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Journal of Lightwave Technology Pub Date : 2025-12-11 DOI: 10.1109/JLT.2025.3641013

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Journal of Lightwave Technology Pub Date : 2025-12-11 DOI: 10.1109/JLT.2025.3641021

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Journal of Lightwave Technology Pub Date : 2025-12-11 DOI: 10.1109/JLT.2025.3641089

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Journal of Lightwave Technology Pub Date : 2025-12-11 DOI: 10.1109/JLT.2025.3641063

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Journal of Lightwave Technology Information for Authors 光波技术信息作者杂志

IF 4.8 1区工程技术

Journal of Lightwave Technology Pub Date : 2025-12-11 DOI: 10.1109/JLT.2025.3641061

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Fano Resonance of Fiber Bragg Grating for Liquid Sensing 用于液体传感的光纤布拉格光栅的范诺共振

IF 4.8 1区工程技术

Journal of Lightwave Technology Pub Date : 2025-12-11 DOI: 10.1109/JLT.2025.3642982

Vinícius Piaia;Mario R. Alves;Paulo Robalinho;Susana Silva;Orlando Frazão

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Ring-Core Fiber With Double-Layer Negative Curvature Tubes Supports 11 Highly Weakly Coupled Spin-Orbit Aligned/Anti-Aligned Modes 具有双层负曲率管的环芯光纤支持11种高度弱耦合的自旋轨道对准/反对准模式

IF 4.8 1区工程技术

Journal of Lightwave Technology Pub Date : 2025-12-10 DOI: 10.1109/JLT.2025.3642262

Miaofang Zhou;Yuhong Guan;Yan Deng;Guangtao Cao;Enduo Gao;Weiti Huang

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Portable Integrated Transceiver Architecture for Low-Cost Temperature Sensing 用于低成本温度传感的便携式集成收发器架构

IF 4.8 1区工程技术

Journal of Lightwave Technology Pub Date : 2025-12-09 DOI: 10.1109/JLT.2025.3641889

Yin Liu;Man Yu;Kai Zhang;Yifan Men;Yuzhuo Li;Jia You;Xisheng Li;Hongbing Chen

{"title":"Portable Integrated Transceiver Architecture for Low-Cost Temperature Sensing","authors":"Yin Liu;Man Yu;Kai Zhang;Yifan Men;Yuzhuo Li;Jia You;Xisheng Li;Hongbing Chen","doi":"10.1109/JLT.2025.3641889","DOIUrl":"https://doi.org/10.1109/JLT.2025.3641889","url":null,"abstract":"Temperature sensing has seen significant advancements across modern scientific applications. While fiber-optic temperature sensors (FOTS) offer multiple advantages, achieving a synergistic combination of cost-effectiveness, compact dimensions, and high integration remains a critical challenge for practical implementations. This work presents an artificial intelligence (AI)-driven solution featuring a miniaturized, cost-efficient fiber-optic leaky-mode temperature speckle sensor with integrated optoelectronic transceiver functionality. The system employs a fiber microsphere at the emission end for light source coupling and collection, while a fiber taper at the detection end facilitates modal leakage from the fiber core. Temperature-sensitive material integrated within the sensing region modulates the refractive index (RI) in response to environmental temperature variations, thereby altering the specklegram characteristics of the leaked modes. A convolutional vision transformer (ConViT)-based regression model was trained to establish quantitative mapping between speckle image features and temperature measurements. Comparative analysis demonstrated superior performance against convolutional neural network (CNN), vision transformer (Vit), and modified CNN architectures, achieving a median absolute error (MedAE) of 0.256 °C. This integrated approach effectively addresses the critical triad of cost reduction, miniaturization, and functional integration, potentially advancing the development of fiber-optic thermometry.","PeriodicalId":16144,"journal":{"name":"Journal of Lightwave Technology","volume":"44 4","pages":"1588-1595"},"PeriodicalIF":4.8,"publicationDate":"2025-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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A Detailed Investigation Into Birefringence Characteristics of a 20/400-µm Polarization Maintaining Large Mode Area Double Clad Fiber Depending on Material and Geometric Properties 20/400µm保偏大模面积双包层光纤双折射特性随材料和几何特性的详细研究

IF 4.8 1区工程技术

Journal of Lightwave Technology Pub Date : 2025-12-08 DOI: 10.1109/JLT.2025.3641699

