IEEE Photonics Journal最新文献_第10页

Viterbi-Viterbi Carrier Phase Estimation for Multi-Ring $M$-APSK With Wiener Carrier Phase Noise and Its Performance 具有维纳载波相位噪声的多环 $M$-APSK 的维特比-维特比载波相位估计及其性能

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-06-18 DOI: 10.1109/JPHOT.2024.3415635

Qian Wang;Wenqiang Ma;Li Ping Qian;Xinwei Du;Changyuan Yu;Pooi-Yuen Kam

{"title":"Viterbi-Viterbi Carrier Phase Estimation for Multi-Ring $M$-APSK With Wiener Carrier Phase Noise and Its Performance","authors":"Qian Wang;Wenqiang Ma;Li Ping Qian;Xinwei Du;Changyuan Yu;Pooi-Yuen Kam","doi":"10.1109/JPHOT.2024.3415635","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3415635","url":null,"abstract":"High-order modulations are currently widely used in optical communications to increase the data rate. However, due to the existence of laser phase noise, the performance of high-order modulated systems will be greatly degraded. Therefore, phase estimation (PE) methods and laser linewidth tolerance analysis are particularly important in practice. In this paper, we first propose a common refined Viterbi-Viterbi carrier phase estimator for multi-ring \u0000<inline-formula><tex-math>$M$</tex-math></inline-formula>\u0000-ary amplitude phase-shift keying (\u0000<inline-formula><tex-math>$M$</tex-math></inline-formula>\u0000-APSK) with Wiener phase noise. The design is based on the linear minimum mean square error (LMMSE) criterion to optimize the weight coefficients with respect to the statistics of Wiener phase noise and additive, white, Gaussian noise. For simple implementation, approximate ring-detection-based and average-energy-based LMMSE estimators are further derived for multi-ring modulations. The laser linewidth tolerance in Wiener phase noise is analyzed thoroughly compared to the popular PE methods, e.g., decision-aided maximum likelihood and QPSK partitioning. Numerical results show in detail the receiver sensitivity penalties as a function of the estimation memory length, and verify that the proposed estimators do not suffer from the block length effect and perform much better at high signal-to-noise ratio (SNR). They are suitable for coherent demodulation of a multi-ring signal constellation in high SNR or fast-varying phase noise.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10561477","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141447994","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

Ultra-Wide-Band and Polarization-Insensitive Metamaterial Absorber With Resistive Ink Sheet for RCS Reduction Applications 用于降低 RCS 应用的超宽带、偏振不敏感超材料吸收器与电阻墨层

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-06-17 DOI: 10.1109/JPHOT.2024.3415370

Ramesh Amugothu;Vakula Damera

{"title":"Ultra-Wide-Band and Polarization-Insensitive Metamaterial Absorber With Resistive Ink Sheet for RCS Reduction Applications","authors":"Ramesh Amugothu;Vakula Damera","doi":"10.1109/JPHOT.2024.3415370","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3415370","url":null,"abstract":"This proposed work focuses on designing and evaluating planar and optimal metamaterial absorbers for radar stealth applications. The structure of the unit cell is designed using a dielectric FR4 substrate with resistive ink patterns printed on it. With the help of computational optimization using the Ansys HFSS tool, the proposed unit cell's various geometric parameters are fine-tuned to achieve outstanding results. The unit cell, which is designed with resistive ink-based lossy material printed on an FR-4 dielectric substrate, achieves a remarkable \u0000<inline-formula><tex-math>$-10$</tex-math></inline-formula>\u0000 dB reduction in reflection with a 90% fractional bandwidth between 15 and 28.9 GHz under normal incidence. Additionally, the proposed structure's dual negative feature reduces reflection by \u0000<inline-formula><tex-math>$-10$</tex-math></inline-formula>\u0000 dB for Both TE and TM polarized waves can be angled up to \u0000<inline-formula><tex-math>$60^{circ }$</tex-math></inline-formula>\u0000 across all frequencies. The design has a fourfold rotation symmetry, which enables polarization-insensitive capabilities, enhancing its versatility. Furthermore, the unit cell's various properties, including permittivity, permeability, refractive index, and impedance plots, are analyzed to assess the design. The distribution of surface current and electric field is being investigated, which further bolsters the design's credibility. The prototype is developed with a novel unit cell structure, an assortment of unit cell structures is also fabricated to enhance its functionality further, and the results are measured and presented. The experimental results match the simulated results, indicating that the proposed metamaterial absorber is an optimal solution for radar stealth applications.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10559228","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141448037","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

