Journal of Lightwave Technology最新文献_第9页

425-Gbps/λ Dual-polarization IMDD Transceiver 425-Gbps/λ双偏振IMDD收发器

IF 4.8 1区工程技术

Journal of Lightwave Technology Pub Date : 2025-12-08 DOI: 10.1109/JLT.2025.3641117

Ying Zhao;Christopher R. Doerr;Fengyu Liu;Sivagururaman Mahadevan;Fatemeh Ghaedi Vanani;Makoto Takeshita

引用次数: 0

Scalable, Low-Loss, Broadband Multimode Silicon Optical Switch Based on Robust MZI-Based Arbitrary-to-Dual-Mode Conversion 基于稳健mzi的任意双模转换的可扩展、低损耗宽带多模硅光开关

IF 4.8 1区工程技术

Journal of Lightwave Technology Pub Date : 2025-12-08 DOI: 10.1109/JLT.2025.3641159

Lei Zhang;Chen Zhang;Jinbiao Xiao;Zhenzhao Guo;Ting Feng;Shengbao Wu

{"title":"Scalable, Low-Loss, Broadband Multimode Silicon Optical Switch Based on Robust MZI-Based Arbitrary-to-Dual-Mode Conversion","authors":"Lei Zhang;Chen Zhang;Jinbiao Xiao;Zhenzhao Guo;Ting Feng;Shengbao Wu","doi":"10.1109/JLT.2025.3641159","DOIUrl":"https://doi.org/10.1109/JLT.2025.3641159","url":null,"abstract":"Mode-division multiplexing (MDM) is a key strategy for boosting the capacity of optical interconnects, and its use in reconfigurable networks requires multimode optical switches with low loss, low crosstalk, and wide bandwidth. We propose and experimentally demonstrate a scalable, high-performance silicon multimode optical switch based on a robust Mach–Zehnder interferometer (MZI) architecture for arbitrary mode-to-dual-mode conversion. The switch integrates an arbitrary mode-to-single-mode power splitter, a passive pi phase shifter (for odd input modes), a thermo-optic phase shifter, and a single-mode-to-dual-mode combiner, enabling any guided mode in the multimode bus to be thermally switched to either the fundamental or first-order mode. A dual-mode demultiplexer then routes these modes to the desired output port. The design requires only a minimal set of fundamental building blocks, with identical intermediate component layouts for all input modes, eliminating the need for redesign when scaling to higher-order modes. By carefully engineering these components, all intermediate devices exhibit superior performance over a bandwidth exceeding 300 nm, ensuring robustness against fabrication variations and offering bandwidth advantages over existing devices. As a proof of concept, we fabricated a 1 × 2 multimode switch capable of independently routing four TE modes (TE0–TE3). Experiments show crosstalk below –18 dB across 1500–1600 nm for all modes, with a maximum modal loss of 3 dB and a switching power consumption of only 34.5 mW. Compared with existing approaches, the proposed device achieves low loss, reduced crosstalk, broader bandwidth, and improved scalability.","PeriodicalId":16144,"journal":{"name":"Journal of Lightwave Technology","volume":"44 4","pages":"1445-1453"},"PeriodicalIF":4.8,"publicationDate":"2025-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116810","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

Wavelength-Tunable Flat-Top Polarization-Diversified Fiber Loop Filter Using Variable Wave Plates 波长可调平顶偏振多样化光纤环路滤波器使用可变波片

IF 4.8 1区工程技术

Journal of Lightwave Technology Pub Date : 2025-12-05 DOI: 10.1109/JLT.2025.3640689

