IEEE Photonics Journal最新文献_第2页

Laser Speckle Suppression in Augmented Reality Displays Based on Static and Low-Loss Polymer-Stabilized Liquid Crystal Screens 基于静态和低损耗聚合物稳定液晶屏幕的增强现实显示器中的激光斑点抑制功能

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-10-17 DOI: 10.1109/JPHOT.2024.3483209

Xin Jiang;Weilong Zhou;Wen Dong;Zhu Wang;Yifei Xie;Xinyue Tang;Zichun Le

{"title":"Laser Speckle Suppression in Augmented Reality Displays Based on Static and Low-Loss Polymer-Stabilized Liquid Crystal Screens","authors":"Xin Jiang;Weilong Zhou;Wen Dong;Zhu Wang;Yifei Xie;Xinyue Tang;Zichun Le","doi":"10.1109/JPHOT.2024.3483209","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3483209","url":null,"abstract":"Laser speckle caused by high coherence severely affects the image quality. The traditional optical approaches cannot effectively suppress speckles without compromising the coherence of the laser in the optical path. In this study, we develop a method in which a novel polymer-stabilized liquid crystal screen (PSLCS) was used to display images for efficient speckle suppression while preserving the coherence and high brightness of lasers. The scattering-induced fluctuations in the intensity of the light reflected from the PSLCS are evaluated to reveal decorrelation variation. The optimal parameters for suppressing speckles and obtaining a clear and high-resolution image via both laser projection and AR imaging are identified by adjusting the driving parameters. A speckle suppression efficiency of 67.34%, which exceeds that achieved by other similar methods, was achieved without using any additional optical elements. An experiment was implemented for verifying the performance of multi-plane AR imaging by a PSLCS, which, to our knowledge, is the first study to investigate the image quality and speckle suppression effect in AR imaging. The proposed cost-effective laser speckle suppression method enables high quality imaging, offering new possibilities for the application of LC-based optical materials and devices in display technology.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"16 6","pages":"1-10"},"PeriodicalIF":2.1,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10721275","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142524178","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

Development of a Spatial Resolution-Enhanced Digital-Hologram Microscope With a Liquid Crystal Phase Modulator 利用液晶相位调制器开发空间分辨率增强型数字全息显微镜

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-10-16 DOI: 10.1109/JPHOT.2024.3481418

Ha-Mong Shim;Ki-Dong Lim;Min-Kyu Park;Kwang-Hoon Lee;Jin Hyeok Kim;Sungjin Lim;Kyung-Il Joo

引用次数: 0

Evaluating Different Fluoride Glass Fibers and Topological Insulator BSTS Impact on Cortisol Sensing Utilizing SPR Sensor 利用 SPR 传感器评估不同氟化玻璃纤维和拓扑绝缘体 BSTS 对皮质醇传感的影响

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-10-15 DOI: 10.1109/JPHOT.2024.3480249

Fatemeh Abrishamian;Hiroyasu Sone;Kazuya Takimoto;Fua Yoshida;Musashi Nitta

{"title":"Evaluating Different Fluoride Glass Fibers and Topological Insulator BSTS Impact on Cortisol Sensing Utilizing SPR Sensor","authors":"Fatemeh Abrishamian;Hiroyasu Sone;Kazuya Takimoto;Fua Yoshida;Musashi Nitta","doi":"10.1109/JPHOT.2024.3480249","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3480249","url":null,"abstract":"The effects of different types of fluoride glass core fibers, from three main groups of fluorozirconate (ZrF\u00004\u0000-based), fluoroaluminate (AlF\u00003\u0000-based), and fluoroindate (InF\u00003\u0000-based) fibers, were investigated in sensing salivary cortisol utilizing surface plasmon resonance (SPR) sensors. These sensors comprised multiple layers, including fluoride glass core, metal (Ag), dielectric, and dielectric grating (SiO\u00002\u0000). The comparison was conducted to evaluate the sensor's figure of merit (FOM) and limit of detection (LOD) at 830 nm wavelength while optimizing the thickness of metal layer for different concentration of cortisol and keeping other parameters constant. The largest FOM of 20.83 RIU\u0000−1\u0000 was observed for the composition of IZBSC (40 InF\u00003\u0000-20 ZnF\u00002\u0000-15 BaF\u00002\u0000-20 SrF\u00002\u0000-5 CaF\u00002\u0000) from InF\u00003\u0000-based group, resulting in an exceptional LOD of 0.986 fg/mL with the intensity interrogation method. This represents a tremendous advancement compared to prior reported results. Furthermore, by implementing a topological insulator Bi\u00001.5\u0000 Sb\u00000.5\u0000 Te\u00001.8\u0000 Se\u00001.2\u0000 (BSTS) into this sensor with a ZBLAN fiber for the first time, the LOD was reduced to 0.54 fg/mL, demonstrating remarkable progress in cortisol sensing capability best to our knowledge.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"16 6","pages":"1-8"},"PeriodicalIF":2.1,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10716781","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579208","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

