{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,26]],"date-time":"2025-09-26T22:15:30Z","timestamp":1758924930991,"version":"3.37.3"},"reference-count":20,"publisher":"Optica Publishing Group","issue":"17","license":[{"start":{"date-parts":[[2021,8,30]],"date-time":"2021-08-30T00:00:00Z","timestamp":1630281600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v1#VOR"},{"start":{"date-parts":[[2021,8,30]],"date-time":"2021-08-30T00:00:00Z","timestamp":1630281600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"DOI":"10.13039\/501100012166","name":"National Key Research and Development Program of China","doi-asserted-by":"publisher","award":["2019YFB1803900"],"award-info":[{"award-number":["2019YFB1803900"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["11690031","61575224","61622510"],"award-info":[{"award-number":["11690031","61575224","61622510"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Key Research and Development Program of Guangdong","award":["2018B030325002"],"award-info":[{"award-number":["2018B030325002"]}]},{"name":"Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program","award":["2017BT01X121"],"award-info":[{"award-number":["2017BT01X121"]}]},{"name":"Guangzhou Science and Technology Program","award":["202102020671"],"award-info":[{"award-number":["202102020671"]}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Lett."],"published-print":{"date-parts":[[2021,9,1]]},"abstract":"<jats:p>We propose and demonstrate a three-dimensional nano-printed four-channel vertical coupler array on the silicon-on-insulator platform for efficient chip-to-multicore fiber coupling. The proposed structure provides less than 1\u00a0dB loss in a single lane and around 2\u20134\u00a0dB loss in multicore fiber coupling, over 100\u00a0nm 1\u00a0dB bandwidth, and large 1\u00a0dB misalignment tolerances of more than 5\u00a0\u00b5m in the <jats:inline-formula>\n      <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\">\n\t<mml:mi>x<\/mml:mi>\n\t<mml:mi>y<\/mml:mi>\n      <\/mml:math>\n    <\/jats:inline-formula> plane and 20\u00a0\u00b5m in the <jats:inline-formula>\n      <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" display=\"inline\">\n\t<mml:mi>z<\/mml:mi>\n      <\/mml:math>\n    <\/jats:inline-formula> direction. The device shows great promise for photonic integrated devices for space-division-multiplexing technology based on multicore fiber.<\/jats:p>","DOI":"10.1364\/ol.434736","type":"journal-article","created":{"date-parts":[[2021,8,5]],"date-time":"2021-08-05T12:00:21Z","timestamp":1628164821000},"page":"4324","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Efficient four-way vertical coupler array for chip-scale space-division-multiplexing applications"],"prefix":"10.1364","volume":"46","author":[{"given":"Haozhi","family":"Luo","sequence":"first","affiliation":[{"name":"Sun Yat-sen University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1971-8613","authenticated-orcid":true,"given":"Lifeng","family":"Chen","sequence":"additional","affiliation":[{"name":"Sun Yat-sen University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Siyuan","family":"Yu","sequence":"additional","affiliation":[{"name":"Sun Yat-sen University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xinlun","family":"Cai","sequence":"additional","affiliation":[{"name":"Sun Yat-sen University"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"285","published-online":{"date-parts":[[2021,8,30]]},"reference":[{"volume-title":"14th Optoelectron. Commun. Conf.","year":"2009","author":"Morioka","key":"ol-46-17-4324-R1"},{"key":"ol-46-17-4324-R2","first-page":"17","volume-title":"Opt. InfoBase Conf. Paper","author":"Ryf","year":"2012"},{"key":"ol-46-17-4324-R3","first-page":"8","volume-title":"Frontiers in Optics","author":"Mumtaz","year":"2012"},{"key":"ol-46-17-4324-R4","first-page":"4","volume-title":"Eur. Conf. Opt. Commun. (ECOC)","author":"Essiambre","year":"2012"},{"key":"ol-46-17-4324-R5","first-page":"1254","volume-title":"IET Conference Proceedings","author":"Kobayashi","year":"2013"},{"key":"ol-46-17-4324-R6","first-page":"5","volume-title":"Opt. InfoBase