IEEE Photonics Journal最新文献_第9页

Design Principles and Performance Limitation of InGaN Nanowire Photonic Crystal Micro-LEDs InGaN 纳米线光子晶体微型 LED 的设计原理和性能限制

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-12-04 DOI: 10.1109/JPHOT.2024.3511344

Yakshita Malhotra;Xianhe Liu;Zetian Mi

引用次数: 0

Advanced Bends and Micro Ring Resonators in Silicon Nitride Photonic Waveguides for C-Band c波段氮化硅光子波导中的先进弯管和微环谐振器

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-11-29 DOI: 10.1109/JPHOT.2024.3509312

Jeong Hwan Song;Tangla D. Kongnyuy;Mathias Prost;Aritrio Bandyopadhyay;Sarvagya Dwivedi;Diego Carbajal Altamirano;Cian Cummins;Sandeep Seema Saseendran;Philippe Helin;Joost Brouckaert;Marcus Dahlem

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Non-Volatile Reconfigurable Optical Digital Diffractive Neural Network Based on Phase Change Material 基于相变材料的非易失可重构光学数字衍射神经网络

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-11-28 DOI: 10.1109/JPHOT.2024.3508052

Qiaomu Hu;Jingyu Zhao;Chu Wu;Rui Zeng;Xiaobing Zhou;Shuang Zheng;Minming Zhang

{"title":"Non-Volatile Reconfigurable Optical Digital Diffractive Neural Network Based on Phase Change Material","authors":"Qiaomu Hu;Jingyu Zhao;Chu Wu;Rui Zeng;Xiaobing Zhou;Shuang Zheng;Minming Zhang","doi":"10.1109/JPHOT.2024.3508052","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3508052","url":null,"abstract":"Optical diffractive neural networks have sparked extensive research due to their low power consumption and high-speed capabilities in image processing. Here we propose and design a reconfigurable all-optical diffractive neural network structure with digital non-volatile optical neurons. The optical neurons are built with Sb\u00002\u0000Se\u00003\u0000 phase-change material and can switch between crystalline and amorphous states with no constant energy supply. Using three reconfigurable non-volatile digital diffractive layers and 10 photodetectors connected to a reconfigurable resistor network, our model achieves an accuracy of 94.46% in the handwritten digit recognition task. Moreover, the fabrication and assembly robustness of the proposed optical diffractive neural network is verified through full-vector diffractive simulation. Thanks to its reconfigurability and low energy supply, the digital optical diffractive neural network holds great potential to facilitate a programmable and low-power-consumption photonic processor for optical-artificial-intelligence.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"16 6","pages":"1-8"},"PeriodicalIF":2.1,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10770557","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142777729","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

Correlation Between Recombination Dynamics and Quantum Barrier Thickness in InGaN-Based Micro-LEDs 基于ingan的微型led中复合动力学与量子势垒厚度的关系

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-11-27 DOI: 10.1109/JPHOT.2024.3506779

Mengyue Mo;Ying Jiang;Penggang Li;Zhiqiang Liu;Xu Yang;Weifang Lu;Jinchai Li;Kai Huang;Junyong Kang;Rong Zhang

{"title":"Correlation Between Recombination Dynamics and Quantum Barrier Thickness in InGaN-Based Micro-LEDs","authors":"Mengyue Mo;Ying Jiang;Penggang Li;Zhiqiang Liu;Xu Yang;Weifang Lu;Jinchai Li;Kai Huang;Junyong Kang;Rong Zhang","doi":"10.1109/JPHOT.2024.3506779","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3506779","url":null,"abstract":"To tackle the efficiency droop, we employed an epitaxial structure engineering approach and utilized SimuLED software to thoroughly investigate the influence of the quantum barrier (QB) thickness on the performance of Micro-LEDs, and delve into the corresponding carrier transport behavior. The results demonstrate that the effect of QB thickness on the performance of Micro-LEDs is closely related to injection current density. Within the current density range of 0–30 A/cm\u00002\u0000, a thicker QB layer leads to a higher internal quantum efficiency (IQE) for Micro-LEDs. Conversely, when the current density is in the range of 30–100 A/cm\u00002\u0000, employing a thinner QB layer in the LED structure can yield higher IQE values. In addition, this work suggests that tunneling effects and Quantum Confined Stark Effect (QCSE) dominate at different current densities, resulting in an opposite dependency of IQE on QB thickness. Furthermore, our findings indicate that adjusting QB thickness can significantly affect both the peak external quantum efficiency (EQE) and peak current density of Micro-LEDs.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"17 1","pages":"1-7"},"PeriodicalIF":2.1,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10767358","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859261","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