Nonlinear Frequency Conversion of Dissipative Soliton Resonance Pulses Using the Second Harmonic Generation Effect 利用二次谐波发生效应实现耗散孤子共振脉冲的非线性频率转换

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-10-10 DOI: 10.1109/JPHOT.2024.3477718

Piotr Bojęś;Piotr Jaworski;Karol Krzempek

引用次数: 0

Advancements in Underwater Optical Wireless Communication: Channel Modeling, PAPR Reduction, and Simulations With OFDM 水下光学无线通信的进展：信道建模、降低 PAPR 以及 OFDM 仿真

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-10-09 DOI: 10.1109/JPHOT.2024.3475448

Liwei Yang;Zeyang Bi;Xue Liang;Lihao Zhao;Jiade Zhang;Jingyi Peng

{"title":"Advancements in Underwater Optical Wireless Communication: Channel Modeling, PAPR Reduction, and Simulations With OFDM","authors":"Liwei Yang;Zeyang Bi;Xue Liang;Lihao Zhao;Jiade Zhang;Jingyi Peng","doi":"10.1109/JPHOT.2024.3475448","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3475448","url":null,"abstract":"Compared to underwater radio waves and acoustic communication technology, underwater optical communication technology has emerged as a technical means of underwater data and information transmission. Due to the complexity and volatility of the channel environment and the various factors that affect optical data transmission, there is no standard theoretical model for underwater optical wireless communication (UOWC). This work systematically evaluated and validated several optical attenuation models, leading to the development of an approach that significantly improves the accuracy of optical signal behavior prediction in underwater environments. The simulations using the Monte Carlo algorithm revealed critical insights into signal propagation, enabling more precise modeling of UOWC channels under varying conditions. We developed and validated a novel PTS-Clipping technique that effectively reduces PAPR by up to 15%, outperforming traditional methods and maintaining system efficiency. The novel PTS-Clipping approach achieved a reduction in OFDM signal PAPR from 11.861 dB to as low as 10.228 dB, demonstrating superior performance, particularly in high-order modulation schemes like 16-QAM, where signal integrity is critical. Theoretical analysis is combined with simulation experiments to promote a more robust and efficient UOWC system.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"16 5","pages":"1-8"},"PeriodicalIF":2.1,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10713115","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142438448","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

120 GHz Sub-2 V Thin-Film Lithium Niobate Modulators on Silicon Substrate Using Thick Capacitively Loaded Slow Wave Electrodes 使用厚电容加载慢波电极的硅基底 120 GHz 2 V 以下铌酸锂薄膜调制器

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-10-09 DOI: 10.1109/JPHOT.2024.3477311

Zhiguo Yu;Donghe Tu;Wei Yan;Huan Guan;Lei Jiang;Xuejiao Sun;Zhiyong Li

{"title":"120 GHz Sub-2 V Thin-Film Lithium Niobate Modulators on Silicon Substrate Using Thick Capacitively Loaded Slow Wave Electrodes","authors":"Zhiguo Yu;Donghe Tu;Wei Yan;Huan Guan;Lei Jiang;Xuejiao Sun;Zhiyong Li","doi":"10.1109/JPHOT.2024.3477311","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3477311","url":null,"abstract":"Electro-optic modulators with large bandwidth and low voltage are crucial for the high-baud-rate digital communication and high-carrier-frequency analog links. Recently, thin-film lithium niobate (TFLN) modulators with sub-1 V voltage and 140 GHz bandwidth have been emerged on the low permittivity substrates, such as quartz. However, on the high permittivity environment, such as silicon substrates, the bandwidth dramatically reduced to below 100 GHz even if the voltage was raised to around 3 V. We break the voltage–bandwidth trade-off limit in TFLN modulators on silicon substrates using low inductance thick metal traveling wave electrodes, which reduce RF phase index and microwave losses while preserving high EO modulation efficiency. We demonstrate a TFLN EO modulator on silicon substrate with 3 dB EO bandwidth \u0000<inline-formula><tex-math>$>$</tex-math></inline-formula>\u0000 120 GHz and half-wave voltage \u0000<inline-formula><tex-math>$(V_pi) < $</tex-math></inline-formula>\u0000 2 V. Bandwidth/\u0000<inline-formula><tex-math>$V_pi$</tex-math></inline-formula>\u0000 reach 60, which is significantly larger than traditional TFLN modulators. The proposed thin-film lithium niobate modulators offers a practical solution for the hybrid integration of silicon and lithium niobate.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"16 6","pages":"1-5"},"PeriodicalIF":2.1,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10711217","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142450992","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