Conf. Paper","author":"Sakaguchi","year":"2012"},{"key":"ol-46-17-4324-R7","first-page":"4","volume-title":"Eur. Conf. Exhib. Opt. Commun. (ECOC)","author":"Takara","year":"2012"},{"key":"ol-46-17-4324-R8","doi-asserted-by":"publisher","first-page":"11117","DOI":"10.1364\/OE.18.011117","volume":"18","author":"Zhu","year":"2010","journal-title":"Opt. Express"},{"key":"ol-46-17-4324-R9","first-page":"9","volume-title":"Conf. Opt. Fiber Commun. Tech. Dig. Ser.","volume":"1","author":"Mizuno","year":"2014"},{"key":"ol-46-17-4324-R10","doi-asserted-by":"publisher","first-page":"554","DOI":"10.1109\/JLT.2012.2217373","volume":"31","author":"Sakaguchi","year":"2013","journal-title":"J. Lightwave Technol."},{"key":"ol-46-17-4324-R11","first-page":"AF1G.1","volume-title":"Asia Communications and Photonics Conference","author":"Ding","year":"2016"},{"key":"ol-46-17-4324-R12","first-page":"3","volume-title":"Opt. Fiber Commun. Conf. Exhib. (OFC)","volume":"2","author":"De Heyn","year":"2017"},{"key":"ol-46-17-4324-R13","doi-asserted-by":"publisher","first-page":"4663","DOI":"10.1109\/JLT.2017.2755673","volume":"35","author":"Watanabe","year":"2017","journal-title":"J. Lightwave Technol."},{"key":"ol-46-17-4324-R14","doi-asserted-by":"publisher","first-page":"755","DOI":"10.1109\/JLT.2014.2373051","volume":"33","author":"Lindenmann","year":"2015","journal-title":"J. Lightwave Technol."},{"key":"ol-46-17-4324-R15","doi-asserted-by":"publisher","first-page":"10196","DOI":"10.1364\/OE.25.010196","volume":"25","author":"Sethi","year":"2017","journal-title":"Opt. Express"},{"key":"ol-46-17-4324-R16","doi-asserted-by":"publisher","first-page":"1236","DOI":"10.1364\/OL.386550","volume":"45","author":"Luo","year":"2020","journal-title":"Opt. Lett."},{"key":"ol-46-17-4324-R17","doi-asserted-by":"publisher","first-page":"010801","DOI":"10.1063\/1.5064401","volume":"4","author":"Gehring","year":"2019","journal-title":"APL Photon."},{"key":"ol-46-17-4324-R18","doi-asserted-by":"publisher","first-page":"5089","DOI":"10.1364\/OL.44.005089","volume":"44","author":"Gehring","year":"2019","journal-title":"Opt. Lett."},{"key":"ol-46-17-4324-R19","first-page":"3","volume-title":"Conf. Lasers Electro-Optics (CLEO)","author":"Blaicher","year":"2018"},{"key":"ol-46-17-4324-R20","doi-asserted-by":"publisher","first-page":"1104","DOI":"10.1126\/science.aat8196","volume":"361","author":"Wang","year":"2018","journal-title":"Science"}],"container-title":["Optics Letters"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/opg.optica.org\/viewmedia.cfm?URI=ol-46-17-4324&seq=0","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,8,6]],"date-time":"2024-08-06T19:27:27Z","timestamp":1722972447000},"score":1,"resource":{"primary":{"URL":"https:\/\/opg.optica.org\/abstract.cfm?URI=ol-46-17-4324"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,8,30]]},"references-count":20,"journal-issue":{"issue":"17","published-online":{"date-parts":[[2021]]},"published-print":{"date-parts":[[2021]]}},"URL":"https:\/\/doi.org\/10.1364\/ol.434736","relation":{},"ISSN":["0146-9592","1539-4794"],"issn-type":[{"type":"print","value":"0146-9592"},{"type":"electronic","value":"1539-4794"}],"subject":[],"published":{"date-parts":[[2021,8,30]]},"assertion":[{"value":"Optica Publishing Group","name":"publisher","label":"This article is maintained by"},{"value":"https:\/\/doi.org\/10.1364\/OL.434736","name":"articlelink","label":"Crossref DOI link to publisher maintained version"},{"value":"letter","name":"content_type","label":"Article type"},{"value":"Screened by Similarity Check","name":"cross_check","label":"Similarity check"},{"value":"Yes","order":0,"name":"peer_reviewed","label":"Peer reviewed","group":{"name":"peer_review","label":"Peer review"}},{"value":"Single blind","order":1,"name":"review_process","label":"Review process","group":{"name":"peer_review","label":"Peer review"}},{"value":"21 June 2021","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"4 August 2021","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"30 August 2021","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}},{"value":"\u00a9 2021 Optical Society of America","name":"copyright","label":"Copyright"}]}}