Jaehoon Jung;Chia-Chin Chiang;Yong Wook Lee

{"title":"Wavelength-Tunable Flat-Top Polarization-Diversified Fiber Loop Filter Using Variable Wave Plates","authors":"Jaehoon Jung;Chia-Chin Chiang;Yong Wook Lee","doi":"10.1109/JLT.2025.3640689","DOIUrl":"https://doi.org/10.1109/JLT.2025.3640689","url":null,"abstract":"Polarization-diversified loop-based fiber comb filters have required at least two wave plates per birefringence element for polarization interference to achieve continuous wavelength tunability in high-order comb spectra, including flat-top or narrowband comb spectra. By incorporating variable wave plates (VWPs) whose orientation and retardance can be arbitrarily modified, we propose a continuously wavelength-tunable flat-top polarization-diversified fiber loop (PDFL) filter that utilizes one wave plate per polarization-maintaining fiber (PMF) segment used as a birefringence element to generate polarization interference. The proposed PDFL filter consists of a fiber-pigtailed polarizing beam splitter (PBS) to form the PDFL, two PMF segments, and two VWPs, each of which is located in front of each PMF segment. The slow-axis orientation of the PMF segment directly connected to the PBS is set at 22.5° with respect to the horizontal axis of the PBS to ensure optimal visibility of the comb spectrum. Based on the Jones calculus, we theoretically derived the filter transmittance, and the orientation angle (OA) and retardance sets of the two VWPs, which can introduce continuous extra phase shifts from 0° to 360° in the flat-top transmittance function, were found from the filter transmittance. The theoretical flat-top comb spectra calculated from these OA and retardance sets could corroborate the continuous wavelength tunability of the proposed filter. In particular, the wavelength tunability was also confirmed by experimental verification.","PeriodicalId":16144,"journal":{"name":"Journal of Lightwave Technology","volume":"44 4","pages":"1485-1492"},"PeriodicalIF":4.8,"publicationDate":"2025-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116828","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

Field Trial of High-Sensitivity Forward-Transmission Sensing for Real-World Event Detection Over Live Urban Fiber Networks 高灵敏度前向传输传感在实时城市光纤网络上用于真实事件检测的现场试验

IF 4.8 1区工程技术

Journal of Lightwave Technology Pub Date : 2025-12-05 DOI: 10.1109/JLT.2025.3640654

Jian Fang;Ming-Fang Huang;Scott Kotrla;Tiejun J. Xia;Glenn A. Wellbrock;Jeffery A. Mundt;Ting Wang;Yoshiaki Aono

{"title":"Field Trial of High-Sensitivity Forward-Transmission Sensing for Real-World Event Detection Over Live Urban Fiber Networks","authors":"Jian Fang;Ming-Fang Huang;Scott Kotrla;Tiejun J. Xia;Glenn A. Wellbrock;Jeffery A. Mundt;Ting Wang;Yoshiaki Aono","doi":"10.1109/JLT.2025.3640654","DOIUrl":"https://doi.org/10.1109/JLT.2025.3640654","url":null,"abstract":"Vibration sensing based on forward transmission is an emerging topic for network protection and environmental monitoring, especially in long-haul submarine cables and urban fiber networks. However, previous field trials of this approach have mainly focused on localizing strong events under controlled or relatively quiet conditions. In this work, we investigate the capability of forward-transmission vibration sensing to detect weak signals in noisy environments. We demonstrate a high-sensitivity vibration sensing system operating over an 80-km deployed live urban fiber loop without optical amplifiers. The system is enhanced by adaptive time-frequency masking and in-band laser phase noise suppression techniques to improve sensitivity and noise robustness. It has successfully identified and localized weak real-world vibration events with peak-to-peak amplitude lower than 20 rad, such as construction activity near a manhole and even footsteps on handhole lids. Field trial results confirm its robust performance under dynamic environments, including road traffic-induced ground vibrations and aerial cable disturbances. To the best of our knowledge, this is the first demonstration of weak vibration event detection using forward transmission in urban fiber networks. It remarks a significant step towards practical distributed vibration sensing in smart city applications.","PeriodicalId":16144,"journal":{"name":"Journal of Lightwave Technology","volume":"44 3","pages":"1167-1177"},"PeriodicalIF":4.8,"publicationDate":"2025-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146071180","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

