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Using an \u201cend\u2010to\u2010end\u00a0+\u00a0gradient optimization\u201d deep learning inverse\u2010design framework, we efficiently and accurately derive the structural parameters matching target absorption spectra. The designed LN metamaterial absorber (LN\u2010MMA) exhibits dual\u2010band near\u2010perfect absorption peaks at 1310 and 1550\u00a0nm, achieving peak efficiencies of 99.9% and 99.5%, respectively. Owing to the strong electro\u2010optic effect of LN, the resonance wavelengths can be dynamically tuned via an external electric field. Furthermore, by integrating the LN\u2010MMA with coherent technology, a dynamically tunable coherent perfect absorber (LN\u2010CPA) is realized, exhibiting absorption peaks at 1550 and 1704\u00a0nm with efficiencies of 98.5% and 98.1%. In this configuration, the absorption response can be actively tuned by the phase difference between two incident coherent beams, enabling all\u2010optical modulation. These results demonstrate a compact absorber with both electrical and optical tunability, showing strong potential for inter\u2010satellite laser communication, optoelectronic signal conversion, optical detection, and all\u2010optical signal processing.<\/jats:p>","DOI":"10.1002\/nap2.70262","type":"journal-article","created":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T04:11:28Z","timestamp":1787544688000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Deep\u2010Learning\u2010Assisted Design of Dynamically Tunable Near\u2010Infrared Dual\u2010Band Lithium Niobate Metamaterial Absorber for Optical Communication"],"prefix":"10.1002","volume":"15","author":[{"given":"Xiajun","family":"Liu","sequence":"first","affiliation":[{"name":"College of Physics Qingdao University  Qingdao 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