IEEE Photonics Technology Letters最新文献_第6页

Broadband On-Chip Three Mode (De) Multiplexer Using SWG-Asymmetric Adiabatic Coupling 采用swg非对称绝热耦合的宽带片上三模（De）多路复用器

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-04-03 DOI: 10.1109/LPT.2025.3556783

Rajarshi Guchhait;Shamsul Hassan;Devendra Chack;Gaurav Kumar

引用次数: 0

Performance-Enhanced Digital Mobile Fronthaul Based on Long-Span Hollow-Core Anti-Resonant Fiber 基于大跨度空心抗谐振光纤的性能增强数字移动前传

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-04-01 DOI: 10.1109/LPT.2025.3556731

Hui Chen;Lei Zhang;Qibing Wang;Xu Zhang;Siyue Jin;Jie Luo;Lei Wang;Zhixue He

引用次数: 0

Bandwidth Characteristics of a Graphene/Silicon Schottky-Junction Photodetector 石墨烯/硅肖特基结光电探测器的带宽特性

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-04-01 DOI: 10.1109/LPT.2025.3556025

Wangheng Pan;Zongwen Li;Anran Wang;Pengfei Zhao;Hu Chen;Zhixiang Zhang;Yi Shi;Yang Xu;Fengqiu Wang

{"title":"Bandwidth Characteristics of a Graphene/Silicon Schottky-Junction Photodetector","authors":"Wangheng Pan;Zongwen Li;Anran Wang;Pengfei Zhao;Hu Chen;Zhixiang Zhang;Yi Shi;Yang Xu;Fengqiu Wang","doi":"10.1109/LPT.2025.3556025","DOIUrl":"https://doi.org/10.1109/LPT.2025.3556025","url":null,"abstract":"Graphene/silicon (Gr/Si) heterostructure has emerged as a promising approach for high-performance broadband photodetectors. However, it is often the case that devices of similar structures exhibit bandwidths that differ by orders of magnitude. Moreover, the relatively large photosensitive area combined with multiple operation modes make it imperative to understand the in-plane bandwidth characteristics of such devices. Here, we conducted a thorough investigation of the in-plane bandwidth distribution and the focal-condition-dependent bandwidth characteristics in an exemplar Gr/Si Schottky-junction photodetector with a large lateral dimension (<inline-formula> <tex-math>$sim 640~mu $ </tex-math></inline-formula>m). It is found that the bandwidth as deduced by the 0.35/<inline-formula> <tex-math>$tau _{mathrm {FWHM}}$ </tex-math></inline-formula> method can better depict the high-frequency transient response of the device than the more conventional S21 bandwidth. Additionally, influence of illumination area and excitation power density on the response time has been characterized. Our study helps clarify two commonly used bandwidth figures of merit, and suggests that more analysis of the in-plane bandwidth characteristics may lead to updated design guidelines for photosensitive devices.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 8","pages":"485-488"},"PeriodicalIF":2.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143817837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

High-Power Near Flat-Top Distributed Ultraviolet 330 nm Laser for Photochemical Synthesis 用于光化学合成的大功率近平顶分布紫外330nm激光器

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-04-01 DOI: 10.1109/LPT.2025.3556005

Qian Ti;Fei Yang;Huan Wang;Da-Fu Cui;Chuan Guo;Qi Bian;Chen Wang;Yong Bo;Qin-Jun Peng

引用次数: 0

Optimized Quantum Random Number Generator for Single Photon LiDAR Interference Suppression 用于抑制单光子激光雷达干扰的优化量子随机数发生器

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-03-31 DOI: 10.1109/LPT.2025.3555856

Yicheng Wang;Xing Yang;Hao Pan;Yunhui Guo;Lei Zuo;Yuwei Chen

引用次数: 0

Efficient Chiral Nonlinear Metasurface Based on Lithium Niobate 基于铌酸锂的高效手性非线性超表面

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-03-31 DOI: 10.1109/LPT.2025.3556515

Xudong Hu;Rongquan Chen;Wei Wang;Yuqing Song;Xixi Chu;Hanfeng Wei;Jinbiao Liu;Ming Chen

引用次数: 0

In-Sensor Convolutional Computation Based on Retina-Inspired Infrared Photodetector Array 基于视网膜启发红外探测器阵列的传感器内卷积计算

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-03-31 DOI: 10.1109/LPT.2025.3555798

Hongyi Lin;Xinyu Ma;Xiaoyong Jiang;Xiangyang Shi;Minxia Xu;Yutong Li;Siyu Long;Yi Dong;Qing Li;Ting He;Fang Zhong;Ning Li;Wei Lu;Weida Hu;Jinshui Miao