Localizing Axial Dense Emitters Based on Single-Helix Point Spread Function and Deep Learning 基于单像素点展函数和深度学习的轴向密集发射器定位技术

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-10-08 DOI: 10.1109/JPHOT.2024.3476514

Yihong Ji;Danni Chen;Hanzhe Wu;Gan Xiang;Heng Li;Bin Yu;Junle Qu

引用次数: 0

ESPGD Algorithm to Improve the Convergence Speed for Adaptive Single-Mode Fiber Coupling 提高自适应单模光纤耦合收敛速度的 ESPGD 算法

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-10-07 DOI: 10.1109/JPHOT.2024.3476199

Jinjin Peng;Bo Qi;Yun Zhang;ZhenChuang Li;Yao Mao

{"title":"ESPGD Algorithm to Improve the Convergence Speed for Adaptive Single-Mode Fiber Coupling","authors":"Jinjin Peng;Bo Qi;Yun Zhang;ZhenChuang Li;Yao Mao","doi":"10.1109/JPHOT.2024.3476199","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3476199","url":null,"abstract":"The adaptive single-mode fiber (SMF) coupling technique is normally adopted since the coupling efficiency (CE) significantly determines the performance of the free-space optical communication (FSOC) systems. The stochastic parallel gradient descent (SPGD) algorithm is the most commonly used control algorithm in adaptive SMF fiber coupling system. This paper proposes an improved SPGD algorithm named estimation-based stochastic parallel gradient descent (ESPGD) algorithm to accelerate the sytem convergence when applied to a practical adaptive SMF coupling system based on fast steering mirror (FSM). Applying the perturbed voltages, FSM dynamic response and then recording the performance metrics is the basic and most time-consuming process in actual adaptive SMF coupling system control. The ESPGD algorithm uses a different gradient estimation method based on adaptive parameter estimation method. The algorithm only needs to perform this process once in one iteration while the original SPGD algorithm needs to perform it twice to obtain the estimated gradient. This greatly reduce the time consumed by one iteration of the algorithm, thereby reducing the convergence time. The simulation and experimental results show that the ESPGD algorithm reduces the system convergence time by nearly half when correcting static angular errors and more than doubles the control bandwidth when correcting sinusoidal angular jitters.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"16 6","pages":"1-7"},"PeriodicalIF":2.1,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10707185","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142517900","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

Numerical Analysis of Integrated Fabry–Perot Interferometers Based on Four Core Fiber With a Helical Phase Microdisk 基于带有螺旋相位微盘的四芯光纤的集成法布里-珀罗干涉仪的数值分析

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-10-03 DOI: 10.1109/JPHOT.2024.3474422

Yuhan Geng;Shengnan Wu;Sailing He

{"title":"Numerical Analysis of Integrated Fabry–Perot Interferometers Based on Four Core Fiber With a Helical Phase Microdisk","authors":"Yuhan Geng;Shengnan Wu;Sailing He","doi":"10.1109/JPHOT.2024.3474422","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3474422","url":null,"abstract":"The integrated Fabry-Perot (FP) interferometers structure based on four core fiber (FCF) and a helical phase-modulation microdisk (HPMD) structure is proposed. The HPMD is designed to generate π/2 phase difference between adjacent fiber cores at the end face of the FCF. Four extrinsic FP cavities are formed by the HPMD and another reflected mirror perpendicular to the fiber. The quadrature phase demodulation theory is derived and the FP cavities length can be directly calculated by the reflected intensity of the FCF. The crosstalk effect between the four cores is analyzed. In addition, the simulation results also show that the structure has strong anti-interference ability to temperature fluctuations, the sensitivity of phase difference and temperature is only 0.009 °/K. The results of phase demodulation show that the demodulation effect is better when the thickness of the phase disk is 765 nm, and the mean relative error is 0.58%. The influence of machining error of FCF on demodulation results is also analyzed. The phase demodulation relative error is 0.65% when the alignment mismatch is reach 100 μm.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"16 5","pages":"1-7"},"PeriodicalIF":2.1,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10705055","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142430815","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

Large-Area, Broadband, and Flexible Terahertz Antireflection Thin Film Based on an All-Dielectric Metasurface 基于全介电金属表面的大面积、宽带和柔性太赫兹抗反射薄膜

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-10-03 DOI: 10.1109/JPHOT.2024.3473309

Zitong Zhu;Zehua Gao;Ke Bi;Chuwen Lan

引用次数: 0