IEEE Photonics Technology Letters最新文献

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A Programmable High-Precision Real-Time Optical Beamforming Network Based on Galois Field 基于伽罗瓦场的可编程高精度实时波束形成网络
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2025-03-26 DOI: 10.1109/LPT.2025.3554773
Jiehua Zhou;Yan Ding;Zhuo Yin;Xiaoyang Chen;Xiao Ma;Long Xiao;Cheng Lei
{"title":"A Programmable High-Precision Real-Time Optical Beamforming Network Based on Galois Field","authors":"Jiehua Zhou;Yan Ding;Zhuo Yin;Xiaoyang Chen;Xiao Ma;Long Xiao;Cheng Lei","doi":"10.1109/LPT.2025.3554773","DOIUrl":"https://doi.org/10.1109/LPT.2025.3554773","url":null,"abstract":"We propose a high-precision beam steering real-time control system that leverages optical true time delay (OTTD) based on serial <inline-formula> <tex-math>$2times 2$ </tex-math></inline-formula> optical switch differential delay pairs. The pre-designed OTTD system utilizes a three-layer structure including a host computer, main control module, and delay module, containing a set of coding rules for mapping delay to switch as well as reducing programming redundancy and a set of communication modules for on-chip communication and real-time control. To address the challenge of ultra-short fiber lengths, we introduce a method based on Galois field principles, exploiting phase periodicity. This approach allows us to determine fiber lengths without fabricating excessively short fibers, ensuring effective phase traversal and thus improving the system’s flexibility. The experimental results show that the system can switch states in real-time within 0.24 ms, with an angular deflection range of 1° between −60° and 60° in simulations, showing the potential of our method for flexible beamforming design.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 9","pages":"520-523"},"PeriodicalIF":2.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143830439","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
Optical Funnel Effect of Fiber-End Conical Shell Light Field 光纤端锥形外壳光场的光漏斗效应
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2025-03-25 DOI: 10.1109/LPT.2025.3553910
Jiahao Du;Tingting Yuan;Xiaotong Zhang;Libo Yuan
{"title":"Optical Funnel Effect of Fiber-End Conical Shell Light Field","authors":"Jiahao Du;Tingting Yuan;Xiaotong Zhang;Libo Yuan","doi":"10.1109/LPT.2025.3553910","DOIUrl":"https://doi.org/10.1109/LPT.2025.3553910","url":null,"abstract":"The manipulation and analysis of particles in fluid has always been a matter of concern. In the liquid microfluidic system, the quality of single cell flow directly affects the final analysis results. Due to its special structure, optical fiber has the advantages of simple structure and good compatibility and has become a cross-integration link in various research fields. In this letter, an integrated optical fiber structure for particle manipulation in fluid is proposed. The annular-core capillary fiber developed by the laboratory is adopted, which has the structure of cladding - annular core - air hole. The cone angle of 12° is polished at the exit end of the optical fiber. The laser transmitted by the annular core is reflected by the cone and forms a funnel-shaped cone shell light field at the end of the optical fiber, which is called ‘optical funnel’. When the particles are injected from the air hole and pass through the conical shell light field, the continuous directional control is formed due to the action of the light field force. The device has the characteristics of simple structure and high integration, which provides a solution for the miniaturization of instruments and equipment and is of great significance in engineering applications.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 8","pages":"489-492"},"PeriodicalIF":2.3,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143817789","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-Speed Physical Random Bit Generation Based on Broadband Random Optoelectronic Oscillator 基于宽带随机光电振荡器的高速物理随机比特生成
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2025-03-25 DOI: 10.1109/LPT.2025.3554647
Zhaozhao Li;Zhengkang Wang;Ruihuan Wu;Bo Li;Jiewei Chen;Weiyi Hong;Hongzhan Liu