Radiation-Induced Attenuation in Standard Optical Fibers at Cryogenic Temperatures: Dose Rate, Temperature, and Photobleaching Interdependence 低温下标准光纤的辐射诱导衰减：剂量率、温度和光漂白相互依赖

IF 4.8 1区工程技术

Journal of Lightwave Technology Pub Date : 2025-12-05 DOI: 10.1109/JLT.2025.3640537

Fernando S. Fernandez;Joseph J. Schuyt;Shahna M. Haneef;Dominic A. Moseley;Bartholomew M. Ludbrook;Rodney A. Badcock

{"title":"Radiation-Induced Attenuation in Standard Optical Fibers at Cryogenic Temperatures: Dose Rate, Temperature, and Photobleaching Interdependence","authors":"Fernando S. Fernandez;Joseph J. Schuyt;Shahna M. Haneef;Dominic A. Moseley;Bartholomew M. Ludbrook;Rodney A. Badcock","doi":"10.1109/JLT.2025.3640537","DOIUrl":"https://doi.org/10.1109/JLT.2025.3640537","url":null,"abstract":"The use of optical fiber sensors in ionizing radiation environments is complicated by radiation-induced attenuations (RIAs) that cause significant signal loss as the cumulative radiation dose increases. Moreover, the RIA growth kinetics are strongly dependent on the temperature of irradiation and the wavelengths and intensities of the probe and/or photobleaching lights. Herein, we experimentally investigated the interdependence of the high-dose RIA, radiation dose rate (up to 8.7 Gy s<sup>−1</sup>), irradiation temperature (down to 15 K), and photobleaching power, in standard germanosilicate optical fibers (SMF28e+). Generally, the RIA increased as a function of dose rate and decreased as functions of temperature and photobleaching power. The experimental high-dose (i.e., saturation) RIA data were fit to a simple kinetic model with quantitative accuracy. Thus, we validate the model, demonstrating that the model accurately captures the interdependence of three key experimental parameters. Using a single set of fiber-specific constants, the saturation RIA was accurately calculated over a broad range of dose rates, temperatures, and photobleaching powers, and across distinct experiments.","PeriodicalId":16144,"journal":{"name":"Journal of Lightwave Technology","volume":"44 4","pages":"1493-1502"},"PeriodicalIF":4.8,"publicationDate":"2025-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116894","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

3D-Printed Sensor on a Multicore Fiber for Triple-Parameter Sensing 用于三参数传感的多芯光纤3d打印传感器

IF 4.8 1区工程技术

Journal of Lightwave Technology Pub Date : 2025-12-05 DOI: 10.1109/JLT.2025.3640582

Tailei Cheng;Yuhan Zhang;Bowen Zhang;Shan Gao;Yan Liu;Peng Ye;Jing Yang;Ping Li;Jinhui Shi;K. T. V. Grattan;Chunying Guan

{"title":"3D-Printed Sensor on a Multicore Fiber for Triple-Parameter Sensing","authors":"Tailei Cheng;Yuhan Zhang;Bowen Zhang;Shan Gao;Yan Liu;Peng Ye;Jing Yang;Ping Li;Jinhui Shi;K. T. V. Grattan;Chunying Guan","doi":"10.1109/JLT.2025.3640582","DOIUrl":"https://doi.org/10.1109/JLT.2025.3640582","url":null,"abstract":"Multi-core fiber (MCF), with a multichannel structure, can serve very effectively as an alternative sensing platform for measuring multiple physical parameters using a single fiber. Femtosecond laser 3D printing technology significantly improves the integration of the devices, due to high processing precision and flexibility it offers. A triple-parameter sensor based on Fabry–Pérot (FP) cavities on a multicore fiber tip was demonstrated. Three different FP cavities were fabricated by femtosecond laser 3D printing on the end faces of the three fiber cores. Temperature, humidity, and pressure were measured using a fluid-infiltrated closed microcavity, an open air-cavity, and a closed hollow cavity, respectively. The sensitivities of these devices were shown to be −182.4 pm/°C, 109 pm/% RH, and 11.24 pm/kPa respectively. This tiny fiber-tip sensor created in this way has the advantages of compact structure, small volume, ease of packaging and low cost. The sensor discussed thus enables monitoring of temperature, humidity, and pressure, and as a device has the potential to be applied in chemical manufacturing and storage, to reduce the risk of leakage and explosion of hazardous chemicals through better in situ monitoring.","PeriodicalId":16144,"journal":{"name":"Journal of Lightwave Technology","volume":"44 4","pages":"1567-1573"},"PeriodicalIF":4.8,"publicationDate":"2025-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116918","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

