{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T15:21:40Z","timestamp":1785424900874,"version":"3.56.0"},"reference-count":20,"publisher":"Optica Publishing Group","issue":"13","license":[{"start":{"date-parts":[[2026,6,16]],"date-time":"2026-06-16T00:00:00Z","timestamp":1781568000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR"},{"start":{"date-parts":[[2026,6,16]],"date-time":"2026-06-16T00:00:00Z","timestamp":1781568000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of\n\t\t\t\t\t\tChina","doi-asserted-by":"crossref","award":["62335004"],"award-info":[{"award-number":["62335004"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"},{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100012166","name":"National Key R&D Program of\n\t\t\t\t\t\tChina","doi-asserted-by":"crossref","award":["2022YFB2903102"],"award-info":[{"award-number":["2022YFB2903102"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Guangdong Introducing Innovative and\n\t\t\t\t\t\tEntrepreneurial Teams of \u201cThe Pearl River Talent\n\t\t\t\t\t\tRecruitment Program\u201d","award":["2021ZT09X044"],"award-info":[{"award-number":["2021ZT09X044"]}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Lett."],"published-print":{"date-parts":[[2026,7,1]]},"abstract":"<jats:p>\n                    We report the generation of high-average-output-power picosecond-pulsed\n\t\t\t\t\toptical vortex beams from an all-fiberized Yb-doped fiber master\n\t\t\t\t\toscillator power amplifier (MOPA) system. A home-made broadband\n\t\t\t\t\tlong-period fiber grating is employed as an in-line mode converter\n\t\t\t\t\tprior to the final power amplifier stage to efficiently convert the\n\t\t\t\t\tpre-amplified fundamental Gaussian beam into optical vortex beams with\n\t\t\t\t\ta topological charge of\n                    <jats:italic>l<\/jats:italic>\n                    =\u00b11. The desired vortex beam is then\n\t\t\t\t\tefficiently amplified to an average output power of 170\u2009W with\n\t\t\t\t\ta pulse duration of ~95 ps and a mode purity of\n\t\t\t\t\t~92% at a repetition rate of 37\u2009MHz,\n\t\t\t\t\tcorresponding to a peak power of 48\u2009kW. To the best of our\n\t\t\t\t\tknowledge, this represents the highest average power achieved for\n\t\t\t\t\tpulsed vortex beams generated entirely within an all-fiber system,\n\t\t\t\t\tproviding a compact, alignment-free route to generate high-power\n\t\t\t\t\toptical vortex beams.\n                  <\/jats:p>","DOI":"10.1364\/ol.600264","type":"journal-article","created":{"date-parts":[[2026,5,28]],"date-time":"2026-05-28T12:00:06Z","timestamp":1779969606000},"page":"3493","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["170-W picosecond optical vortex beam amplification in an all-fiber MOPA system"],"prefix":"10.1364","volume":"51","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2566-9029","authenticated-orcid":true,"given":"Lin","family":"Yu","sequence":"first","affiliation":[{"name":"Guangdong University of Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cunjiang","family":"Wei","sequence":"additional","affiliation":[{"name":"Guangdong University of Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ran","family":"Zhao","sequence":"additional","affiliation":[{"name":"Guangdong University of Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hao","family":"He","sequence":"additional","affiliation":[{"name":"Guangdong University of Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chao","family":"Yuan","sequence":"additional","affiliation":[{"name":"Guangdong University of Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiajie","family":"Chen","sequence":"additional","affiliation":[{"name":"Guangdong University of Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8618-0166","authenticated-orcid":true,"given":"Jiangli","family":"Dong","sequence":"additional","affiliation":[{"name":"Guangdong University of Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5025-9051","authenticated-orcid":true,"given":"Di","family":"Lin","sequence":"additional","affiliation":[{"name":"Guangdong University of Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3330-9170","authenticated-orcid":true,"given":"Songnian","family":"Fu","sequence":"additional","affiliation":[{"name":"Guangdong University of Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9879-1514","authenticated-orcid":true,"given":"Yuwen","family":"Qin","sequence":"additional","affiliation":[{"name":"Guangdong University of Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,6,16]]},"reference":[{"key":"ol-51-13-3493-R1","doi-asserted-by":"publisher","first-page":"13648","DOI":"10.1073\/pnas.1612023113","type":"journal-article","volume":"113","author":"Krenn","year":"2016","journal-title":"Proc. Natl. Acad.\n\t\t\t\t\tSci. U.S.A."},{"key":"ol-51-13-3493-R2","doi-asserted-by":"publisher","first-page":"33306","DOI":"10.1038\/srep33306","type":"journal-article","volume":"6","author":"Ren","year":"2016","journal-title":"Sci. Rep."},{"key":"ol-51-13-3493-R3","doi-asserted-by":"publisher","first-page":"376","DOI":"10.3390\/mi12040376","type":"journal-article","volume":"12","author":"Tang","year":"2021","journal-title":"Micromachines"},{"key":"ol-51-13-3493-R4","first-page":"72","volume":"11981","author":"Kliner","year":"2022"},{"key":"ol-51-13-3493-R5","first-page":"119","author":"Omatsu","year":"2017"},{"key":"ol-51-13-3493-R6","doi-asserted-by":"publisher","first-page":"45114","DOI":"10.1038\/srep45114","type":"journal-article","volume":"7","author":"Skoulas","year":"2017","journal-title":"Sci. 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All rights,\n\t\t\t\t\tincluding for text and data mining (TDM), Artificial Intelligence (AI)\n\t\t\t\t\ttraining, and similar technologies, are\n\t\t\t\t\treserved.","name":"copyright","label":"Copyright"}]}}