Optical Fiber Technology最新文献_第2页

Service provisioning for anycast requests in semi-filterless optical networks with spectrum and IT resource balancing 频谱与IT资源均衡的半无滤波器光网络中任意播业务发放

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-05-24 DOI: 10.1016/j.yofte.2025.104263

Junling Yuan , Xuyang Hao , Qiang Guo , Xuhong Li , Qikun Zhang

引用次数: 0

Dual-core fiber curvature sensor based on femtosecond laser processing 基于飞秒激光加工的双芯光纤曲率传感器

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-05-24 DOI: 10.1016/j.yofte.2025.104280

Bo-yuan Wang , Zhen-yu Yuan , Shuai-ke Li , Yu-dong Li

{"title":"Dual-core fiber curvature sensor based on femtosecond laser processing","authors":"Bo-yuan Wang , Zhen-yu Yuan , Shuai-ke Li , Yu-dong Li","doi":"10.1016/j.yofte.2025.104280","DOIUrl":"10.1016/j.yofte.2025.104280","url":null,"abstract":"<div><div>In this paper, a curvature sensor based on femtosecond laser processing of two-core fiber is proposed. The sensor uses the interference between two core modes of the two-core fiber to realize curvature sensing. According to the two-beam interference formula, the curvature sensing sensitivity and the free spectral range of the sensing structure are theoretically independent and adjustable, consequently it is more flexible. The sensor comprises single-mode fiber, no-core fiber, and two-core fiber. Femtosecond laser fabricates waveguides in no-core fiber to guide light from single-mode fiber into a two-core fiber. In order to construct the optical path difference, the end face of the two-core fiber is processed into a stepped shape using the femtosecond laser. The entire fiber structure constitutes the MI. The curvature tests of this sensor are carried out. The experimental results demonstrate that the sensor can identify a one-dimensional bending direction. Curvature is applied to the two-core fiber of different lengths. It is found that the longer the length of the bending part, the higher the sensor’s sensitivity. When the bending part of the two-core fiber is 4 cm, in the curvature range of 0 to 0.241 m<sup>−1</sup>, the curvature sensitivity of the sensor bending in different directions can reach −60.4 nm/m<sup>−1</sup> and +60.1 nm/m<sup>−1</sup>, while maintaining high linearity.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"93 ","pages":"Article 104280"},"PeriodicalIF":2.6,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient fragmentation-aware algorithms for multicast traffic in elastic optical networks with a novel demand size based fragmentation metric 基于碎片度量的弹性光网络组播流量碎片感知算法

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-05-22 DOI: 10.1016/j.yofte.2025.104233

Leila Asadzadeh , Ahmad Khonsari , Akbar Ghaffarpour Rahbar

{"title":"Efficient fragmentation-aware algorithms for multicast traffic in elastic optical networks with a novel demand size based fragmentation metric","authors":"Leila Asadzadeh , Ahmad Khonsari , Akbar Ghaffarpour Rahbar","doi":"10.1016/j.yofte.2025.104233","DOIUrl":"10.1016/j.yofte.2025.104233","url":null,"abstract":"<div><div>With flexible allocation of spectrum resources and on-demand bandwidth provisioning, Elastic Optical Networks (EONs) have made it possible to meet the high volumes of traffic demands. Multicast Routing, Modulation level and Spectrum Assignment (MRMSA) algorithms are important in efficient multicast transmissions in EONs. The dynamic nature of allocating and releasing spectral resources causes the spectrum to be divided into small empty blocks that are not suitable to be allocated anymore, so the resource utilization reduces greatly. Many metrics have been introduced in the literature to measure the amount of fragmented spectrum. In this paper, we propose a novel demand size based fragmentation metric (DemFRAG) to evaluate the suitability of the optical links or paths to establish the requests. We also propose two fragmentation-aware algorithms based on this novel metric to efficiently solve MRMSA problem in EONs. The performance of the proposed fragmentation-aware MRMSA algorithms is evaluated by considering the novel DemFRAG metric and also other fragmentation metrics in terms of Blocking Probability (BP) and Bandwidth Blocking Probability (BBP) under different network topologies. Simulation results demonstrate that the proposed MRMSA algorithms with the DemFRAG metric allow for significant reduction in BP and BBP compared to other algorithms.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"93 ","pages":"Article 104233"},"PeriodicalIF":2.6,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Generation of Sub-50 fs pulses from a 50 MHz Dispersion-Managed Figure-9 Mode-Locked fiber laser 从50mhz色散管理的图9锁模光纤激光器产生低于50fs的脉冲

