9175488","identity":"rs-9175488","version":["v1"]},"buildId":"XKTyCvWXoU3ODBz1xrDgd","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}