IEEE Photonics Journal最新文献_第2页

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":null,"pages":null},"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":null,"pages":null},"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

Rigorous Design Optimization of a Fiber-Enabled Polarimetric Waveguide Interferometer for Biosensing 用于生物传感的光纤偏振波导干涉仪的严格设计优化

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-10-02 DOI: 10.1109/JPHOT.2024.3472896

Samuel M. Hörmann;Gandolf Feigl;Jakob W. Hinum-Wagner;Alexander Bergmann

{"title":"Rigorous Design Optimization of a Fiber-Enabled Polarimetric Waveguide Interferometer for Biosensing","authors":"Samuel M. Hörmann;Gandolf Feigl;Jakob W. Hinum-Wagner;Alexander Bergmann","doi":"10.1109/JPHOT.2024.3472896","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3472896","url":null,"abstract":"Integrated photonic sensors have gained significant attention for biosensing applications. An especially potent design is the polarimetric waveguide interferometer, which utilizes polarization diversity for effective self-referencing. However, its implementations are held back by the need for bulky free-space optics or unreliable waveguide junctions for polarization handling. To overcome these limitations, we propose a novel concept for a compact photonic system that employs edge couplers to excite both polarizations from an optical fiber and an in-line polarizer to obtain the phase information in the fiber-based readout. Additionally, we improve the waveguide design methodology to minimize the limit of detection through balancing sensitivity with optical loss. To this end, we create a unified perturbative approach based on atomic force microscopy and ellipsometry data to model sensitivity, surface-roughness-induced scattering, absorption, and radiation. We then incorporate the coupling efficiency into a figure of merit for the combined system. Thus, we optimize the geometry of a strip waveguide on a CMOS-foundry-sourced silicon nitride platform for biosensing. Through exhaustive screening of the design space, we discover that polarization diversity simultaneously leverages high sensitivity and low overlap with sidewall roughness. Further, we present designs that eliminate the phase signal from two major noise sources: thermal and bulk refractive index fluctuations. Finally, we provide design recommendations and achieve a 5.2-fold improvement over a comparable bimodal waveguide interferometer. Thus, our aim is to design a robust, compact, sensitive, and cost-effective polarimetric waveguide interferometer through an efficient concept and an optimized design.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10704058","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447235","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

Non-Line-of-Sight Target Tracking With a Single Time Multiplexed Channel 利用单个时间复用通道进行非视距目标跟踪

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-09-30 DOI: 10.1109/JPHOT.2024.3471070

Xianmin Zheng;Tailin Li;Ke Ding;Yihan Luo

引用次数: 0

Performance Optimization of Hg1-xCdxTe Photovoltaic Detectors Under Strong Illumination Considering Temperature and Wavelength Dependencies 考虑温度和波长相关性的强光照条件下 Hg1-xCdxTe 光电探测器的性能优化

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-09-30 DOI: 10.1109/JPHOT.2024.3470871

Jiahui Chen;Wangyong Chen;Linlin Cai;Pengling Yang;Dahui Wang;Manling Shen;Xiangyang Li;Hui Qiao

{"title":"Performance Optimization of Hg1-xCdxTe Photovoltaic Detectors Under Strong Illumination Considering Temperature and Wavelength Dependencies","authors":"Jiahui Chen;Wangyong Chen;Linlin Cai;Pengling Yang;Dahui Wang;Manling Shen;Xiangyang Li;Hui Qiao","doi":"10.1109/JPHOT.2024.3470871","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3470871","url":null,"abstract":"Currently, HgCdTe detectors are advancing towards very long wavelengths and room temperature operation. However, as operating temperatures and illumination intensity increase, the performance of these detectors deteriorates, evidenced by increased dark current, reduced responsivity and detectivity, and enhanced saturation effects. These limitations significantly hinder the application of detectors for strong illumination scenarios at room temperature. In this study, we utilize compositional gradients and array electrode designs to make better trade-offs among dark current, responsivity, and saturation characteristics of HgCdTe photovoltaic detectors under mid-wave and long-wave infrared conditions. We elucidate the underlying mechanisms from the perspectives of the responsive region and the non-photosensitive area, as well as carrier motion and recombination processes. The results indicate that increasing compositional gradients are beneficial for reducing dark current, while decreasing compositional gradients are advantageous for improving responsivity. Moreover, detectors with array electrodes design achieve a peak responsivity of 1.5 A/W under 200 W/cm\u0000<sup>2</sup>\u0000 (∼1.8 mW) at room temperature, which is three times higher than the pre-optimized structure. Additionally, the peak detectivity increased by more than 20%. These research findings provide guidance for the design of future HgCdTe detectors operating under strong injection levels and at various temperatures.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10700044","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142430791","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

Reconfigurable MISO-VLC via Joint Light Source Identification and Localization Using a Receiver With Spatial LCD Filter 利用带空间 LCD 滤波器的接收器，通过联合光源识别和定位实现可重构 MISO-VLC

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-09-27 DOI: 10.1109/JPHOT.2024.3469391

