IEEE Photonics Journal最新文献_第4页

Coherent all Optical Reservoir Computing for Equalization of Impairments in Coherent Fiber Optic Communication Systems 用于相干光纤通信系统损耗均衡的相干全光存储计算

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-09-17 DOI: 10.1109/JPHOT.2024.3462438

Shiva Kumar;Mahmoud M. T. Maghrabi;Mohamed H. Bakr;Toshihiko Hirooka;Masataka Nakazawa

引用次数: 0

Novel Frame Buffer Pixel Circuits and Silicon Backplane Development for Polarization-Independent LCOS 用于偏振无关 LCOS 的新型帧缓冲器像素电路和硅背板开发

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-09-17 DOI: 10.1109/JPHOT.2024.3462889

Qirui Zhang;Isaac Zachmann;Lianhua Ji;Chongchang Mao

{"title":"Novel Frame Buffer Pixel Circuits and Silicon Backplane Development for Polarization-Independent LCOS","authors":"Qirui Zhang;Isaac Zachmann;Lianhua Ji;Chongchang Mao","doi":"10.1109/JPHOT.2024.3462889","DOIUrl":"10.1109/JPHOT.2024.3462889","url":null,"abstract":"This project aims to develop novel frame buffer pixel circuit-based silicon backplanes using 180 nm process technology for polarization-independent liquid crystal on silicon (PI-LCOS) phase modulators. Three unique pixel circuits, which exclusively utilize NMOS transistors, have been designed to minimize pixel size and improve production yield. Additionally, the \"Voltage Booster” (VBOOST) technique extends the dynamic voltage range, crucial for stable phase modulation and high grayscale. Efforts are also underway to enhance stability against voltage fluctuation by incorporating the auxiliary capacitor or refined active-driving pixel-electrode stage. The prototype silicon backplane features a 64 × 64-pixel matrix with column and row decoders for individual pixel addressing, facilitating optical testing. By employing a two-stage analog dynamic random-access memory (DRAM), the pixel circuit supports sequential data loading row by row throughout the array while simultaneously displaying previously loaded frame data. This ‘frame-at-a-time’ data refresh capability is vital for displaying images with full contrast, which is particularly advantageous for holographic and color sequential display applications. Simulation and experimental assessments on the silicon backplane chips demonstrate that these pixel circuits can support a high-resolution LCOS device with approximately 4.15 um x 4.15 um pixel pitch in the 180 nm process technology, a high voltage holding ratio exceeding 94%, and substantial grayscale modulation depth.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"16 5","pages":"1-9"},"PeriodicalIF":2.1,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10682515","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142269340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Compact, Energy Efficient Simultaneous Transmission of Analog and Different Digital Signals With a Single Ring Modulator 利用单环调制器同时传输模拟信号和不同数字信号的紧凑型高能效技术

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-09-13 DOI: 10.1109/JPHOT.2024.3460977

Mohamed I. Hosni;Younus Mandalawi;Janosch Meier;Ahmed H. Elghandour;Linjie Zhou;Thomas Schneider

引用次数: 0

Design Method for Laser Target Simulator Illumination System With High Energy Utilization and High Uniformity 高能量利用率和高均匀性激光目标模拟器照明系统的设计方法

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-09-12 DOI: 10.1109/JPHOT.2024.3459482

Huibo Shao;Lingyun Wang;Haocong Zhang;Guangxi Li;Yu Chen

{"title":"Design Method for Laser Target Simulator Illumination System With High Energy Utilization and High Uniformity","authors":"Huibo Shao;Lingyun Wang;Haocong Zhang;Guangxi Li;Yu Chen","doi":"10.1109/JPHOT.2024.3459482","DOIUrl":"10.1109/JPHOT.2024.3459482","url":null,"abstract":"In this paper, a novel design of the illumination optical system for a laser target simulator is investigated to determine the optimal relationship between the uniformity of the illumination system and the energy utilization in a laser target simulator. First, the optimal size of the fly-eye lens unit is calculated from the parameters of the DMD to improve the energy utilization of the system; second, the optimal parameters of the TIR prism group are calculated based on the size of the illuminating beam and the optimal deflection angle of the TIR prism group is analyzed, which results in the compact overall structure of the system and improves the uniformity under the premise of ensuring that there is not much change in the energy utilization; and finally, the optimal design of the illumination optics system for laser target simulators is investigated based on the Finally, based on the Scheimpflug principle, the uniformity of the illumination system is further improved by solving the deformation of the image plane caused by the insertion of the TIR prism group. The results show that the simulation results of the system's uniformity reach 96.93%, the simulation results of the energy utilization are 60.05%, and the structure is compact, and the system designed by this method can provide a good design solution to obtain high energy utilization and uniformity.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"16 5","pages":"1-7"},"PeriodicalIF":2.1,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10679047","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on Physical Layer Security Performance of Hybrid RF/FSO System Based on RIS Assistance under FSO Eavesdropping Environment FSO 窃听环境下基于 RIS 辅助的 RF/FSO 混合系统物理层安全性能研究

