IEEE Photonics Journal最新文献_第2页

Speckle Theory for Arbitrary Wavefront Illumination in Free-Space Surface Scattering 自由空间表面散射中任意波前照明的散斑理论

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2025-06-16 DOI: 10.1109/JPHOT.2025.3580173

Qiyong Xu;Janan Zhou;Yipeng Mo;Zichun Le

引用次数: 0

Phase Response Identification of Photodetectors in High-Speed Interferometry Using Photoelectric Pseudorandom Signals 基于光电伪随机信号的高速干涉中光电探测器相位响应识别

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2025-06-13 DOI: 10.1109/JPHOT.2025.3579506

Yunke Sun;Yifei Xie;Xiaotong Yan;Xu Xing;Pengcheng Hu

{"title":"Phase Response Identification of Photodetectors in High-Speed Interferometry Using Photoelectric Pseudorandom Signals","authors":"Yunke Sun;Yifei Xie;Xiaotong Yan;Xu Xing;Pengcheng Hu","doi":"10.1109/JPHOT.2025.3579506","DOIUrl":"https://doi.org/10.1109/JPHOT.2025.3579506","url":null,"abstract":"Dynamic accuracy and synchronization of high-speed interferometry are crucial for advanced manufacturing, semiconductor fabrication, and dynamic metrology, where asynchronous errors introduced by the nonlinear phase responses of photodetectors can severely degrade the measurement performance. The complex cross-physical processes make the phase responses of photodetectors challenging. Owing to their bandwidth, resolution, and test deviation limitations, the existing methods are not applicable to interferometric photodetectors. In this study, we employ a commonly available small form-factor pluggable module to generate optical pseudorandom signals as a photodetector’s excitation signals. Through correlation operations and phase spectrum analysis, the phase response of a photodetector with a 10-MHz bandwidth is identified with a model reliability of 90% and an uncertainty of 0.50° (k = 2). In practical applications, the identified phase response can help an interferometer suppress asynchronous errors to the sub-nm level within a maximum speed of 1.58 m/s. Comparative experiments verify the accuracy of the identified results and highlight substantial improvements in test precision, frequency resolution, practicality, and universality over existing methods.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"17 4","pages":"1-10"},"PeriodicalIF":2.1,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11034693","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144536571","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

Advancing OAM-Based FSO Systems: Tackling Pointing Errors for Next-Generation Space and Terrestrial Links 推进基于oam的FSO系统：解决下一代空间和地面链路的指向错误

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2025-06-12 DOI: 10.1109/JPHOT.2025.3575365

Mohammad Taghi Dabiri;Meysam Ghanbari;Mazen Hasna

{"title":"Advancing OAM-Based FSO Systems: Tackling Pointing Errors for Next-Generation Space and Terrestrial Links","authors":"Mohammad Taghi Dabiri;Meysam Ghanbari;Mazen Hasna","doi":"10.1109/JPHOT.2025.3575365","DOIUrl":"https://doi.org/10.1109/JPHOT.2025.3575365","url":null,"abstract":"Orbital Angular Momentum (OAM)-based Free-Space Optical (FSO) communication systems offer immense potential for high-capacity, secure links, but their performance is highly sensitive to pointing errors. This paper provides a comprehensive analysis of OAM systems under pointing inaccuracies for both short-range terrestrial links and long-range inter-satellite communications. For short links, we demonstrate the trade-offs between increasing modulation order and the number of OAM modes, highlighting the potential of low-complexity two-stage detectors to mitigate computational overhead while maintaining robust performance. For inter-satellite links, where severe pointing errors dominate, we propose an innovative asymmetric mode design and optimal beam waist adjustment to enhance robustness against angular misalignments. Simulation results reveal critical insights into the interplay between pointing error intensity, mode selection, and system performance, offering practical guidelines for OAM system design in diverse scenarios. This work bridges the gap between theoretical modeling and real-world implementation, paving the way for reliable OAM-based communication in next-generation terrestrial and space networks.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"17 4","pages":"1-14"},"PeriodicalIF":2.1,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11034716","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144646505","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

Micromachining Error Tolerance Analysis in EEG Sensing Nanostructure Arrays: Control of Fano Resonance for Enhanced Performance 脑电传感纳米结构阵列微加工容差分析：Fano共振控制增强性能

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2025-06-11 DOI: 10.1109/JPHOT.2025.3578629

Huicheng He;Zhanzhe Huang;Huazhen Shi;Ziying Wang;Hongxia Zhang;Dagong Jia

{"title":"Micromachining Error Tolerance Analysis in EEG Sensing Nanostructure Arrays: Control of Fano Resonance for Enhanced Performance","authors":"Huicheng He;Zhanzhe Huang;Huazhen Shi;Ziying Wang;Hongxia Zhang;Dagong Jia","doi":"10.1109/JPHOT.2025.3578629","DOIUrl":"https://doi.org/10.1109/JPHOT.2025.3578629","url":null,"abstract":"The silicon-based electroencephalography (EEG) sensing technology encounters performance limitations due to spectral distortions caused by micromachining, which significantly degrade its effectiveness in Brain-Computer Interface (BCI) systems. To enhance the performance of EEG sensors, this study systematically investigates the tolerance of micromachining errors in silicon-based nanostructured arrays, specifically focusing on photonic crystal nanobeam cavities (PCNCs) used in optical EEG sensing systems. We propose a comprehensive error control methodology that integrates finite-difference time-domain (FDTD) simulations with multivariate linear regression (MLR) analysis to quantitatively assess the impact of lithographic and alignment errors on Fano resonance spectral characteristics. Our analysis establishes critical tolerance boundaries: horizontal displacement errors must be maintained within −4.56 nm to +26.31 nm, and angular deviations should be constrained between −0.068° and +0.083°. By establishing precise tolerance boundaries, our approach effectively mitigates spectral distortion while enhancing production yield, thereby ensuring manufacturing consistency. Notably, this study aligns with the fundamental objective of precision allocation in conventional silicon nanocomponents: achieving target performance metrics with cost efficiency.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"17 4","pages":"1-13"},"PeriodicalIF":2.1,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11030254","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144472547","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