Suh-young Kwon;Janghyun Ryu;Taeho Woo;Jaesun Kim;Ju Han Lee

{"title":"A Detailed Investigation Into Birefringence Characteristics of a 20/400-µm Polarization Maintaining Large Mode Area Double Clad Fiber Depending on Material and Geometric Properties","authors":"Suh-young Kwon;Janghyun Ryu;Taeho Woo;Jaesun Kim;Ju Han Lee","doi":"10.1109/JLT.2025.3641699","DOIUrl":"https://doi.org/10.1109/JLT.2025.3641699","url":null,"abstract":"This work systematically investigates the primary factors affecting birefringence in a 20/400 µm polarization-maintaining large-mode-area double clad fiber (PLMA DCF), which is extensively used in high-power laser applications. The fiber structure comprises a pure SiO2 cladding, a GeO2-doped core, and B2O3-doped stress-applying parts (SAPs). The finite element method (FEM) was utilized to analyze the complex relationships between material characteristics and geometric attributes. Initially, birefringence was evaluated by contrasting ideal circular cross-sections with those of elliptical geometry. The effects of SAP location and diameter on both the distribution of stress and resulting birefringence were quantitatively assessed. Furthermore, the influence of material variation was studied, focusing on the impact of SAP numerical aperture (NA) as it relates to B2O3 concentration. To mitigate deformation stemming from thermal expansion mismatch, the introduction of a Ge-Al-co-doped cap encasing the core was explored. This cap substantially lessened stress disparities between the core and adjacent materials, thereby enhancing mechanical reliability, while maintaining effective birefringence. The results offer actionable guidance for the design optimization of PLMA DCF systems.","PeriodicalId":16144,"journal":{"name":"Journal of Lightwave Technology","volume":"44 4","pages":"1512-1521"},"PeriodicalIF":4.8,"publicationDate":"2025-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Long-Distance Temporal Ghost Imaging via Temporal Correlations of a Random Fiber Laser 基于随机光纤激光器时间相关性的远距离时间鬼影成像

IF 4.8 1区工程技术

Journal of Lightwave Technology Pub Date : 2025-12-08 DOI: 10.1109/JLT.2025.3641313

Jing Zhang;Runnan Guan;Yifei Qi;Runhao Li;Wangyouyou Li;Han Wu;Yunru Fan;Qiang Zhou;Zinan Wang

{"title":"Long-Distance Temporal Ghost Imaging via Temporal Correlations of a Random Fiber Laser","authors":"Jing Zhang;Runnan Guan;Yifei Qi;Runhao Li;Wangyouyou Li;Han Wu;Yunru Fan;Qiang Zhou;Zinan Wang","doi":"10.1109/JLT.2025.3641313","DOIUrl":"https://doi.org/10.1109/JLT.2025.3641313","url":null,"abstract":"Temporal ghost imaging (TGI) reconstructs ultrafast temporal signals by correlating the intensity fluctuations of a probe laser with the integrated intensity measured after its interaction with a temporal object. While most existing studies have focused on short-range scenarios, its implementation over long distances has been less explored. In this work, we propose a long-distance TGI system based on an ultra-long random fiber laser (RFL). We experimentally demonstrate, for the first time, that strong temporal intensity correlations exist between the pump-side and remote-side outputs of such an ultra-long RFL, making it highly suitable for long-range TGI. The pump-side output serves as the probe light, which is modulated by the temporal object and then transmitted over a 50-km fiber link before being detected by a slow photodetector. High-fidelity reconstruction of the temporal object is successfully achieved at the remote side by correlating the integrated signal from the slow detector with the random intensity fluctuations of the remote-side output. Moreover, by employing compressed sensing algorithms, the number of required realizations is substantially reduced while achieving a higher peak signal-to-noise ratio (PSNR). Our work leverages the unique properties of RFLs, including their long fiber length, inherent random intensity fluctuations, and intracavity temporal correlations—for TGI applications, thereby overcoming key challenges in long-distance TGI and providing a promising new approach for highly reliable long-range optical signal processing and communication.","PeriodicalId":16144,"journal":{"name":"Journal of Lightwave Technology","volume":"44 4","pages":"1461-1467"},"PeriodicalIF":4.8,"publicationDate":"2025-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0