{"title":"High-Speed Physical Random Bit Generation Based on Broadband Random Optoelectronic Oscillator","authors":"Zhaozhao Li;Zhengkang Wang;Ruihuan Wu;Bo Li;Jiewei Chen;Weiyi Hong;Hongzhan Liu","doi":"10.1109/LPT.2025.3554647","DOIUrl":"https://doi.org/10.1109/LPT.2025.3554647","url":null,"abstract":"A new approach for high-speed physical random bit generation (RBG) based on broadband random optoelectronic oscillator (OEO) is proposed and experimentally demonstrated. In this scheme, a broadband random OEO based on Rayleigh scattering (RS) is employed as the entropy source of RBG. Compared with other broadband random OEOs which require an additional pump source, the optical signal output from the laser in the proposed scheme can realize excited Brillouin scattering as well as acting as an optical carrier. Benefiting from the introduction of randomly distributed feedback by RS, which breaks the limitation of the fixed loop length of the conventional chaotic OEO, the signals generated by the proposed broadband random OEO have random characteristics. Meanwhile, the generated signals exhibit wide and flat frequency spectrum characteristics due to the avoidance of semiconductor chaotic laser relaxation oscillations. The experimental results show the proposed RBG technique can generate physical random bits with a rate of up to 500 Gb/s which can fully pass the NIST test.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 9","pages":"532-535"},"PeriodicalIF":2.3,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840093","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
Linearizing Optical Frequency Chirp of a Laser Diode for Accurate FMCW Optical Ranging 用于精确FMCW光学测距的激光二极管线性化光频啁啾
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2025-03-24 DOI: 10.1109/LPT.2025.3554238
Meng Shan;Koichi Iiyama
{"title":"Linearizing Optical Frequency Chirp of a Laser Diode for Accurate FMCW Optical Ranging","authors":"Meng Shan;Koichi Iiyama","doi":"10.1109/LPT.2025.3554238","DOIUrl":"https://doi.org/10.1109/LPT.2025.3554238","url":null,"abstract":"Optical frequency chirp of an external-cavity laser is linearized by optimizing the modulation waveform for long-range FMCW optical ranging system. The modulation signal of the laser is sampled with the interference signal of the auxiliary interferometer, and the sampled modulation signal is used as a new modulation signal. As a result, the optical frequency is linearly chirped. The linearization is realized at 50kHz modulation frequency and the measurement range of up to 66m optical fiber and up to 10m in free space. The linearity of the optical frequency chirp is evaluated by the ranging resolution and the ranging accuracy of the FMCW optical ranging system, and the ranging resolution is almost the theoretical limit, indicating that the optical frequency of the laser is highly linearly chirped.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 8","pages":"461-464"},"PeriodicalIF":2.3,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792938","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
Co-Existence of SiPh Sensing Link and Real World Traffic Over 100 m FSO Link for 6G Deployments 用于6G部署的SiPh传感链路和超过100米FSO链路的真实世界流量共存
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2025-03-24 DOI: 10.1109/LPT.2025.3554000
G. Syriopoulos;E. Kyriazi;T. Prousalidi;A. Ntanos;A. Stathis;P. Kourelias;P. Toumasis;H. Zervos;G. Giannoulis;G. Poulopoulos;H. Avramopoulos;D. Apostolopoulos
{"title":"Co-Existence of SiPh Sensing Link and Real World Traffic Over 100 m FSO Link for 6G Deployments","authors":"G. Syriopoulos;E. Kyriazi;T. Prousalidi;A. Ntanos;A. Stathis;P. Kourelias;P. Toumasis;H. Zervos;G. Giannoulis;G. Poulopoulos;H. Avramopoulos;D. Apostolopoulos","doi":"10.1109/LPT.2025.3554000","DOIUrl":"https://doi.org/10.1109/LPT.2025.3554000","url":null,"abstract":"We propose two configurations for the coexistence of sensing and communication signals, exploiting Free Space Optical (FSO) links to transmit commercial 6G traffic and remotely interrogate sensors distributed along distances of 100 m. The sensors are fabricated on a Silicon Photonics (SiPh) platform, to achieve miniaturization and highly compact form of the required features. The first scheme consists of couplers and circulators, while the second utilizes polarization handling elements to multiplex both signals, while a 100-m outdoor Free Space Optical link is utilized for both schemes. The configurations exhibit high stability, with uninterrupted transmission of traffic along the duration of the experiments, while the sensors’ performance is evaluated, with their discrepancies measured below 2%.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 9","pages":"528-531"},"PeriodicalIF":2.3,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143839919","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