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-05-22 DOI: 10.1016/j.yofte.2025.104278

Yongjian Pan , Yang Liu , Ting Ma , Yongliang Zhu

引用次数: 0

Demonstration of a cost-effective double-clad fiber-coupled laser communication terminal for short-range inter-satellite optical wireless communication system 用于近程星间光无线通信系统的高性价比双包层光纤耦合激光通信终端的论证

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-05-19 DOI: 10.1016/j.yofte.2025.104271

Yuanzhe Qu , Qianwu Zhang , Yanyi Wang , Siyu Luo , Yanhao Chen , Shiqi He , Lewei Gong , Zongbi Yu , Yuhua Lv , Jiangnan Yi , Junjie Zhang , Jian Chen , Yonghao Dou , Yingxiong Song

{"title":"Demonstration of a cost-effective double-clad fiber-coupled laser communication terminal for short-range inter-satellite optical wireless communication system","authors":"Yuanzhe Qu , Qianwu Zhang , Yanyi Wang , Siyu Luo , Yanhao Chen , Shiqi He , Lewei Gong , Zongbi Yu , Yuhua Lv , Jiangnan Yi , Junjie Zhang , Jian Chen , Yonghao Dou , Yingxiong Song","doi":"10.1016/j.yofte.2025.104271","DOIUrl":"10.1016/j.yofte.2025.104271","url":null,"abstract":"<div><div>In this paper, we present a cost-effective double-clad fiber (DCF) coupled laser communication terminal for short-range inter-satellite optical wireless communication systems. Taking advantage of the robust coupling efficiency provided by DCF, a maximum-minimum received optical power fluctuation of 5.82 dB is achieved under the condition of residual misalignment through a 4.1 km free-space link, and a real-time bidirectional digital video transmission has been successfully demonstrated. Compared with previous laser communication terminals, by saving the pre-EDFA, our design reduces the power consumption of the communication part by >18.5 % and improves the overall energy efficiency by >3 %. Consequently, the proposed DCF-coupled laser communication terminal satisfies the target scenario and shows its potential for future application.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"93 ","pages":"Article 104271"},"PeriodicalIF":2.6,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144090158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simulation analysis and experimental study on fatigue characteristics of CFRP transmission shaft CFRP传动轴疲劳特性仿真分析与试验研究

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-05-17 DOI: 10.1016/j.yofte.2025.104260

Guoping Ding , Wenchang Liu , Lu Chang

{"title":"Simulation analysis and experimental study on fatigue characteristics of CFRP transmission shaft","authors":"Guoping Ding , Wenchang Liu , Lu Chang","doi":"10.1016/j.yofte.2025.104260","DOIUrl":"10.1016/j.yofte.2025.104260","url":null,"abstract":"<div><div>Carbon Fiber Reinforced Plastic (CFRP) is widely utilized in aerospace and various other industries due to its exceptional strength, high modulus, favorable fatigue characteristics, and corrosion resistance. CFRP transmission shafts play a vital role in ensuring the reliability and stability of the transmission system. However,<em>Current research on fatigue damage and evolution mechanisms in these materials remains limited, with key challenges including overreliance on isolated analytical approaches, insufficient experimental verification, and a lack of comprehensive lifecycle health monitoring</em>. To address these problems, this article presented a simulation analysis and experimental investigation into the fatigue life, residual torsional stiffness, and fatigue damage evolution process of CFRP transmission shafts. During the torsional fatigue experiments, Fiber Bragg Grating (FBG) sensors were employed to perform distributed measurements of the complex strain field within the CFRP transmission shaft. Additionally, ultrasonic scanning technology was utilized to conduct a fatigue analysis of the CFRP transmission shafts. The results show that the error in the limit torque between the simulation and experiment is 1.89%, and the average error in fatigue life is 9.59%. The small errors, along with the consistent residual torsional stiffness and damage evolution mechanisms, verify the effectiveness of the research method.The residual torsional stiffness curve can be employed to evaluate the fatigue life of CFRP transmission shafts.The strain variations captured by the FBG sensing network correspond with the fatigue damage evolution mechanisms of the CFRP transmission shaft, enabling an assessment of the internal fatigue damage state through the strain changes detected by the FBG sensing network.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"93 ","pages":"Article 104260"},"PeriodicalIF":2.6,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