High Power 780 nm Broad-Area DFB Laser With Narrow Spectral Width 高功率780nm窄谱宽广域DFB激光器

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-11-27 DOI: 10.1109/JPHOT.2024.3507802

Lihong Zhu;Wuling Liu;Jiahan Qin;Ye Shao;Shaoyang Tan;Jun Wang

{"title":"High Power 780 nm Broad-Area DFB Laser With Narrow Spectral Width","authors":"Lihong Zhu;Wuling Liu;Jiahan Qin;Ye Shao;Shaoyang Tan;Jun Wang","doi":"10.1109/JPHOT.2024.3507802","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3507802","url":null,"abstract":"The 7xx nm laser diode is the core pump source for Diode Pumped Alkali Vapor Laser (DPAL). For these applications, high power and narrow spectral width are essential. Traditional Fabry-Pérot (FP) diode lasers can provide high continuous output power, but their spectral width is too broad for many applications. By burying a Bragg grating within the semiconductor, a narrow and temperature-stable spectrum can be achieved. In this paper, we investigate the factors limiting the power enhancement of distributed feedback (DFB) lasers and characterize the grown gratings using transmission electron microscopy. We discuss the effects of grating coupling strength, wavelength detuning, and oxygen contamination in the grating region on performance. Under optimized growth conditions, a high-performance 780 nm DFB laser based on InGaAsP/InGaP gratings has been developed, achieving a continuous output power exceeding 10 W, which is the highest power for a 780 nm DFB laser to date. The spectral linewidth (FWHM) is less than 0.5 nm, and the device maintains locking across the entire operating current and a wide temperature range.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"17 1","pages":"1-6"},"PeriodicalIF":2.1,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10769983","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859255","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

Practical and Accurate Evaluation of Numerical Aperture and Beam Quality Factor in Photonic Crystal Fibers by Mechanical Learning 用机械学习方法实用准确地评价光子晶体光纤的数值孔径和光束质量因子

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-11-27 DOI: 10.1109/JPHOT.2024.3506622

Mengda Wei;Meisong Liao;Liang Chen;Yinpeng Liu;Wen Hu;Lidong Wang;Dongyu He;Tianxing Wang;Shizi Yu;Weiqing Gao

{"title":"Practical and Accurate Evaluation of Numerical Aperture and Beam Quality Factor in Photonic Crystal Fibers by Mechanical Learning","authors":"Mengda Wei;Meisong Liao;Liang Chen;Yinpeng Liu;Wen Hu;Lidong Wang;Dongyu He;Tianxing Wang;Shizi Yu;Weiqing Gao","doi":"10.1109/JPHOT.2024.3506622","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3506622","url":null,"abstract":"This paper presents a convolutional neural network (CNN) model, enhanced with the convolutional block attention module (CBAM), designed to accurately predict the beam quality factor M\u00002\u0000, and numerical aperture (NA) of photonic crystal fibers. The integration of CBAM significantly improves the model's feature extraction capability by enabling it to focus on key features and filter out irrelevant information. Simulation results demonstrate that the model achieves a mean relative error of only 0.381% for M\u00002\u0000 and 2.293% for NA, outperforming convolutional models without attention mechanisms. With a prediction time of approximately 7 ms, the model allows for rapid and efficient predictions of M\u00002\u0000 and NA. Moreover, when the noise factor remains below 0.32, the model's prediction error shows minimal fluctuation, highlighting its robustness. Comparative experimental analysis further validates the model's effectiveness. This approach offers a reliable and efficient solution for fast, accurate measurement of M² and NA, with significant implications for the prediction and analysis of beam performance in various applications.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"17 1","pages":"1-8"},"PeriodicalIF":2.1,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10767412","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859257","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

