{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T18:59:48Z","timestamp":1790017188485,"version":"4.0.1"},"reference-count":24,"publisher":"Optica Publishing Group","issue":"20","license":[{"start":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T00:00:00Z","timestamp":1789948800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR-OA"},{"start":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T00:00:00Z","timestamp":1789948800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"name":"Beijing Natural Science Foundation","award":["L232048"],"award-info":[{"award-number":["L232048"]}]},{"name":"National Natural Science Foundation of China","award":["62371058"],"award-info":[{"award-number":["62371058"]}],"id":[{"id":"https:\/\/ror.org\/01h0zpd94","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Opt. Express"],"published-print":{"date-parts":[[2026,10,5]]},"abstract":"<jats:p>Underwater wireless optical communication (UWOC) has been widely studied as a key technology for high-speed underwater data transmission in ocean exploration and exploitation. As the demand for image and video transmission grows in such scenarios, the limited bandwidth of UWOC becomes a critical bottleneck, under which traditional separate source-channel coding suffers substantial efficiency loss when handling high-dimensional image sources. Underwater wireless optical semantic communication (UWOSC) has accordingly been explored, which employs joint source-channel coding (JSCC) to directly transmit source semantics and improve both transmission efficiency and robustness. However, the performance of existing UWOSC systems degrades significantly under oceanic turbulence, whose non-stationary and intensity-varying characteristics pose a major challenge to robust JSCC design. In this paper, we propose gated-JSCC, an enhanced vision-transformer-based JSCC (ViT-JSCC) architecture that suppresses turbulence-induced unreliable attention propagation through dual-end attention-output gating and a depthwise-convolution-enhanced feed-forward network (DWConv-FFN). The gating mechanism confines the influence of deeply faded tokens within the attention output, while the DWConv-FFN reinforces local spatial coherence under spatially correlated fading. Simulation results across a wide range of SNR, turbulence strength, and propagation-distance settings show that gated-JSCC achieves consistent PSNR gains of approximately 1.1\u20131.7 dB over the ViT-JSCC baseline. Experiments under the same symbol budget further show that the proposed scheme outperforms conventional separate source-channel coding by 6.1\u201314.4 dB under turbulence-induced bubble and temperature fading. These results demonstrate the effectiveness of dual-end attention-output gating together with DWConv-FFN for robust semantic transmission over turbulent underwater optical channels.<\/jats:p>","DOI":"10.1364\/oe.610358","type":"journal-article","created":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T08:00:08Z","timestamp":1789113608000},"page":"36873","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Gated joint source-channel coding for turbulence-resilient semantic transmission over underwater wireless optical channels"],"prefix":"10.1364","volume":"34","author":[{"given":"Yan","family":"Ge","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/04w9fbh59","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhitong","family":"Huang","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/04w9fbh59","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5119-9588","authenticated-orcid":true,"given":"Jie","family":"Xu","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/04w9fbh59","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2252-4967","authenticated-orcid":true,"given":"Yi","family":"Gao","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/04w9fbh59","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qiming","family":"Gao","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/04w9fbh59","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,9,21]]},"reference":[{"key":"oe-34-20-36873-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. 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