Crystal’s Self-Alignment for High Power Laser Facility Based on Machine Learning 基于机器学习的高功率激光设备Crystal自对准

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2025-06-10 DOI: 10.1109/JPHOT.2025.3578673

Yaohan Kang;Daizhong Liu;Xiuqing Jiang;Lei Gong;Xingqiang Lu;Mingying Sun

{"title":"Crystal’s Self-Alignment for High Power Laser Facility Based on Machine Learning","authors":"Yaohan Kang;Daizhong Liu;Xiuqing Jiang;Lei Gong;Xingqiang Lu;Mingying Sun","doi":"10.1109/JPHOT.2025.3578673","DOIUrl":"https://doi.org/10.1109/JPHOT.2025.3578673","url":null,"abstract":"Online alignment of harmonic conversion crystal in high-power laser facilities is a challenging and labor-intensive task. An automated technique for self-alignment of crystals on these facilities is proposed based on machine learning. The crystal alignment beam is sampled using grating diffraction. This method employs a machine learning algorithm running on a Raspberry Pi to automatically locate the reflective spot from the crystal’s back surface and adjust its position to achieve alignment. The proposed scheme comprises two modules: a rectangular spiral spot scanning search method module and an automatic spot aligning method module based on the open-source Machine-Learning Online Optimization Package (M-LOOP) algorithm. M-LOOP employs Bayesian optimization based on Gaussian process probabilistic agent model. The combination of these two modules enables automatic adjustment of the laser spot to align with the reference center, thus achieving crystal alignment. The hardware system comprises a crystal alignment optical setup, motors, a CCD camera and a Raspberry Pi. Multiplexed experiments conducted on the SG-II upgraded laser facility demonstrate that the method can complete automatic search and alignment of the crystal’s reflected spot within approximately 10 minutes. This solution addresses the limitations of traditional approaches that require manual search and adjustment of the crystal’s reflected spot for alignment.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"17 4","pages":"1-9"},"PeriodicalIF":2.1,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11030231","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144323000","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 Non-Uniformity Correction Method for Uncooled Infrared Polarization Imaging Systems 非制冷红外偏振成像系统的非均匀性校正方法

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2025-06-10 DOI: 10.1109/JPHOT.2025.3578360

Cailing Zhao;Zhiguo Fan;Yunxiang Zhang

{"title":"A Non-Uniformity Correction Method for Uncooled Infrared Polarization Imaging Systems","authors":"Cailing Zhao;Zhiguo Fan;Yunxiang Zhang","doi":"10.1109/JPHOT.2025.3578360","DOIUrl":"https://doi.org/10.1109/JPHOT.2025.3578360","url":null,"abstract":"Uncooled infrared polarization imaging systems integrate polarization components to acquire target polarization characteristics, thereby enhancing detection capabilities. However, due to the absence of a cold screen, such systems are susceptible to non-uniform internal thermal radiation exchange, which manifests as fixed pattern noise (FPN) independent of the scene during imaging. Previous non-uniformity correction (NUC) algorithms usually couple polarization information with FPN correction, resulting in the loss of polarization characteristics. To address this issue, a two-stage decoupled correction method is proposed in this paper. Firstly, a polarization response separation method (PRSM) is designed to extract the polarization response components associated with polarization channels through a blackbody radiation reference. Subsequently, a radial distance weighted fitting (RDWF) is proposed to process parametric model and compensate for FPN based on the spatial response characteristics of the optical system. Finally, the experimental results on real-world scene images demonstrate that the proposed method effectively eliminates FPN while preserving polarization information.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"17 4","pages":"1-8"},"PeriodicalIF":2.1,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11029575","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144472546","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

Generation of Dual-Frequency Microwave Pulse Based on Active Mode-Locked Optoelectronic Oscillator 基于有源锁模光电振荡器的双频微波脉冲的产生

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2025-06-10 DOI: 10.1109/JPHOT.2025.3578499

Junfeng Ren;Ping Li;Chenyang Ma;Cheng Gu;Boxiong Cui;Huitong Yang;Zhengyang Xie;Xin Zhao;Zheng Zheng

引用次数: 0

Dynamic Optical Amplifiers Enable Distributed Equalization in Optical Transmission Systems 动态光放大器实现光传输系统中的分布式均衡

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2025-06-10 DOI: 10.1109/JPHOT.2025.3578614

Hongqiang Zou;Da Liu;Kai Zhang

引用次数: 0

Mode Optimization and Polarization Control in VCSELs with Sub-Wavelength Gratings 带亚波长光栅的vcsel模式优化与偏振控制