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The reference pulsed laser passes through the same DFP channels as the lidar backscattered signals and serves directly as the frequency-feedback signal, enabling a compact integrated design without a dedicated locking channel. With a cascaded dual-loop proportional\u2013integral\u2013derivative control strategy, the pulsed-laser frequency is stably locked to the DFP reference operating point. During a 6-h temperature-locked closed-loop measurement, the Allan deviations are 1.54\u00a0MHz at 1\u00a0s and 0.89\u00a0MHz at 15\u00a0s, corresponding to equivalent wind-speed uncertainties of \u223c0.27 and 0.16\u00a0m\/s at 355\u00a0nm, respectively.<\/jats:p>","DOI":"10.1063\/5.0341433","type":"journal-article","created":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T12:34:32Z","timestamp":1790685272000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":0,"title":["Pulsed-laser frequency locking for a compact 355-nm direct-detection Doppler wind lidar"],"prefix":"10.1063","volume":"97","author":[{"ORCID":"https:\/\/orcid.org\/0009-0002-9072-2228","authenticated-orcid":false,"given":"Yiyang","family":"Wang","sequence":"first","affiliation":[{"name":"Wangzhijiang Innovation Center for Laser, Aerospace Laser Technology and System Department, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of 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