FBG sensing fusion with deep learning for damage identification in CFRP composites 基于FBG传感融合深度学习的CFRP复合材料损伤识别

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-05-16 DOI: 10.1016/j.yofte.2025.104256

Xin Xiong , Yumin Zhang , Yiqun Zhang , Zhiwei Luo

{"title":"FBG sensing fusion with deep learning for damage identification in CFRP composites","authors":"Xin Xiong , Yumin Zhang , Yiqun Zhang , Zhiwei Luo","doi":"10.1016/j.yofte.2025.104256","DOIUrl":"10.1016/j.yofte.2025.104256","url":null,"abstract":"<div><div>Carbon fiber-reinforced polymer (CFRP) materials are susceptible to latent structural damages such as delamination and matrix cracking, which can compromise their integrity and performance. Interpreting fiber Bragg grating (FBG) sensing signals is crucial for assessing the health state of CFRP materials and ensuring their long-term reliability. However, effectively analyzing these signals remains challenging due to the complex temporal dependencies within structural dynamic responses. To address this issue, this study presents a structural health monitoring (SHM) system that enhances the interpretation of FBG sensing signals using a deep learning framework. A quasi-distributed FBG sensor network is deployed to monitor the dynamic responses of CFRP materials under active loading conditions. Then proposed a one-dimensional convolutional neural network and long short-term memory (CNN-LSTM) hybrid framework to construct an advanced damage identification system. Unlike methods relying on simulated damage data, the dataset in this study is derived from real damages induced by cyclic loading, providing a more accurate representation of actual operating conditions. Experimental results demonstrate that the proposed method significantly outperforms state-of-the-art techniques, showing superior performance across various evaluation metrics compared to standalone CNN models and traditional machine learning algorithms. This approach offers an effective means of interpreting FBG sensing signals, providing a novel perspective for the SHM of CFRP materials and contributing to more reliable damage assessment and maintenance strategies.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"93 ","pages":"Article 104256"},"PeriodicalIF":2.6,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-power 2048-nm single-longitudinal-mode narrow-linewidth fiber laser based on all-fiber MOPA structure and DCDR filter 基于全光纤MOPA结构和DCDR滤波器的大功率单纵模窄线宽2048nm光纤激光器

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-05-16 DOI: 10.1016/j.yofte.2025.104269

Siyu Peng , Xiangdong Wang , Fengping Yan , Qi Qin , Ting Feng , Peng Liu , Dandan Yang , Xinbo Li , Haoyu Tan , Yuezhi Cai , Ting Li , Qiuyu Huang , Jiawen Liu , Guosheng Ge

{"title":"High-power 2048-nm single-longitudinal-mode narrow-linewidth fiber laser based on all-fiber MOPA structure and DCDR filter","authors":"Siyu Peng , Xiangdong Wang , Fengping Yan , Qi Qin , Ting Feng , Peng Liu , Dandan Yang , Xinbo Li , Haoyu Tan , Yuezhi Cai , Ting Li , Qiuyu Huang , Jiawen Liu , Guosheng Ge","doi":"10.1016/j.yofte.2025.104269","DOIUrl":"10.1016/j.yofte.2025.104269","url":null,"abstract":"<div><div>A single-longitudinal-mode (SLM) narrow-linewidth all-fiber master oscillator power amplification (MOPA) structure based on a uniform fiber Bragg grating (UFBG) and a dual-coupler dual-ring cavity (DCDR) filter is proposed and experimentally demonstrated. The experimental results show that the central wavelength of the output laser of the seed-source is 2048.37 nm, the optical signal-to-noise ratio (OSNR) is 82.82 dB, and the wavelength and power fluctuation over 60 min are less than 0.02 nm and 0.42 dB, respectively. After two-stage amplification, the output OSNR is more than 70 dB and the maximum output powers of the pre-amplifier and the main amplifier are, respectively, 4.16 W and 17.10 W. During amplification, amplified spontaneous emission (ASE) or other parasitic lasing is not observed and the output power is limited only by the power of the pump source. The laser output by the seed-source and two-stage amplification has good narrow-linewidth characteristics. It is demonstrated that the proposed MOPA structure is an excellent power amplification method; it has potential application in LiDAR and future space optical communication systems.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"93 ","pages":"Article 104269"},"PeriodicalIF":2.6,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Carrier-assisted differential detection for short-reach optical communications: Research progress and future trends 短距离光通信载波辅助差分检测：研究进展与未来趋势

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-05-15 DOI: 10.1016/j.yofte.2025.104272