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-09-11 DOI: 10.1109/JPHOT.2024.3458198

Qingjie Sun;Dexian Yan;Yi Wang

{"title":"Research on Physical Layer Security Performance of Hybrid RF/FSO System Based on RIS Assistance under FSO Eavesdropping Environment","authors":"Qingjie Sun;Dexian Yan;Yi Wang","doi":"10.1109/JPHOT.2024.3458198","DOIUrl":"10.1109/JPHOT.2024.3458198","url":null,"abstract":"This paper proposes ahybrid RF/FSO system based on RIS reflection to interfere with eavesdroppers in FSO eavesdropping scenarios, and analyzes and optimizes the physical layer security performance of this communication system. In this work, the RF link experiences Nakagama-m distribution, there is a single-antenna eavesdropper E\u0000<sub>1</sub>\u0000 trying to eavesdrop on the RF link information, and the RIS reflection friendly interference signal is used to interfere with the RF link. The FSO link follows the Málaga (M) distribution. There is a single-antenna passive eavesdropper with optical eavesdropping equipment near the destination node to capture the optical signal sent by the relay and eavesdrop on the information. Based on the above communication model, we derive the Strict Positive Secrecy Capacity (SPSC) and Secure Outage Probability (SOP) under double eavesdropping, and use the Monte Carlo method to verify the correctness of the expressions. The impact of various parameters in the system on safety performance was analyzed. The results showed that the interference signal-to-noise ratio, time switching factor and energy conversion efficiency of the wireless power supply jammer, the increase in the number of RIS reflective elements, good weather conditions and better detection methods, etc. All influencing factors can improve physical layer security performance, which also lays a theoretical foundation for the application of hybrid RF/FSO systems where eavesdropping exists in both RF links and FSO links.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"16 5","pages":"1-9"},"PeriodicalIF":2.1,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10676323","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Terahertz Dual-Band Metamaterial Biosensor for Cervical-Cancer Diagnostics 用于宫颈癌诊断的太赫兹双波段超材料生物传感器

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-09-11 DOI: 10.1109/JPHOT.2024.3458455

Musa N. Hamza;Mohammad Alibakhshikenari;Bal Virdee;Muhamad A. Hamad;Salahuddin Khan;Slawomir Koziel;Ernesto Limiti

引用次数: 0

Akhmediev Breathers and Kuznetsov–Ma Solitons in the Cubic-Quintic Nonlinear Schrödinger Equation 三次-五次非线性薛定谔方程中的阿赫梅季耶夫呼吸子和库兹涅佐夫-马孤子

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-09-10 DOI: 10.1109/JPHOT.2024.3457813

Changchang Pan;Gangzhou Wu;Lei Zhang;Huicong Zhang

{"title":"Akhmediev Breathers and Kuznetsov–Ma Solitons in the Cubic-Quintic Nonlinear Schrödinger Equation","authors":"Changchang Pan;Gangzhou Wu;Lei Zhang;Huicong Zhang","doi":"10.1109/JPHOT.2024.3457813","DOIUrl":"10.1109/JPHOT.2024.3457813","url":null,"abstract":"Finite background solitons are a significant area of research in nonlinear dynamics, as they are commonly found in various complex physical systems. Understanding how finite background solitons are generated and determining the conditions required for their excitation is crucial for detecting and applying dynamic characteristics. We used the Darboux transformation method to obtain explicit analytical solutions for the Akhmediev breather, the Kuznetsov-Ma soliton, and the Peregrine soliton of the cubic-quintic nonlinear Schrödinger equation. This equation is typically used as a model to control the propagation of ultrashort pulses in highly nonlinear optical fibers. We also provide the conditions required for the existence of these different breather solutions and discuss their interesting dynamical properties, such as oscillation period, propagation direction, and peak amplitude. We systematically discuss the excitation conditions and phase diagrams of the breathers by analyzing modulation instability. These results and associated formulas can also be extended to vector or multi-component systems, the breathing dynamics of which remain to be explored.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"16 5","pages":"1-7"},"PeriodicalIF":2.1,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10675369","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Delay Jitter Analysis for VLC Under Indoor Industrial Internet of Things Scenarios 室内工业物联网场景下 VLC 的延迟抖动分析

