{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,7]],"date-time":"2026-08-07T16:12:48Z","timestamp":1786119168088,"version":"build-2736575974"},"reference-count":15,"publisher":"Optica Publishing Group","issue":"16","license":[{"start":{"date-parts":[[2026,8,6]],"date-time":"2026-08-06T00:00:00Z","timestamp":1785974400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR"},{"start":{"date-parts":[[2026,8,6]],"date-time":"2026-08-06T00:00:00Z","timestamp":1785974400000},"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 China","doi-asserted-by":"crossref","award":["42476184"],"award-info":[{"award-number":["42476184"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"},{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Fujian Provincial Special Fund Project for the High-Quality Development of Marine and Fishery Industries","award":["FTHYF-L-2025-07-016"],"award-info":[{"award-number":["FTHYF-L-2025-07-016"]}]},{"name":"Fujian Natural Science Foundation for Distinguished Young Scholars","award":["2026J010006"],"award-info":[{"award-number":["2026J010006"]}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Lett."],"published-print":{"date-parts":[[2026,8,15]]},"abstract":"<jats:p>\n                    Underwater wireless optical communication (UWOC) offers high data rate and low latency, making it an important complement to underwater acoustic communication. In particular, single-photon UWOC (SP-UWOC) has attracted increasing attention because of its high sensitivity and potential for long-range transmission. However, the dead time of a single-photon detector makes it difficult to achieve effective pulse recognition and communication with a single-pixel detection scheme. In addition, the highly collimated laser beam, water turbulence, and underwater platform motion impose stringent optical alignment requirements between the transmitter and receiver. Here, a single-pixel SP-UWOC based on a coiled-fiber receiver is proposed and demonstrated. By using a coil of bare optical fiber as the receiver, the proposed system not only relaxes the alignment requirement between the transmitter and receiver but also exploits the position-dependent propagation delays along the coiled fiber to temporally spread simultaneously incident photons. This enables a single-pixel single-photon detector to receive and resolve multiple photons within a single transmitted pulse, thereby achieving effective communication. Experimental results show that, with a bit error rate (BER) below the forward error correction (FEC) threshold of 3.8 \u00d7 10\n                    <jats:sup>\u22123<\/jats:sup>\n                    , the proposed system supports a data rate of 0.8 Mbps over an 85\u2009m link at an attenuation length (AL) of 4.65\u2009m and over a 9.6\u2009m link at an AL of 0.89\u2009m. These results demonstrate the feasibility of the proposed approach and highlight its potential for long-range, robust, and alignment-relaxed UWOC.\n                  <\/jats:p>","DOI":"10.1364\/ol.605000","type":"journal-article","created":{"date-parts":[[2026,7,21]],"date-time":"2026-07-21T14:00:07Z","timestamp":1784642407000},"page":"4536","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Single-pixel, single-photon underwater laser communication with a coiled-fiber receiver"],"prefix":"10.1364","volume":"51","author":[{"given":"Mingquan","family":"Ouyang","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00mcjh785","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Fujian Ocean Innovation Center"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bohua","family":"Feng","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00mcjh785","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Fujian Ocean Innovation Center"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mingjia","family":"Shangguan","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/00mcjh785","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Fujian Ocean Innovation Center"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,8,6]]},"reference":[{"key":"ol-51-16-4536-R1","doi-asserted-by":"publisher","first-page":"204","DOI":"10.1109\/COMST.2016.2618841","type":"journal-article","volume":"19","author":"Zeng","year":"2017","journal-title":"IEEE Commun. Surv. Tuts."},{"key":"ol-51-16-4536-R2","doi-asserted-by":"publisher","first-page":"1644","DOI":"10.1109\/JLT.2024.3484570","type":"journal-article","volume":"43","author":"Xu","year":"2025","journal-title":"J. Lightwave Technol."},{"key":"ol-51-16-4536-R3","doi-asserted-by":"publisher","first-page":"352","DOI":"10.1109\/JOE.2019.2958003","type":"journal-article","volume":"46","author":"Zhou","year":"2021","journal-title":"IEEE J. Ocean. Eng."},{"key":"ol-51-16-4536-R4","doi-asserted-by":"publisher","first-page":"96","DOI":"10.1109\/MCOM.001.2300461","type":"journal-article","volume":"62","author":"Zhang","year":"2024","journal-title":"IEEE Commun. Mag."},{"key":"ol-51-16-4536-R5","doi-asserted-by":"publisher","first-page":"7302106","DOI":"10.1109\/JPHOT.2023.3266442","type":"journal-article","volume":"15","author":"Huang","year":"2023","journal-title":"IEEE Photon. 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All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.","name":"copyright","label":"Copyright"}]}}