Laser Phase Noise Tolerant and Power-Fading-Free Hybrid Fiber-Wireless Double-Sideband Transmission With Spectral Efficiency Enhancement 提高光谱效率的激光相位噪声容限和无功率衰减混合光纤-无线双侧带传输技术

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-06-17 DOI: 10.1109/JPHOT.2024.3415354

Jiankang Li;Yuancheng Cai;Shitong Xiang;Xiaoguang Yang;Mingzheng Lei;Bingchang Hua;Jiao Zhang;Junjie Ding;Yucong Zou;Xingyu Chen;Xiang Liu;Yunwu Wang;Jianjun Yu;Min Zhu

{"title":"Laser Phase Noise Tolerant and Power-Fading-Free Hybrid Fiber-Wireless Double-Sideband Transmission With Spectral Efficiency Enhancement","authors":"Jiankang Li;Yuancheng Cai;Shitong Xiang;Xiaoguang Yang;Mingzheng Lei;Bingchang Hua;Jiao Zhang;Junjie Ding;Yucong Zou;Xingyu Chen;Xiang Liu;Yunwu Wang;Jianjun Yu;Min Zhu","doi":"10.1109/JPHOT.2024.3415354","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3415354","url":null,"abstract":"The photonics-assisted millimeter-wave (MMW) communication technology is attractive to facilitate the MMW application in the upcoming B5G and 6G networks. However, its generated MMW signal by optical heterodyne detection usually suffers from serious laser phase noise, which will severely deteriorate the system performance. In this paper, based on a single dual-drive Mach-Zehnder modulator and a single-end photodetector, we first present a simple and spectrally efficient hybrid fiber-wireless double-sideband transmission by employing an overlapping frequency multiplexing scheme. That is, two independent wireless signals with an identical carrier frequency can be simultaneously transmitted in the hybrid fiber-wireless links. To recover the above two overlapped signals, and cancel the concomitant laser phase noise at the same time, a novel digital signal processing method for carrier extraction and signal recovery is further proposed. A proof-of-concept experiment using two independent 3-GBd quadrature phase shift keying (QPSK) signals at W band (92.5 GHz) is performed. After up to 80-km fiber and 3-m wireless transmission, the two QPSK signals can be successfully demodulated, without using the traditional carrier phase estimation algorithm. The proposed scheme not only can double the spectral efficiency of conventional double sideband transmission scheme, but also is immune to its power fading phenomenon induced by chromatic dispersion and robust to the laser phase noise resulting from two free-running lasers in the photonics-assisted MMW communication link.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10559256","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141453462","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

THz Biomedical Sensing for Early Cancer Detection: Metamaterial Graphene Biosensors With Rotated Split-Ring Resonators 用于早期癌症检测的太赫兹生物医学传感：带旋转分环谐振器的超材料石墨烯生物传感器

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-06-12 DOI: 10.1109/JPHOT.2024.3413528