Efficient Scalable MoO3 Decorated PSi Based Optical Memristor Devices 基于 MoO3 Decorated PSi 的高效可扩展光 Memristor 器件
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2025-03-24 DOI: 10.1109/LPT.2025.3554023
Sharmila B;Ashutosh Kumar Dikshit;Priyanka Dwivedi
{"title":"Efficient Scalable MoO3 Decorated PSi Based Optical Memristor Devices","authors":"Sharmila B;Ashutosh Kumar Dikshit;Priyanka Dwivedi","doi":"10.1109/LPT.2025.3554023","DOIUrl":"https://doi.org/10.1109/LPT.2025.3554023","url":null,"abstract":"This letter presents the development of wafer scalable optical memristor devices using molybdenum trioxide (MoO3) decorated porous silicon (PSi). The devices were tested with electrical and optical stimuli at room temperature. The test results have shown that the MoO3 decorated PSi based memristor offers improved performance metrics like high responsivity (826mA/W), high detectivity (<inline-formula> <tex-math>$1.08times 10^{mathbf {11}}$ </tex-math></inline-formula>Jones), fast response speed (84.1/<inline-formula> <tex-math>$80.1mu $ </tex-math></inline-formula>s), high paired pulse facilitation (PPF) index (461 %) and high endurance (100 cycles). The value of the responsivity is <inline-formula> <tex-math>$sim 3times 10^{mathbf {2}}$ </tex-math></inline-formula> times and ~4.5 times higher than PSi and MoO3 based devices respectively. The MoO3 decorated PSi device is highly repeatable, reliable and reproducible for ultrafast varying signals. These developed devices can be used for broadband light sensing as well as resistive switching applications.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 9","pages":"524-527"},"PeriodicalIF":2.3,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835370","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
Optical Fiber Sensor for Monitoring the Vibration Modes of a Metallic Plate 用于监测金属板振动模式的光纤传感器
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2025-03-21 DOI: 10.1109/LPT.2025.3553793
Eric D. Galván-Navarro;David Monzón-Hernández;Héctor Pérez-Aguilar;María del Socorro Hernández-Montes
{"title":"Optical Fiber Sensor for Monitoring the Vibration Modes of a Metallic Plate","authors":"Eric D. Galván-Navarro;David Monzón-Hernández;Héctor Pérez-Aguilar;María del Socorro Hernández-Montes","doi":"10.1109/LPT.2025.3553793","DOIUrl":"https://doi.org/10.1109/LPT.2025.3553793","url":null,"abstract":"In this work, we propose and demonstrate a frequency vibration sensor based on Multimode-Coreless-Multimode (MCM) fiber optic structure to measure the frequency of vibration modes of a metallic plate. To take advantage of the curvature sensitivity of the MCM structure, the device needs to be placed in direct contact with the structure under analysis, the vibration produces periodical changes in the curvature of the fiber that in turns modulate the intensity of the attenuation band of the MCM transmitted spectrum. In order to characterize the response of the sensor, we first measured the vibration frequencies of a loudspeaker in the range of 500 to 12500 Hz observing a percentage relative error less than 0.5 %. Then, the sensor was placed in contact with an aluminum plate of 5 cm x 5 cm x 0.3 cm. It was possible to detect the frequency of several vibration modes of the plate in a very simple way. The curvature-sensitive MCM structure is simple, easy to build, and sturdy, these features make the device a good candidate for measuring mechanical vibrations of an object.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 8","pages":"457-460"},"PeriodicalIF":2.3,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740164","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
Compact Multifunctional CWDM Arrayed Waveguide Grating Router Cascaded With Optical Switches 与光开关级联的紧凑多功能CWDM阵列波导光栅路由器
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2025-03-21 DOI: 10.1109/LPT.2025.3553693
Shuojian Zhang;Zikang Xu;Zhuping Fan;Rui Yang;Yangbo Wu;Guocai Song;Jiahui Yu;Junqiang Zhu;Jiasheng Zhao;Jian-Jun He