{"title":"In-Sensor Convolutional Computation Based on Retina-Inspired Infrared Photodetector Array","authors":"Hongyi Lin;Xinyu Ma;Xiaoyong Jiang;Xiangyang Shi;Minxia Xu;Yutong Li;Siyu Long;Yi Dong;Qing Li;Ting He;Fang Zhong;Ning Li;Wei Lu;Weida Hu;Jinshui Miao","doi":"10.1109/LPT.2025.3555798","DOIUrl":"https://doi.org/10.1109/LPT.2025.3555798","url":null,"abstract":"In the field of infrared detection, as the resolution of detection wavelengths and spatial imaging improves, traditional architectures that separate sensing and processing struggle to meet the exponentially growing demands of machine vision. Inspired by the human visual system, which performs preprocessing on the retina to reduce the burden of information transmission, we propose an MSM (metal/semiconductor-InGaAs/metal) structure retina-inspired infrared photodetector. This detector allows the modulation of response polarity and amplitude by adjusting the bias voltage, enabling a range of preprocessing operations inside the detector. The Au/InGaAs/Au retinal-like detector exhibits tunable positive and negative photoresponses in the short-wave infrared region, with a response speed of up to 490 ns, facilitating ultra-fast image information preprocessing. We propose a <inline-formula> <tex-math>$16times 16$ </tex-math></inline-formula> in-sensor computing hardware system capable of deploying various convolution kernels directly inside the detector to perform convolution operations, offering a unique opportunity for lightweight convolutional neural network hardware.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 9","pages":"541-544"},"PeriodicalIF":2.3,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143865319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Polarization-Dependent Loss Mitigation via Orthogonal Design Precoding and Interference Cancellation 基于正交设计预编码和干扰抵消的极化相关损耗抑制

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-03-28 DOI: 10.1109/LPT.2025.3555919

Mohannad Shehadeh;Frank R. Kschischang

引用次数: 0

Beam Jitter Suppression Method for Large-Aperture Tip-Tilt Mirrors With Non-Negligible Resonance 具有不可忽略共振的大口径倾斜反射镜的光束抖动抑制方法

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-03-26 DOI: 10.1109/LPT.2025.3554761

Sicheng Guo;Tao Cheng;Kangjian Yang;Lingxi Kong;Shuai Wang;Ping Yang

引用次数: 0

Low-Loss and Robust Arc-Discharge Fusion-Splicing Between Anti-Resonant Hollow-Core Fibers 抗共振中空芯纤维间的低损耗、稳健放电弧熔接技术

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-03-26 DOI: 10.1109/LPT.2025.3554394

Junjie Zeng;Cong Zhang;Yue Wang;Peng Li;Lei Zhang;Jie Luo;Lipeng Feng;Di Lin;Songnian Fu;Yuwen Qin

{"title":"Low-Loss and Robust Arc-Discharge Fusion-Splicing Between Anti-Resonant Hollow-Core Fibers","authors":"Junjie Zeng;Cong Zhang;Yue Wang;Peng Li;Lei Zhang;Jie Luo;Lipeng Feng;Di Lin;Songnian Fu;Yuwen Qin","doi":"10.1109/LPT.2025.3554394","DOIUrl":"https://doi.org/10.1109/LPT.2025.3554394","url":null,"abstract":"Fusion splicing between anti-resonant hollow-core fibers (AR-HCFs) is the key enabler that opens practical applications of those fibers in low-latency and low-loss fiber optical communication. Here, the impact of angular misalignment and fiber overlap on the splicing loss, higher-order modes (HOMs) excitation, and polarization-dependent loss (PDL) of commonly-used AR-HCF with 5-nested tubes are comprehensively characterized. Simulation and experimental results reveal that the misalignment angle can introduce a maximum coupling loss of 0.12 dB while having almost no impact on HOMs excitation and PDL variation. Then, under the condition of perfect angular alignment, the parameter of fiber overlap during the splicing is optimized, and an average splicing loss of 0.05 dB over 10 times experiment is obtained, which is equivalent to the loss result of standard single mode fiber (SSMF) splicing. Spectral analysis shows that the normalized LP11 mode power has a slight increase from -31.62 dB to -28.33 dB, and the variation in PDL is less than 0.01 dB under the optimal fiber overlap of <inline-formula> <tex-math>$8~mu $ </tex-math></inline-formula>m, indicating that no structural deformation of AR-HCF thin tubes is introduced during the fusion splicing. Moreover, the mechanical robustness of the splicing is examined with a standard proof test returning a damage threshold of 250 gf @1 s. Our proposed fusion splicing technique can be extended to various AR-HCFs, providing the benefit of low-loss, robust, and repeatable interconnection between AR-HCFs.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 8","pages":"465-468"},"PeriodicalIF":2.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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