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-09-09 DOI: 10.1109/JPHOT.2024.3456115

Shiyao Chang;Shanchi Wu;Nuo Huang;Yan-Yu Zhang;Yi-Jun Zhu;Chao Wang;Chen Gong

{"title":"Delay Jitter Analysis for VLC Under Indoor Industrial Internet of Things Scenarios","authors":"Shiyao Chang;Shanchi Wu;Nuo Huang;Yan-Yu Zhang;Yi-Jun Zhu;Chao Wang;Chen Gong","doi":"10.1109/JPHOT.2024.3456115","DOIUrl":"10.1109/JPHOT.2024.3456115","url":null,"abstract":"The delay jitter in the visible light communication (VLC) network is analyzed in this work. First, the delay jitter under single-user and multi-user scenarios is investigated and a closed-form expression is obtained, whose accuracy is verified by simulation. Second, through analyzing the delay jitter under two typical indoor light emitting diode (LED) layouts, we find that the mean user delay jitter under cellular layout is a little lower than that of square layout. Then, we study the delay jitter for mobile users, and the relationship among user movement speed, arrival rate and delay jitter in different scenarios. The delay jitter performance is evaluated assuming perfect coordinated multiple points (CoMP) transmission strategy in VLC network. Simulation results show that in the context of VLC, static users can experience an average delay jitter of up to \u0000<inline-formula><tex-math>$10^{-6}$</tex-math></inline-formula>\u0000 s, while mobile users can experience an average delay jitter of up to \u0000<inline-formula><tex-math>$10^{-5}$</tex-math></inline-formula>\u0000 s. Therefore, VLC network can provide users with good delay jitter performance and customized services to meet the higher service quality requirements of future users.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"16 5","pages":"1-15"},"PeriodicalIF":2.1,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10669786","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Hybrid Attention Mechanism and RepGFPN Method for Detecting Wall Cracks in High-Altitude Cleaning Robots 用于检测高空清洁机器人墙壁裂缝的混合注意机制和 RepGFPN 方法

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-09-03 DOI: 10.1109/JPHOT.2024.3453943

Haiqiao Liu;Lingding Li;Ya Li;Qing Long;Zhuoyu Chen

{"title":"A Hybrid Attention Mechanism and RepGFPN Method for Detecting Wall Cracks in High-Altitude Cleaning Robots","authors":"Haiqiao Liu;Lingding Li;Ya Li;Qing Long;Zhuoyu Chen","doi":"10.1109/JPHOT.2024.3453943","DOIUrl":"10.1109/JPHOT.2024.3453943","url":null,"abstract":"Aiming at the problem that cracks with different shapes and scales on the exterior walls of high buildings are difficult to detect, this paper proposed a wall crack detection method for high-altitude cleaning robots by hybridizing the GAM attention mechanism and RepGFPN. First, the GAM attention mechanism was incorporated into the YOLOV5 backbone network to reduce information and amplify global features to improve the accuracy of feature extraction. Then, the neck network incorporated the RepFPN method to improve the descriptive ability of fused multi-scale features and to increase computational efficiency. Public datasets Concrete Crack Images for Classification, Mixed VOC2007, CrackForest-dataset-master, and UCMerced_LandUse were used for experimental validation. The ablation experiment results show that the average accuracy of mAP is improved by 13.5% after introducing the GAM attention mechanism under the yolov5 s original model, while the method in this paper (GR-YOLO) continues to improve by 4.7%. The experimental results show that the average accuracy mAP of the proposed method (GR-YOLO) is 24.0%, 47.1% and 41.0% higher than that of the model yolov5s + involution, yolov5s + p2 + involution and yolov5s + p2 + involution + CBAM, respectively. The method proposed in this article can more effectively improve the accuracy of crack detection and has important application prospects.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"16 5","pages":"1-8"},"PeriodicalIF":2.1,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10663935","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

GI-POF Transmission At Different Bit Rates, Fiber Lengths and Wavelengths: 1310 and 1550 Nm 不同比特率、光纤长度和波长下的 GI-POF 传输：1310 和 1550 纳米

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-09-03 DOI: 10.1109/JPHOT.2024.3454072

Hossam Selmy;Gil Fernandes;Rogério Nogueira;Ricardo Oliveira

引用次数: 0