Marwa Rezeg;Aymen Hlali;Hassen Zairi

{"title":"THz Biomedical Sensing for Early Cancer Detection: Metamaterial Graphene Biosensors With Rotated Split-Ring Resonators","authors":"Marwa Rezeg;Aymen Hlali;Hassen Zairi","doi":"10.1109/JPHOT.2024.3413528","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3413528","url":null,"abstract":"A highly sensitive graphene-based metamaterial biosensor is proposed and analyzed for early cancer detection. The sensor design employs three circular graphene split ring resonators to achieve polarization-insensitive performance. The finite element method simulation results confirm that the designed biosensor exhibits a tunable sensing capability. The material under test covers the surface of the biosensor, where resonance occurs with high absorption. The resonance frequencies of the sensor are dependent on the optical properties of the analyte sample, enabling the device to differentiate between various cancer cell types, including skin, blood, cervical, adrenal gland, and breast cancer. Graphene's tunability is leveraged to study the effects of chemical potential, relaxation time, and temperature, with the aim of maximizing the sensor's sensitivity. The designed biosensor, which detects variations in refractive index, exhibits a maximum sensitivity of 3.880 THz/RUI, a Q-factor of 8.948, and a figure-of-merit of 8.146 RUI\u0000<inline-formula><tex-math>$^{-1}$</tex-math></inline-formula>\u0000 for healthy and cancerous cell samples. The spatial patterns of electric and magnetic fields, surface current distribution, and power flow of the proposed biosensor have been thoroughly analyzed to ensure its sensitivity and suitability for biomedical applications. The results demonstrate the potential of the THz sensor for early cancer detection.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10555126","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141474877","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 Method Combining Mobile Transmissometer and Lidar for High Precision Measurement of Visibility 结合移动透射仪和激光雷达的高精度能见度测量方法

IF 2.4 4区工程技术

IEEE Photonics Journal Pub Date : 2024-06-11 DOI: 10.1109/JPHOT.2024.3410293

Meng Li;Guojin Wang

{"title":"A Method Combining Mobile Transmissometer and Lidar for High Precision Measurement of Visibility","authors":"Meng Li;Guojin Wang","doi":"10.1109/JPHOT.2024.3410293","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3410293","url":null,"abstract":"High precision measurement of visibility has wide applications in the fields of civil aviation and maritime transportation. However, for a long time, the non-uniform of the atmosphere and optical contamination under low visibility have always been important issues affecting the measurement accuracy of visibility. This paper proposes a novel method that combines a mobile transmissometer with Lidar, which can not only accurately measure visibility in non-uniform atmospheric environments, but also effectively suppress environmental contamination by using the method of single end sampling. In this method, the mobile transmissometer is coupled with the Lidar at its baseline end, thereby effectively improving the Lidar measurement accuracy with the high-precision measurement results of the mobile transmissometer. The experimental and simulation results demonstrate that this method has better performances of anti noise and optical contamination suppression, compared to traditional Lidar and atmospheric transmissometer. It can achieve high-precision visibility measurement in a large range of non-uniform atmospheric environments, and also exhibits good robustness in low visibility environments.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10553368","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141315187","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

Sensitivity and Noise Analysis of Resonant All-Fiber Optic Current Transformers 谐振全光纤电流互感器的灵敏度和噪声分析

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-06-11 DOI: 10.1109/JPHOT.2024.3412237

Zhiguo Jiang;Lixi Zhang;Guozhong Wang;Lijun Jin

{"title":"Sensitivity and Noise Analysis of Resonant All-Fiber Optic Current Transformers","authors":"Zhiguo Jiang;Lixi Zhang;Guozhong Wang;Lijun Jin","doi":"10.1109/JPHOT.2024.3412237","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3412237","url":null,"abstract":"The sensitivity and noise of an all-fiber optic current transformer (AFOCT) scheme named resonant AFOCT are analyzed, which senses the current information by measuring the frequency difference between clockwise and counterclockwise resonances inside a fiber ring resonator (FRR). Compared with polarization-type and interference-type AFOCT, the sensitivity of the resonant AFOCT can be improved by increasing the finesse of the FRR. The mathematical model of the resonant AFOCT is established, and the sensitivity expression of the resonant AFOCT limited by the sensitivity of the photodetector is derived. For the small current measurement of 1 mA level, the carrier suppression level of phase modulation is required to be better than \u0000<inline-formula><tex-math>${{rho }_{text{ccw}}}{{rho }_{text{cw}}}{rm{ = }} - mathrm{110 , dB}$</tex-math></inline-formula>\u0000, and the intensity of unwanted polarization eigenstate of the FRR should be suppressed to less than −68 dBm. The non-ideal characteristics of fiber quarter-waveplate and the residual linear birefringence of spun fiber mainly affect the scale factor of the resonant AFOCT. The resonant AFOCT will be an important way to achieve high-precision of the current transformer.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10552908","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141583603","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 Self-Amplified Near-Infrared Bipolar Phototransistor With a PbSe Nanoband Array Heterostructure for Pharmaceutical Solute Detection 用于药用溶质检测的具有 PbSe 纳米带阵列异质结构的自放大近红外双极光电晶体管

