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Over the past decades, extensive efforts have aimed to realize mode-locked lasers based on photonic integrated circuits (PICs) that are compact, manufactured at wafer scale and are compatible with further on-chip functionalities\n                    <jats:sup>4\u20136<\/jats:sup>\n                    . Yet, existing demonstrations to date lack the pulse energy required to drive nonlinear processes, such as supercontinuum generation. Here we demonstrate a mode-locked laser that overcomes this challenge through the use of erbium-ion-implanted silicon nitride PICs\n                    <jats:sup>7<\/jats:sup>\n                    . The laser is based on the Mamyshev oscillator architecture\n                    <jats:sup>8<\/jats:sup>\n                    , in which alternating spectral filtering and self-phase modulation enable mode-locking and can support large nonlinear phase shifts\n                    <jats:sup>9<\/jats:sup>\n                    . It operates without external seeding, delivering a 176-MHz pulse train with nanojoule pulse energy, comparable with fibre lasers and exceeding previous PIC-based sources by two orders of magnitude. The output exhibits high coherence, can be linearly compressed to 147\u2009fs and can directly drive a 1.5-octave-spanning supercontinuum in a Si\n                    <jats:sub>3<\/jats:sub>\n                    N\n                    <jats:sub>4<\/jats:sub>\n                    waveguide, without any further amplification. A compact terahertz time-domain spectrometer driven by this source achieved a bandwidth of 5\u2009THz and a 90-dB dynamic range. We demonstrate its application in non-contact chemical analysis and inspection. Our results show the potential of an integrated ultrafast laser, with applications ranging from chip-scale frequency metrology to portable spectroscopy systems.\n                  <\/jats:p>","DOI":"10.1038\/s41586-026-10517-4","type":"journal-article","created":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T15:03:27Z","timestamp":1780499007000},"page":"57-63","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["High-pulse-energy integrated mode-locked laser using a Mamyshev oscillator"],"prefix":"10.1038","volume":"654","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6465-026X","authenticated-orcid":false,"given":"Zheru","family":"Qiu","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xuan","family":"Yang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xurong","family":"Li","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianqi","family":"Hu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhongshu","family":"Liu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yichi","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7057-7786","authenticated-orcid":false,"given":"Xinru","family":"Ji","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiale","family":"Sun","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Grigory","family":"Lihachev","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zihan","family":"Li","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5295-2554","authenticated-orcid":false,"given":"Ulrich","family":"Kentsch","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3408-886X","authenticated-orcid":false,"given":"Tobias J.","family":"Kippenberg","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,6,3]]},"reference":[{"key":"10517_CR1","doi-asserted-by":"publisher","first-page":"902","DOI":"10.1109\/2944.796309","volume":"5","author":"T Juhasz","year":"2002","unstructured":"Juhasz, T. et al. 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