Spatiotemporal Source Trajectory Tracking Using Multiplexed Optomechanical Fiber-Optic FPI Sensors 基于多路光机械光纤FPI传感器的时空源轨迹跟踪

IF 4.8 1区工程技术

Journal of Lightwave Technology Pub Date : 2025-12-04 DOI: 10.1109/JLT.2025.3640121

Yanzhi Lv;Aoxue Zhang;Yuhao Xue;Bin Yin;Yaoming Wei;Xiujie Dou;Shengnan Zhou;Jiawei Wang;Yongkang Dong;Jiajun Tian

{"title":"Spatiotemporal Source Trajectory Tracking Using Multiplexed Optomechanical Fiber-Optic FPI Sensors","authors":"Yanzhi Lv;Aoxue Zhang;Yuhao Xue;Bin Yin;Yaoming Wei;Xiujie Dou;Shengnan Zhou;Jiawei Wang;Yongkang Dong;Jiajun Tian","doi":"10.1109/JLT.2025.3640121","DOIUrl":"https://doi.org/10.1109/JLT.2025.3640121","url":null,"abstract":"Low-frequency acoustic source tracking is essential for early fault diagnosis and structural health monitoring, yet conventional fiber-optic acoustic sensors that use circular diaphragms face fundamental trade-offs among radius, thickness, and material strength that limit sensitivity and robustness. This work proposes an optomechanical fiber-optic acoustic sensor employing an aluminum spiral-beams–supported diaphragm with a tunable resonant frequency, integrated into a Fabry–Pérot interferometer. Finite-element-guided design and experiments demonstrate a calibrated sensitivity of 6.127 V/Pa, a minimum detectable pressure of 51.23 <inline-formula><tex-math>${rm{mu Pa}}/sqrt {rm Hz} $</tex-math></inline-formula> at 112 Hz, and a frequency response spanning 50 Hz to 20 kHz. To enable spatiotemporal tracking, we build a four-sensor array and develop a real-time adaptive strong-tracking unscented Kalman filter (AST-UKF) pipeline that enhances TDOA-based localization under low-SNR, reverberant conditions, reconstructing moving-source trajectories with 0.88 cm RMSE. The combination of low-frequency-optimized sensing and array-level inference yields a compact, passive, and electro-magnetic interference immune platform for weak-signal detection and trajectory tracking, providing practical support for online monitoring and decision-making in industrial environments.","PeriodicalId":16144,"journal":{"name":"Journal of Lightwave Technology","volume":"44 4","pages":"1596-1603"},"PeriodicalIF":4.8,"publicationDate":"2025-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116863","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

A Thank You to All Our Reviewers A感谢我们所有的审稿人

IF 4.8 1区工程技术

Journal of Lightwave Technology Pub Date : 2025-12-04 DOI: 10.1109/JLT.2025.3629770

Doug Hargis

引用次数: 0

Long-Distance Relay-Free Interferometric Fiber-Optic Hydrophone Based on White-Light 基于白光的远距离无中继干涉光纤水听器

IF 4.8 1区工程技术

Journal of Lightwave Technology Pub Date : 2025-12-04 DOI: 10.1109/JLT.2025.3640178

