Distributed humidity sensing via optical fibers with specialty acrylate coatings

IF 2.7 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology Pub Date : 2026-07-01 Epub Date: 2026-02-12 DOI:10.1016/j.yofte.2026.104589

Andrei A. Stolov, Michael J. Joyce, Matthew Popelka, Ping Lu

{"title":"Distributed humidity sensing via optical fibers with specialty acrylate coatings","authors":"Andrei A. Stolov, Michael J. Joyce, Matthew Popelka, Ping Lu","doi":"10.1016/j.yofte.2026.104589","DOIUrl":null,"url":null,"abstract":"<div><div>Specialty hydrophilic, UV-curable acrylate coatings were engineered to enable distributed humidity sensing through optical fibers. Fibers with such coatings were utilized for relative humidity (RH) sensing using Optical Frequency Domain Reflectometry (OFDR) and Brillouin Optical Time-Domain Analysis (BOTDA). At room temperature, these fibers demonstrated a 5–7 times higher sensitivity to RH in comparison with conventional polyimide-coated fibers. The sensitivity can be further enhanced by applying additional coating layers, which is doable via conventional UV-cure coating method. With the newly designed coatings, the RH-sensitivity was found to decrease with the temperature due to the coating softening effect. A novel method was introduced for simultaneous distributed measurement of humidity and temperature, employing a dual-fiber approach: one fiber with enhanced RH sensitivity and another with standard sensitivity. The proposed approach accounts for the modulus variations of the coating materials as functions of both humidity and temperature, enabling accurate decoupling of the two parameters.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"99 ","pages":"Article 104589"},"PeriodicalIF":2.7000,"publicationDate":"2026-07-01","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/S1068520026000398","RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/2/12 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}

引用次数: 0

Abstract

Specialty hydrophilic, UV-curable acrylate coatings were engineered to enable distributed humidity sensing through optical fibers. Fibers with such coatings were utilized for relative humidity (RH) sensing using Optical Frequency Domain Reflectometry (OFDR) and Brillouin Optical Time-Domain Analysis (BOTDA). At room temperature, these fibers demonstrated a 5–7 times higher sensitivity to RH in comparison with conventional polyimide-coated fibers. The sensitivity can be further enhanced by applying additional coating layers, which is doable via conventional UV-cure coating method. With the newly designed coatings, the RH-sensitivity was found to decrease with the temperature due to the coating softening effect. A novel method was introduced for simultaneous distributed measurement of humidity and temperature, employing a dual-fiber approach: one fiber with enhanced RH sensitivity and another with standard sensitivity. The proposed approach accounts for the modulus variations of the coating materials as functions of both humidity and temperature, enabling accurate decoupling of the two parameters.

查看原文本刊更多论文

通过特殊丙烯酸酯涂层的光纤进行分布式湿度传感

特殊的亲水性，紫外光固化丙烯酸酯涂层设计，使分布式湿度传感通过光纤。采用光频域反射（OFDR）和布里渊光时域分析（BOTDA）技术，利用这种涂层的光纤进行相对湿度（RH）传感。在室温下，与传统的聚酰亚胺涂层纤维相比，这些纤维对RH的灵敏度高5-7倍。通过常规的光固化镀膜方法，可以通过附加镀膜层进一步提高灵敏度。在新设计的涂层中，由于涂层的软化作用，rh敏感性随温度的升高而降低。提出了一种同时分布式测量湿度和温度的新方法，采用双光纤方法：一根光纤具有增强的相对湿度灵敏度，另一根光纤具有标准灵敏度。该方法考虑了涂层材料的模量随湿度和温度的变化，从而实现了这两个参数的精确解耦。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Optical Fiber Technology 工程技术-电信学

CiteScore

4.80

自引率

11.10%

发文量

327

审稿时长

63 days

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.