Peng Qin, Jiahao Huo, Xiaoying Zhang, Haolin Bai, Wei Huangfu, Keping Long

{"title":"Carrier-assisted differential detection for short-reach optical communications: Research progress and future trends","authors":"Peng Qin, Jiahao Huo, Xiaoying Zhang, Haolin Bai, Wei Huangfu, Keping Long","doi":"10.1016/j.yofte.2025.104272","DOIUrl":"10.1016/j.yofte.2025.104272","url":null,"abstract":"<div><div>Driven by advancements in cloud computing, mobile internet, and virtual reality in the current digital era, extended range (ER) and ze best range (ZR) transmissions over long distances between data centers have created an urgent need for high-speed transmission. However, the traditional intensity modulated direct detection technique limits the transmission distance and data rate due to power degradation caused by chromatic dispersion, while the coherent detection technique is costly due to the need for high-precision local oscillator lasers. Carrier-assisted differential detection (CADD), as an emerging double sideband self-coherent detection technique, combines the advantages of low-cost and optical field recovery capability. We first introduce the fundamentals and challenges of CADD and a variety of modified CADD receivers in detail. To further optimize the performance of the CADD system, explore various SSBI mitigation schemes, including a simplified SSBI iterative algorithm and a guard band-based mitigation scheme. Also, we focus on the development of polarization multiplexing CADD and discuss the solutions based on Jones space field recovery CADD (JSFR-CADD). Compared with JSFR-CADD, we propose a low-cost polarization division multiplexing asymmetric twin-single sideband CADD (PDM-ATSSB CADD) scheme for ER and ZR transmission. Simulations verify the transmission performance of the proposed PDM-ATSSB CADD scheme over single-mode fiber, elucidating the superiority of the scheme. The research results provide an important theoretical basis and technical support for the design of high-performance and low-cost optical communication systems in short-reach ER and ZR scenarios.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"93 ","pages":"Article 104272"},"PeriodicalIF":2.6,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ZnO-PVA coated on D-shaped fiber as a refractive index sensor for isopropyl alcohol detection d型光纤涂覆ZnO-PVA作为异丙醇折射率传感器

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-05-15 DOI: 10.1016/j.yofte.2025.104266

Nik Noor Haryatul Eleena Nik Mahmud , Farra Izzany Tarmizi , Siti Noor Hamizah Adam , Afiq Arif Aminuddin Jafry , Abdul Ghafar , Wan Maryam Wan Ahmad Kamil , Siti Khadijah Mohd Bakhori

{"title":"ZnO-PVA coated on D-shaped fiber as a refractive index sensor for isopropyl alcohol detection","authors":"Nik Noor Haryatul Eleena Nik Mahmud , Farra Izzany Tarmizi , Siti Noor Hamizah Adam , Afiq Arif Aminuddin Jafry , Abdul Ghafar , Wan Maryam Wan Ahmad Kamil , Siti Khadijah Mohd Bakhori","doi":"10.1016/j.yofte.2025.104266","DOIUrl":"10.1016/j.yofte.2025.104266","url":null,"abstract":"<div><div>A ZnO-PVA-coated D-shaped fiber sensor is proposed for the detection of isopropyl alcohol (IPA) solutions. The incorporation of ZnO-PVA offers unique advantages such as a high surface-to-volume ratio, high third-order nonlinear and hydrophilic properties which enhance the sensor’s sensitivity and stability for chemical detection. Four D-shaped fibers with different insertion losses of 2.10 dB (Fiber 1), 4.25 dB (Fiber 2), 6.65 dB (Fiber 3), and 7.10 dB (Fiber 4) were fabricated and tested. All sensors exhibit red-shifted wavelength responses when exposed to different concentration IPA solutions with tuning ranges of 0.024 nm, 0.026 nm, 0.028 nm, and 0.025 nm respectively. Fiber 2 had the greatest linearity at 0.9975, surpassing Fiber 1, Fiber 3 and Fiber 4, which displayed linearity of 0.9190 0.9922 and 0.9840, respectively. The sensor achieved a linear response with excellent repeatability and rapid recovery when returned to air, showcasing its robustness for real-time IPA detection. These results highlight the potential of ZnO-PVA-coated D-shaped fiber as reliable, efficient, and high-performance sensors for chemical detection in optoelectronic and biosensing applications. Further improvement of the sensor’s sensitivity and selectivity is proposed for future work.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"93 ","pages":"Article 104266"},"PeriodicalIF":2.6,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0