{"title":"Compact Multifunctional CWDM Arrayed Waveguide Grating Router Cascaded With Optical Switches","authors":"Shuojian Zhang;Zikang Xu;Zhuping Fan;Rui Yang;Yangbo Wu;Guocai Song;Jiahui Yu;Junqiang Zhu;Jiasheng Zhao;Jian-Jun He","doi":"10.1109/LPT.2025.3553693","DOIUrl":"https://doi.org/10.1109/LPT.2025.3553693","url":null,"abstract":"We present a silica-based bidirectional arrayed waveguide grating router (AWGR) chip with cascaded optical switches intended for coarse wavelength-division-multiplexing (CWDM) applications. It performs multiple functions including multi/demultiplexing, switching and wavelength routing within a compact chip size. For uplink signal, we achieved a 1 dB optical bandwidth of more than 15 nm while for downlink signal, a 3 dB optical bandwidth of 12 nm was attained. The cascaded extinction ratios of optical switches are all above 30 dB across a large wavelength range. The results demonstrate its promising potential for flexible and cost-effective CWDM systems.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 9","pages":"504-507"},"PeriodicalIF":2.3,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818023","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
Fiber Bragg Grating-Based Sensing System for Non-Destructive Root Phenotyping With ResNet Prediction 基于光纤Bragg光栅的无损根系表型传感系统与ResNet预测
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2025-03-21 DOI: 10.1109/LPT.2025.3553701
Steven Binder;Kabir Hossain;Alexander Bucksch;Mable Fok
{"title":"Fiber Bragg Grating-Based Sensing System for Non-Destructive Root Phenotyping With ResNet Prediction","authors":"Steven Binder;Kabir Hossain;Alexander Bucksch;Mable Fok","doi":"10.1109/LPT.2025.3553701","DOIUrl":"https://doi.org/10.1109/LPT.2025.3553701","url":null,"abstract":"Real-time measurements of crop root architecture can overcome limitations faced by plant breeders when developing climate-resilient plants. Due to current measurement methods failing to continuously monitor root growth in a non-destructive and scalable fashion, we propose a first in-soil sensing system based on fiber Bragg gratings (FBG). The sensing system logs three-dimensional strain generated by a growing pseudo-root. Two ResNet models confirm the utility of in-soil FBG sensors by predicting pseudo-root width and depth with accuracies of 92% and 93%, respectively. To analyze model robustness, a preliminary experiment was performed where FBGs logged strain generated from a corn plant’s roots for 30 days. The models were then retrained on new data where they achieved accuracies of 98% and 96%, respectively. Our presented prototype has potential prospects to go beyond measuring root parameters and sense its surrounding soil environment.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 8","pages":"473-476"},"PeriodicalIF":2.3,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792847","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
Narrow Bandwidth Fiber Laser Based on Carbon Nanotubes and Saturable Dynamic Induced Grating 基于碳纳米管和可饱和动态诱导光栅的窄带宽光纤激光器
IF 2.3 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2025-03-20 DOI: 10.1109/LPT.2025.3553197
Mengli Li;Wei Geng;Hongcheng Ni;Yuangang Lu
{"title":"Narrow Bandwidth Fiber Laser Based on Carbon Nanotubes and Saturable Dynamic Induced Grating","authors":"Mengli Li;Wei Geng;Hongcheng Ni;Yuangang Lu","doi":"10.1109/LPT.2025.3553197","DOIUrl":"https://doi.org/10.1109/LPT.2025.3553197","url":null,"abstract":"Narrow bandwidth mode-locked lasers serve as crucial light sources in many application domains such as spectroscopy and molecular excitation. In this Letter, we propose and experimentally demonstrate a novel narrow bandwidth mode-locked fiber laser by innovatively combining carbon nanotubes (CNTs) with saturable dynamic induced gratings (SDIGs) to achieve narrow bandwidth laser output. This mode-locked laser demonstrates outstanding performance, particularly in its capacity to achieve laser output with an extremely narrow spectral bandwidth of approximately 22.4 pm at half-maximum full width and a pulse sequence interval of 105.4 ns at a low pump threshold of 35 mW. Such characteristics endow this laser with significant advantages in a wide range of applications.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 8","pages":"493-496"},"PeriodicalIF":2.3,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143817838","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
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