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-06-11 DOI: 10.1109/JPHOT.2024.3412201

Yujie Fu;Chun Lei;Long Teng;Yongbing Zhu;Liyao Jiang;Yuqin Cai;Dandan Zhou;Zhi Tao

引用次数: 0

Spatial Constellation Design for MIMO Visible Light Communication Based on the Optimal Geometric Shaping 基于最佳几何形状的多输入多输出可见光通信空间星座设计

IF 2.4 4区工程技术

IEEE Photonics Journal Pub Date : 2024-06-10 DOI: 10.1109/JPHOT.2024.3411613

Jia-Ning Guo;Jian Zhang

引用次数: 0

Statistical Recognition of OAM States in Free-Space Optical System 自由空间光学系统中 OAM 状态的统计识别

IF 2.4 4区工程技术

IEEE Photonics Journal Pub Date : 2024-06-07 DOI: 10.1109/JPHOT.2024.3410931

Qinnan Zhu;Guowei Yang;Zhiyu Yuan;Meihua Bi;Xuefang Zhou;Miao Hu

{"title":"Statistical Recognition of OAM States in Free-Space Optical System","authors":"Qinnan Zhu;Guowei Yang;Zhiyu Yuan;Meihua Bi;Xuefang Zhou;Miao Hu","doi":"10.1109/JPHOT.2024.3410931","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3410931","url":null,"abstract":"The orbital angular momentum (OAM) states are used for OAM modulation and OAM multiplexing in free-space optical (FSO) communication systems to enhance the transmission quality and capacity. Although a few impactful methods had been developed to measure static OAM states, the fast and accurate recognition of dynamic OAM states in FSO communications remains a challenge due to the OAM crosstalk easily induced by the atmospheric turbulence. In this paper, we present a new simple statistical recognition method realized by utilizing the turbulence-induced crosstalk distribution, other than the routine way to use the spatial intensity patterns. The proposed method is based on acquiring the priori OAM crosstalk distribution of the training optical data, and then using similarity analysis to recognize the OAM states of the information optical data. Its availability and accuracy are validated through the computer simulations. The recognition accuracy under relatively strong turbulence conditions can be improved by using wavefront compensation and specific distance calculation.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10552050","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141326242","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

Efficient Polarization-Insensitive All-Fiber Wavelength Conversion in C-Band Using Feedback in Highly Non-Linear Fibers 利用高非线性光纤中的反馈实现 C 波段中对偏振不敏感的高效全光纤波长转换

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-06-07 DOI: 10.1109/JPHOT.2024.3411039

Anadi Agnihotri;Arunabh Deka;Pradeep Kumar Krishnamurthy

{"title":"Efficient Polarization-Insensitive All-Fiber Wavelength Conversion in C-Band Using Feedback in Highly Non-Linear Fibers","authors":"Anadi Agnihotri;Arunabh Deka;Pradeep Kumar Krishnamurthy","doi":"10.1109/JPHOT.2024.3411039","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3411039","url":null,"abstract":"We propose and experimentally demonstrate a novel dual-pump feedback-based polarization-insensitive wavelength conversion technique using four-wave mixing (FWM) in highly nonlinear fiber (HNLF). By feeding the residual pumps at the output of the HNLF back to the fiber in orthogonal polarization state with respect to the original forward path pumps, we achieve approximately 6 dB improvement in FWM conversion efficiency with negligible polarization sensitivity. A simple theoretical treatment of polarization independent operation is presented. The experimental results closely match the theory and simulation results. Comprehensive comparisons with co-polarized dual pumps, orthogonal pumps, and single pump schemes highlight the significant reduction in polarization sensitivity from over 8 dB in the single pump scheme to approximately 0.7 dB, by the proposed scheme. As an application to the proposed technique, we experimentally demonstrate successful wavelength conversion of 10 and 20 Gbps 4-PAM format signals from 1552.58 nm to 1554.28 nm.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10551913","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141474898","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