Novel Photonic Crystal Fibre for Low-Noise Coherent Supercontinuum Generation

Novel Photonic Crystal Fibre for Low-Noise Coherent Supercontinuum Generation | 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 Article Novel Photonic Crystal Fibre for Low-Noise Coherent Supercontinuum Generation R. Morel, J. Millo, N. Forget, V. Thibaut, M. Marcadier, A. Jullien, and 8 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8288798/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 25 Mar, 2026 Read the published version in Scientific Reports → Version 1 posted 10 You are reading this latest preprint version Abstract We present a polarisation-maintaining all-normal dispersion photonic crystal fibre designed for 1030 nm femtosecond pumping, enabling ultra-stable and coherent supercontinuum (SC) generation spanning 650 nm–1300 nm. The fibre's polarisation-maintaining properties are achieved through two larger central holes in the structure, which is an alternative approach to using conventional stress rods. The fibre is specifically engineered to achieve minimum dispersion near 1030 nm, making it ideal for ultrafast comb-based metrology, and widely tunable optical parametric amplifier (OPA) systems. We further investigate the influence of input pulse contrast on supercontinuum generation through both numerical simulations and experiments. Relative intensity noise (RIN) and phase noise (PN) are characterized using three complementary techniques: dispersive Fourier transform (DFT), the Bellini–Hänsch interferometric method, and the dual-reference oscillator cross-correlation technique. The results demonstrate excellent stability, with pulse-to-pulse RIN below 0.5%, an optical phase deviation under 15 mrad, and phase noise levels down to -150 dBc/Hz at 10 kHz from the carrier, confirming the fibre’s suitability for demanding ultrafast applications. Physical sciences/Optics and photonics Physical sciences/Physics Photonic crystal fibres nonlinear optics fibre optics supercontinuum generation Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 25 Mar, 2026 Read the published version in Scientific Reports → Version 1 posted Editorial decision: Revision requested 12 Feb, 2026 Reviews received at journal 06 Feb, 2026 Reviewers agreed at journal 27 Jan, 2026 Reviews received at journal 04 Jan, 2026 Reviewers agreed at journal 14 Dec, 2025 Reviewers invited by journal 12 Dec, 2025 Editor invited by journal 12 Dec, 2025 Editor assigned by journal 06 Dec, 2025 Submission checks completed at journal 06 Dec, 2025 First submitted to journal 05 Dec, 2025 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-8288798","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":560240950,"identity":"64e4723d-ac44-466b-9c5b-5ef560955e97","order_by":0,"name":"R. 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Generation","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"scientific-reports","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"scirep","sideBox":"Learn more about [Scientific Reports](http://www.nature.com/srep/)","snPcode":"","submissionUrl":"","title":"Scientific Reports","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Scientific Reports","inReviewEnabled":true,"inReviewRevisionsEnabled":true},"keywords":"Photonic crystal fibres, nonlinear optics, fibre optics, supercontinuum generation","lastPublishedDoi":"10.21203/rs.3.rs-8288798/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-8288798/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eWe present a polarisation-maintaining all-normal dispersion photonic crystal fibre designed for 1030 nm femtosecond pumping, enabling ultra-stable and coherent supercontinuum (SC) generation spanning 650 nm\u0026ndash;1300 nm. The fibre's polarisation-maintaining properties are achieved through two larger central holes in the structure, which is an alternative approach to using conventional stress rods. The fibre is specifically engineered to achieve minimum dispersion near 1030 nm, making it ideal for ultrafast comb-based metrology, and widely tunable optical parametric amplifier (OPA) systems. We further investigate the influence of input pulse contrast on supercontinuum generation through both numerical simulations and experiments. Relative intensity noise (RIN) and phase noise (PN) are characterized using three complementary techniques: dispersive Fourier transform (DFT), the Bellini\u0026ndash;H\u0026auml;nsch interferometric method, and the dual-reference oscillator cross-correlation technique. The results demonstrate excellent stability, with pulse-to-pulse RIN below 0.5%, an optical phase deviation under 15 mrad, and phase noise levels down to -150 dBc/Hz at 10 kHz from the carrier, confirming the fibre\u0026rsquo;s suitability for demanding ultrafast applications.\u003c/p\u003e","manuscriptTitle":"Novel Photonic Crystal Fibre for Low-Noise Coherent Supercontinuum Generation","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-12-17 14:47:41","doi":"10.21203/rs.3.rs-8288798/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Revision requested","date":"2026-02-12T05:55:58+00:00","index":"","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2026-02-06T15:50:36+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"11054908008527298528777245901437216247","date":"2026-01-27T17:02:19+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2026-01-04T06:53:57+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"11912753391516720763639550416359234550","date":"2025-12-15T02:52:50+00:00","index":"hide","fulltext":""},{"type":"reviewersInvited","content":"","date":"2025-12-12T11:14:43+00:00","index":"","fulltext":""},{"type":"editorInvited","content":"","date":"2025-12-12T10:06:04+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2025-12-06T12:41:44+00:00","index":"","fulltext":""},{"type":"checksComplete","content":"","date":"2025-12-06T12:39:34+00:00","index":"","fulltext":""},{"type":"submitted","content":"Scientific Reports","date":"2025-12-05T14:39:42+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"scientific-reports","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"scirep","sideBox":"Learn more about [Scientific Reports](http://www.nature.com/srep/)","snPcode":"","submissionUrl":"","title":"Scientific Reports","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Scientific Reports","inReviewEnabled":true,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"a830c146-f4d0-4b09-9800-f8b3e5f724f1","owner":[],"postedDate":"December 17th, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"published-in-journal","subjectAreas":[{"id":59634354,"name":"Physical sciences/Optics and photonics"},{"id":59634355,"name":"Physical sciences/Physics"}],"tags":[],"updatedAt":"2026-03-30T16:19:12+00:00","versionOfRecord":{"articleIdentity":"rs-8288798","link":"https://doi.org/10.1038/s41598-026-43460-5","journal":{"identity":"scientific-reports","isVorOnly":false,"title":"Scientific Reports"},"publishedOn":"2026-03-25 16:13:16","publishedOnDateReadable":"March 25th, 2026"},"versionCreatedAt":"2025-12-17 14:47:41","video":"","vorDoi":"10.1038/s41598-026-43460-5","vorDoiUrl":"https://doi.org/10.1038/s41598-026-43460-5","workflowStages":[]},"version":"v1","identity":"rs-8288798","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-8288798","identity":"rs-8288798","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}