Zexu Wang;Feifei Yin;Kun Xu;Yitang Dai

{"title":"Long-Distance Relay-Free Interferometric Fiber-Optic Hydrophone Based on White-Light","authors":"Zexu Wang;Feifei Yin;Kun Xu;Yitang Dai","doi":"10.1109/JLT.2025.3640178","DOIUrl":"https://doi.org/10.1109/JLT.2025.3640178","url":null,"abstract":"In practical applications, the achievement of long-distance, large-array-scale, relay-free sensing is associated with the accommodating loss of the system. The most effective way to improve it is to increase the maximum optical power entering the transmission fiber. However, this will inevitably lead to more significant fiber nonlinear effects, resulting in deterioration of the system noise performance. In comparison to the narrow-linewidth laser, the white-light suffers less from fiber nonlinear effects, and thus has a higher maximum fiber-input power. Here we present an interferometric fiber-optic hydrophone system that employs a white-light source. We develop a concise theoretical model of this scheme and elucidate the limitations of the light source factors on the minimum phase noise of the system. The experimental results show that the maximum fiber-input power of our scheme is enhanced by 11 dB to 20 dBm, and the maximum link accommodating loss is augmented by 12 dB to 70 dB in comparison to the scheme that employs a narrow-linewidth laser. A phase noise of −95.08 dB ref 1 rd/√Hz near 1 kHz is obtained at the accommodating loss of 70 dB. The proposed scheme can provide effective support for low-noise underwater detection applications in long-distance, relay-free scenarios.","PeriodicalId":16144,"journal":{"name":"Journal of Lightwave Technology","volume":"44 4","pages":"1532-1539"},"PeriodicalIF":4.8,"publicationDate":"2025-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116871","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

Four-Channel Imaging Based on Reconfigurable Metasurfaces: Hyperchaotic Encryption Under Physical Protection 基于可重构元表面的四通道成像：物理保护下的超混沌加密

IF 4.8 1区工程技术

Journal of Lightwave Technology Pub Date : 2025-12-03 DOI: 10.1109/JLT.2025.3639549

Yifan Li;Yuhan Yang;Qiegen Liu;Shuyuan Xiao;Tingting Liu

{"title":"Four-Channel Imaging Based on Reconfigurable Metasurfaces: Hyperchaotic Encryption Under Physical Protection","authors":"Yifan Li;Yuhan Yang;Qiegen Liu;Shuyuan Xiao;Tingting Liu","doi":"10.1109/JLT.2025.3639549","DOIUrl":"https://doi.org/10.1109/JLT.2025.3639549","url":null,"abstract":"Metasurfaces facilitate high-capacity optical information integration by simultaneously supporting near-field nanoprinting and far-field holography on a single platform. However, conventional multi-channel designs face critical security vulnerabilities for sensitive information due to insufficient encryption mechanisms. In this work, we propose a four-channel phase-change metasurface featuring algorithm-physical co-security—a dual-protection framework combining intrinsic metasurface physical security with chaotic encryption. Our polarization-multiplexed metasurface generates four optical imaging channels through meta-atom design, including two far-field holograms and two near-field patterns. To enhance system security, we apply Chen hyperchaotic encryption combined with the Logistic map and DNA encoding to convert near-field information into secure QR codes; far-field holograms are retained to demonstrate the metasurface’s information capacity and for attack detection. The phase-change metasurface further provides physical-layer security through its reconfigurable capability, dynamically controlling imaging channels via reversible crystalline-to-amorphous state transitions. This reconfigurability enhances anti-counterfeiting and reliability while demonstrating the physical security mechanism. The proposed metasurface achieves high-fidelity imaging, robust anti-attack performance, and independent channel control. This integrated approach pioneers a secure paradigm for high-density optical information processing.","PeriodicalId":16144,"journal":{"name":"Journal of Lightwave Technology","volume":"44 4","pages":"1430-1438"},"PeriodicalIF":4.8,"publicationDate":"2025-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116827","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