Haoyu Liu , Kun Jin , Jun Li , Jian Wu , Yanxing Ma , Rongtao Su , Jinyong Leng , Pu Zhou
{"title":"Learning to estimate phases from single local patterns for coherent beam combination","authors":"Haoyu Liu , Kun Jin , Jun Li , Jian Wu , Yanxing Ma , Rongtao Su , Jinyong Leng , Pu Zhou","doi":"10.1016/j.yofte.2024.104031","DOIUrl":null,"url":null,"abstract":"<div><div>We developed an advanced active phase control method for coherent beam combining using a lightweight residual neural network architecture (ResNet18), based on single local intensity patterns at non-focal plane. By estimating the phases only from a localized intensity image patch, the camera frame rate can be significantly improved, thereby ensuring more robust phase locking against larger-scale noise. Simulated experiments demonstrated that our technique achieves effective phase locking for coherent beam combination across scales of 19, 37, and 61 channels.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"88 ","pages":"Article 104031"},"PeriodicalIF":2.6000,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optical Fiber Technology","FirstCategoryId":"94","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1068520024003766","RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
We developed an advanced active phase control method for coherent beam combining using a lightweight residual neural network architecture (ResNet18), based on single local intensity patterns at non-focal plane. By estimating the phases only from a localized intensity image patch, the camera frame rate can be significantly improved, thereby ensuring more robust phase locking against larger-scale noise. Simulated experiments demonstrated that our technique achieves effective phase locking for coherent beam combination across scales of 19, 37, and 61 channels.
期刊介绍：
Innovations in optical fiber technology are revolutionizing world communications. Newly developed fiber amplifiers allow for direct transmission of high-speed signals over transcontinental distances without the need for electronic regeneration. Optical fibers find new applications in data processing. The impact of fiber materials, devices, and systems on communications in the coming decades will create an abundance of primary literature and the need for up-to-date reviews.
Optical Fiber Technology: Materials, Devices, and Systems is a new cutting-edge journal designed to fill a need in this rapidly evolving field for speedy publication of regular length papers. Both theoretical and experimental papers on fiber materials, devices, and system performance evaluation and measurements are eligible, with emphasis on practical applications.
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