IEEE Journal of Quantum Electronics最新文献

A Nanoplasmonic Directional Coupler Utilizing a Backed Conductor on Dielectric Substrate With Finite Width 利用有限宽度介质基底上的背衬导体的纳米光导定向耦合器

IF 2.2 3区工程技术

IEEE Journal of Quantum Electronics Pub Date : 2024-10-23 DOI: 10.1109/JQE.2024.3485503

Kola Thirupathaiah;Montasir Qasymeh

{"title":"A Nanoplasmonic Directional Coupler Utilizing a Backed Conductor on Dielectric Substrate With Finite Width","authors":"Kola Thirupathaiah;Montasir Qasymeh","doi":"10.1109/JQE.2024.3485503","DOIUrl":"https://doi.org/10.1109/JQE.2024.3485503","url":null,"abstract":"A new nanoplasmonic directional coupler (DC) is proposed, utilizing a conductor-backed coplanar waveguide (CPW) with a finite width. Our design approach includes first establishing a theoretical transmission-line model for the coupler, and then utilizing the characteristic parameters of related coupled CPW structures for a comprehensive analysis. The provided analysis is conducted through full-wave analysis using a conformal mapping technique (CMT), implemented in CST Microwave Studio Suite CAD simulation software. This article primarily focuses on designing and analyzing the directional coupler using a backed conductor on the dielectric substrate with finite width, applying the transmission line (TL) theory method to achieve a coupling coefficient (\u0000<inline-formula> <tex-math>$C_{C}$ </tex-math></inline-formula>\u0000) of 3-dB. The proposed plasmonic coupler operates efficiently at optical frequencies in both the O- and L-bands. Simulations demonstrate that the coupling coefficient of the directional coupler is effectively modulated by varying the width of the backed conductor (\u0000<inline-formula> <tex-math>$w_{c}$ </tex-math></inline-formula>\u0000). Consequently, the proposed design surpasses the performance of traditional narrow-bandwidth couplers, offering significant benefits for applications in subwavelength wireless networks and high-density nanoscale photonic integrated circuits (PICs).","PeriodicalId":13200,"journal":{"name":"IEEE Journal of Quantum Electronics","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142555128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Intensity and Degree of Coherence of Vortex Beams in Atmospheric Turbulence 大气湍流中涡流束的强度和连贯度

IF 2.2 3区工程技术

IEEE Journal of Quantum Electronics Pub Date : 2024-10-21 DOI: 10.1109/JQE.2024.3484248

Muhsin Caner Gökçe;Yahya Baykal;Hamza Gerçekcioğlu;Yalçın Ata

引用次数: 0

Numerical Modeling for 250 nm DUV LEDs With Discrete p-type Functional Layers to Manage Both Carrier and Photon Transport 利用离散 p 型功能层管理载流子和光子传输的 250 nm DUV LED 数值建模

IF 2.2 3区工程技术

IEEE Journal of Quantum Electronics Pub Date : 2024-10-10 DOI: 10.1109/JQE.2024.3478089

Wenjie Li;Zhaoqiang Liu;Chunshuang Chu;Kangkai Tian;Haoyan Liu;Yonghui Zhang;Changsheng Xia;Xiaowei Sun;Zi-Hui Zhang

{"title":"Numerical Modeling for 250 nm DUV LEDs With Discrete p-type Functional Layers to Manage Both Carrier and Photon Transport","authors":"Wenjie Li;Zhaoqiang Liu;Chunshuang Chu;Kangkai Tian;Haoyan Liu;Yonghui Zhang;Changsheng Xia;Xiaowei Sun;Zi-Hui Zhang","doi":"10.1109/JQE.2024.3478089","DOIUrl":"https://doi.org/10.1109/JQE.2024.3478089","url":null,"abstract":"Deep-ultraviolet light-emitting diodes (DUV LEDs) are encountering low external quantum efficiency (EQE) and light output power (LOP) due to the strong optical absorption to DUV light and the poor carrier injection efficiency. To solve these issues, we design and optimize a 250 nm DUV LED structure with thin quantum wells and discrete p-type functional layers. The discrete p-type functional layers consist of a high Al composition-gradient layer (layer I) and a low Al composition-gradient layer (layer II). Calculated results indicate that the use of thin quantum wells can rearrange the valence subband distributions to increase the transverse-electric (TE) polarized emission, thereby enhancing light extraction efficiency (LEE). Additionally, the LEE can also be increased by optimizing the thickness of the discrete p-type functional layers, i.e., modulating the optical absorption effect and the optical cavity effect. Meanwhile, we also investigate the impact of different negative polarization bulk charge densities on the electron and hole injections by changing the thickness of layer I and layer II, which can obtain the optimized internal quantum efficiency (IQE) for the 250 nm DUV LED. Therefore, when compared with conventional DUV LEDs, the proposed LED architectures improve the EQE and optical power if the discrete p-type functional layers are properly designed.","PeriodicalId":13200,"journal":{"name":"IEEE Journal of Quantum Electronics","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

C-Band Directly Modulated Lasers With Tunable Photon–Photon Resonance in InP Membrane 具有可调谐 InP 膜光子-光子共振的 C 波段直接调制激光器