Andrej Harlakin;Jan Mietzner;Peter A. Hoeher

{"title":"Reconfigurable MISO-VLC via Joint Light Source Identification and Localization Using a Receiver With Spatial LCD Filter","authors":"Andrej Harlakin;Jan Mietzner;Peter A. Hoeher","doi":"10.1109/JPHOT.2024.3469391","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3469391","url":null,"abstract":"This paper presents a novel concept for joint light source identification and localization (JLIL) with subsequent interference suppression using a liquid crystal display (LCD)-based receiver. The JLIL concept is particularly suitable for multiple-input single-output visible-light-communication settings, where an LCD-based receiver must be able to identify a desired light source before suppressing interfering ones. Given a basic visible-light-communication setup, in a first step modifications required both on the transmitter and the receiver side are identified. Subsequently, the concept for LCD-based JLIL is introduced, and its performance is illustrated by means of simulation results. In this context, intersymbol interference effects are investigated and a known ambiguity problem is overcome. Finally, results of an experimental verification are reported as a proof of concept. It is shown that the derived simulation model accurately predicts measurement results. The latter confirm a virtually error-free light source identification and precise localization within system accuracy range. Furthermore, an improved peak detection is reported. Signal-to-noise ratio measurements suggest good performance for up to \u0000<inline-formula><tex-math>$3 ,mathrm{m}$</tex-math></inline-formula>\u0000 using the developed hardware demonstrator.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10697281","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447266","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

Visible to Near-Infrared Light Integrated Photonic Components on PECVD and LPCVD SiN Platform 基于 PECVD 和 LPCVD SiN 平台的可见光至近红外集成光子元件

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-09-24 DOI: 10.1109/JPHOT.2024.3467310

Sen Yang;Zuoqin Ding;Xiao Li;Xiao Luo;Shuhua Zhai;Xiujun Zheng;Bo Wang;He Li;Zhuo Deng;Qianshi Wang;Sarp Kerman;Chang Chen

{"title":"Visible to Near-Infrared Light Integrated Photonic Components on PECVD and LPCVD SiN Platform","authors":"Sen Yang;Zuoqin Ding;Xiao Li;Xiao Luo;Shuhua Zhai;Xiujun Zheng;Bo Wang;He Li;Zhuo Deng;Qianshi Wang;Sarp Kerman;Chang Chen","doi":"10.1109/JPHOT.2024.3467310","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3467310","url":null,"abstract":"In this paper, we present our process design kits (PDKs) component performances for different wavelengths in the visible to near-infrared (VIS-NIR) range on Shanghai Industrial μTechnology Research Institute's (SITRI's) 200 mm silicon nitride (SiN) photonics platform. SiN waveguide platform has emerged as a promising technology due to its low optical loss, relatively high refractive index, and transparency across the VIS-NIR spectrum. The industrialization of SiN platforms requires matured PDKs. On SITRI's 200 mm SiN photonics platform, we developed PDKs using both Plasma-Enhanced Chemical Vapor Deposition (PECVD) and Low-Pressure Chemical Vapor Deposition (LPCVD) processes, with SiN layers of 180 nm and 150 nm thicknesses, respectively. The fabricated waveguides exhibit low propagation loss, ranging from 2.5 dB/cm to 0.34 dB/cm from 532 nm to 860 nm. Additionally, we present a low bending loss which is less than 0.06 dB/90° with a radius of 100 μm. Furthermore, the loss of the linear grating coupler (LGC) is less than 2.6 dB at 785 nm. We have also achieved low-loss splitters, including 1 × 2 multimode interference (MMI) coupler, and directional coupler (DC), with a minimum excess loss of 0.03 dB. Additionally, micro ring resonator with high quality (Q) factors of 146,000 has been demonstrated. Our work on developing these PDKs will open new opportunities for researchers and developers to design and fabricate advanced photonic devices on the SiN platform in SITRI's 200 mm fabrication line.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10691934","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142376987","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 Phase Retrieval via Improved Binary Amplitude Modulation Masks 通过改进的二进制调幅掩码实现高效相位检索

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-09-23 DOI: 10.1109/JPHOT.2024.3466565

Chao Yang;Cheng Xu;Hui Pang;Jun Lan;Lixin Zhao;Song Hu;Wei Yan;Xianchang Zhu

{"title":"Efficient Phase Retrieval via Improved Binary Amplitude Modulation Masks","authors":"Chao Yang;Cheng Xu;Hui Pang;Jun Lan;Lixin Zhao;Song Hu;Wei Yan;Xianchang Zhu","doi":"10.1109/JPHOT.2024.3466565","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3466565","url":null,"abstract":"Conventional iterative phase retrieval suffers from an inherent phase ambiguity due to limited measurement intensity. Multimodal amplitude modulation introduces physical constraints to tackle the underdetermination challenge. However, the time overhead caused by mask switching slows down the imaging speed. To increase imaging speed, we report an accelerated coded phase retrieval method by optimizing modulation masks. Compared to existing methods that require at least four patterns as inputs, the proposed method requires only three mask modulations to robustly reconstruct complex objects. The transparent pixels of the two masks partially overlap, constituting a strong constraint on the objective function. An additional random mask increases the difference between diffraction intensity patterns and ensures that the algorithm converges. The proposed method of efficient modulation using pure amplitude elements may open the door to short-wavelength high-speed complex amplitude imaging. Numerical simulations and proof-of-principle experiments have verified the feasibility of this method.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10689307","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447268","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