Computational Ghost Imaging With Bessel Beam for Axial Objects 轴向物体贝塞尔光束计算鬼影成像

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-11-25 DOI: 10.1109/JPHOT.2024.3505913

Jingjing Wu;Zixuan Yang

引用次数: 0

Ultra-Compact 1 × 4 Optical Power Splitter Based on Variable-Length Segment Optimized Inverse Design 基于变长段优化反设计的超紧凑1 × 4光分路器

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-11-25 DOI: 10.1109/JPHOT.2024.3505893

Yongchen Wang;Hangming Fan;Zhe Yuan;Junlin Pan;Longquan Dai;Qi Yang;Mengfan Cheng;Ming Tang;Deming Liu;Lei Deng

{"title":"Ultra-Compact 1 × 4 Optical Power Splitter Based on Variable-Length Segment Optimized Inverse Design","authors":"Yongchen Wang;Hangming Fan;Zhe Yuan;Junlin Pan;Longquan Dai;Qi Yang;Mengfan Cheng;Ming Tang;Deming Liu;Lei Deng","doi":"10.1109/JPHOT.2024.3505893","DOIUrl":"https://doi.org/10.1109/JPHOT.2024.3505893","url":null,"abstract":"Fixed-length segment (FLS) optimization method offers a way to realize the high-efficiency analog inverse design of nanophotonic devices. However, due to the limitation of the variable dimensions and restricted search space, this method can hard to simultaneously achieve large bandwidth, compact size, and efficient performance when dealing with high-dimension design. Here, we propose a highly efficient variable-length segment (VLS) based inverse design method, aiming to solve complex analog inverse design and fully demonstrate the targeted performance. It divides the optimized region into several tapered segments of unequal length and inserts a subwavelength transition waveguide between each tapered segment, which can expand the search space of the algorithm, thus making it easier to obtain a better locally optimal solution. As typical complex proof-of-concept examples, a 1 × 4 power splitter on a silicon-on-insulator (SOI) platform is chosen to demonstrate the validity of our design paradigm. The simulation results show that, compared with the conventional FLS, VLS has about 4–5 times higher efficiency and obtains better optimization performance. In our experiment, the fabricated device has a compact footprint of 9.8 μm × 4.9 μm and is complementary metal oxide semiconductor (CMOS) compatible. The measured insertion loss and the uniformity are less than 0.58 dB and 0.8 dB, respectively. In addition, the tolerances to fabrication errors are also investigated. Our work may find important applications in the advanced design of future nanoscale high-quality optical devices.","PeriodicalId":13204,"journal":{"name":"IEEE Photonics Journal","volume":"16 6","pages":"1-8"},"PeriodicalIF":2.1,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10767169","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142777804","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

Flat Supercontinuum Generation From a Phosphorus-Doped Fiber 由掺磷光纤产生平面超连续谱

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-11-21 DOI: 10.1109/JPHOT.2024.3504277

Kailong Li;Rui Song;Li Jiang;Zhiyong Pan;Zhiping Yan;Jing Hou

引用次数: 0

A Recording Structure for Extending the Detection Angle in Off-Axis Digital Holography 一种扩展离轴数字全息检测角度的记录结构

IF 2.1 4区工程技术

IEEE Photonics Journal Pub Date : 2024-11-20 DOI: 10.1109/JPHOT.2024.3502671

Yuanyuan Liu;Feiyan Hu;Qingwen Liu

引用次数: 0