IF 2.2 3区工程技术

IEEE Journal of Quantum Electronics Pub Date : 2024-10-07 DOI: 10.1109/JQE.2024.3475745

Aleksandr Zozulia;Richard Schatz;Samir Rihani;Graham Berry;Kevin Williams;Yuqing Jiao

{"title":"C-Band Directly Modulated Lasers With Tunable Photon–Photon Resonance in InP Membrane","authors":"Aleksandr Zozulia;Richard Schatz;Samir Rihani;Graham Berry;Kevin Williams;Yuqing Jiao","doi":"10.1109/JQE.2024.3475745","DOIUrl":"https://doi.org/10.1109/JQE.2024.3475745","url":null,"abstract":"InP membrane directly modulated semiconductor lasers (DMLs) with photon-photon resonance (PPR) have a lot of potential to be used in short-range telecommunication systems due to their small footprint, high energy efficiency, and high modulation bandwidth. However, the stability of the S21 response in PPR-based devices is sensitive to precise phase-matching between the lasing mode and PPR mode. We designed, fabricated, measured, and analyzed a C-band DML with active phase-tuning achieved by a thermal phase shifter on top of a long passive waveguide. The phase shifter enables tuning of the PPR frequency in the range of 5 GHz resulting in the PPR peak power enhancement of 16 dB. We study the small-signal responses at different combinations of bias current and phase shifter current and show, that in some cases the phase shifter enables a bandwidth that cannot be achieved by sweeping the bias current. The laser dynamic behavior is simulated and the influence of the most important design and processing parameters on bandwidth is studied in detail.","PeriodicalId":13200,"journal":{"name":"IEEE Journal of Quantum Electronics","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10706920","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142450918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 Precision and Fast Distributed Temperature Data Demodulation Algorithm of Optical Frequency Domain Reflectometer Based on LSTM-CNN 基于 LSTM-CNN 的高精度、快速分布式光学频域反射仪温度数据解调算法

IF 2.2 3区工程技术

IEEE Journal of Quantum Electronics Pub Date : 2024-10-02 DOI: 10.1109/JQE.2024.3471988

Lei Huang;Min Liu;Yingqi Cui;Zhaohao Zhu;Ping Shum

{"title":"High Precision and Fast Distributed Temperature Data Demodulation Algorithm of Optical Frequency Domain Reflectometer Based on LSTM-CNN","authors":"Lei Huang;Min Liu;Yingqi Cui;Zhaohao Zhu;Ping Shum","doi":"10.1109/JQE.2024.3471988","DOIUrl":"https://doi.org/10.1109/JQE.2024.3471988","url":null,"abstract":"A demodulation algorithm based on the LSTM-CNN is proposed to simultaneously achieve the demodulation of temperature data from distributed optical frequency domain reflectometry (OFDR). As for the local measurement range along the distributed fiber, the LSTM-CNN can achieve an average mean absolutely error (MAE) of only 0.0393 and the average demodulation time is only 0.1507 seconds. The comparison with the cross-correlation algorithm, Multi-Layer Perceptron (MLP), Extreme Learning Machine (ELM), Long Short-Term Memory (LSTM), and Convolutional Neural Network (CNN) demonstrates that the MAE is reduced by 85.98%, 77.23%, 88.25%, 80.95%, and 91.82%, and the average time is faster 38.19 times, 8.71 times, 3.28 times, 1.37 times, and 2.45 times, respectively. As for the full measurement range of the distributed fiber, the temperature distribution curve demodulated by LSTM-CNN is found to be consistent with the actual temperature distribution curve and the average demodulation time is 0.371 seconds, providing a new method for the temperature data demodulation in the distributed OFDR sensing system.","PeriodicalId":13200,"journal":{"name":"IEEE Journal of Quantum Electronics","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142450920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pseudo-Random Generator Based on a Photonic Neuromorphic Physical Unclonable Function 基于光子神经形态物理不可克隆函数的伪随机发生器

IF 2.2 3区工程技术

IEEE Journal of Quantum Electronics Pub Date : 2024-10-01 DOI: 10.1109/JQE.2024.3471951

Dimitris Dermanis;Panagiotis Rizomiliotis;Adonis Bogris;Charis Mesaritakis

引用次数: 0

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IF 2.2 3区工程技术

IEEE Journal of Quantum Electronics Pub Date : 2024-09-27 DOI: 10.1109/JQE.2024.3463151

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IEEE Journal of Quantum Electronics information for authors IEEE 期刊《量子电子学》为作者提供的信息

IF 2.2 3区工程技术

IEEE Journal of Quantum Electronics Pub Date : 2024-09-27 DOI: 10.1109/JQE.2024.3463153

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IEEE Journal of Quantum Electronics publication information IEEE 量子电子学报》出版信息

IF 2.2 3区工程技术

IEEE Journal of Quantum Electronics Pub Date : 2024-09-27 DOI: 10.1109/JQE.2024.3463157

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TechRxiv: Share Your Preprint Research with the World! TechRxiv：与世界分享您的预印本研究成果！

IF 2.2 3区工程技术

IEEE Journal of Quantum Electronics Pub Date : 2024-09-27 DOI: 10.1109/JQE.2024.3465253

引用次数: 0