IEEE Photonics Technology Letters最新文献

CNR Improvement Method for 380-km Ultra-Long-Distance A-RoF Transmission Using FM Conversion 利用调频变换提高380公里超远距A-RoF传输CNR方法

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-07-03 DOI: 10.1109/LPT.2025.3585642

Ryo Miyatake;Toshiaki Shitaba;Akihiro Tanabe;Youichi Fukada;Kaito Okada;Masayoshi Sekiguchi;Tomoaki Yoshida

引用次数: 0

Microwave Frequency Divider With Tunable Division Factors Based on an Optoelectronic Oscillator 基于光电振荡器的可调分频器

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-07-03 DOI: 10.1109/LPT.2025.3585525

Liangzun Tang;Shifeng Liu;Li Yang;Zhenzhou Tang;Simin Li;Shilong Pan

{"title":"Microwave Frequency Divider With Tunable Division Factors Based on an Optoelectronic Oscillator","authors":"Liangzun Tang;Shifeng Liu;Li Yang;Zhenzhou Tang;Simin Li;Shilong Pan","doi":"10.1109/LPT.2025.3585525","DOIUrl":"https://doi.org/10.1109/LPT.2025.3585525","url":null,"abstract":"A wideband microwave regenerative frequency divider with tunable division factors is proposed and experimentally demonstrated based on harmonic mixing in an optoelectronic oscillator. In the optoelectronic oscillation cavity, a phase modulator is cascaded with an optical filter to achieve equivalent intensity modulation by preserving the single sideband. Harmonic mixing procedure occurs between the <inline-formula> <tex-math>$+ 1^{mathrm {st}}$ </tex-math></inline-formula>-order sideband of the input signal and the higher-order sideband of the oscillation signal within the following photodetector. When the intermediate frequency generated by the harmonic mixing procedure matches the oscillation frequency, and the loop phase and gain conditions are satisfied, microwave regenerative frequency division can be achieved. The frequency division factor is determined by the order of the optical sideband of the oscillation signal during the harmonic mixing and can be adjusted using a two-tap microwave filter constructed with a phase shifter on each arm. Experimental results show that a microwave regenerative frequency divider with an operating frequency range of 22 to 30 GHz and division factors varying from 2 to 8 was successfully realized.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 19","pages":"1133-1136"},"PeriodicalIF":2.3,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597766","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

Influence of the Annealing Temperature on ASE Properties and Carrier Dynamics of Perovskite Films 退火温度对钙钛矿薄膜ASE性能和载流子动力学的影响

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-07-02 DOI: 10.1109/LPT.2025.3585140

Wei Wang;Yuan Zhang;Mingze Xia;Meng Zhang;Zhaohong Liu;Li Song;Yang Zhao;Yuanqin Xia

{"title":"Influence of the Annealing Temperature on ASE Properties and Carrier Dynamics of Perovskite Films","authors":"Wei Wang;Yuan Zhang;Mingze Xia;Meng Zhang;Zhaohong Liu;Li Song;Yang Zhao;Yuanqin Xia","doi":"10.1109/LPT.2025.3585140","DOIUrl":"https://doi.org/10.1109/LPT.2025.3585140","url":null,"abstract":"Quasi-two-dimensional perovskites demonstrate significant potential as laser gain media due to their unique excitonic properties in multilayer configurations. Femtosecond laser spectroscopy techniques, known for their exceptional temporal resolution, allow for the observation of ultrafast dynamic processes at the molecular and atomic levels, surpassing the capabilities of conventional spectroscopic methods. This study employs various spectroscopic methodologies, including stripe light excitation (SLE) and femtosecond time-resolved transient absorption (TA), to investigate the amplified spontaneous emission (ASE) characteristics of Dion-Jacobson type quasi-2D perovskite (PDA)Cs<inline-formula> <tex-math>${}_{text {n}-1}$ </tex-math></inline-formula>PbnBr<inline-formula> <tex-math>${}_{3text {n}+1}$ </tex-math></inline-formula>, along with its correlation to carrier dynamics. The experimental findings indicate that higher annealing temperatures can reduce trap-assisted recombination and Auger recombination, thereby enhancing the efficiency of radiative recombination. However, it is observed that excessively high annealing temperatures may lead to a rapid decline in the performance of the quasi-2D perovskite. The research suggests that optimizing the annealing temperature can improve the optical gain characteristics of perovskite films, thereby supporting their application in the field of laser gain media.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 20","pages":"1169-1172"},"PeriodicalIF":2.3,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144640963","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

Efficient Symmetry-Tunable Triangular-Shaped Waveforms Generation via Time-Domain Synthesis 基于时域合成的高效对称可调谐三角形波形生成

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-07-02 DOI: 10.1109/LPT.2025.3585247

Xiaohong Lan;Yang Jiang;Jing Xu;Jinjian Feng;Yunkun Luo;Qianyou Long

引用次数: 0

Stabilized High-Order Mode Brillouin Random Fiber Laser Using a Self-Matched Dynamic Fiber Grating 利用自匹配动态光纤光栅稳定高阶模布里渊随机光纤激光器

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-07-02 DOI: 10.1109/LPT.2025.3584893

Weiyu Pan;Liang Zhang;Yichun Li;Yu Chen;Caojun Zhang;Jianxiang Wen;Wei Chen;Mengshi Zhu;Heming Wei;Fufei Pang;Tingyun Wang

引用次数: 0

Microsphere-Integrated Photonic Crystal Sensors for Spatially-Resolved Refractive Index Measurement 空间分辨折射率测量微球集成光子晶体传感器

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-07-02 DOI: 10.1109/LPT.2025.3585430

Jingyu Yu;Jiaming Qian;Jun Liu;Songlin Yang;Sorin Melinte;Kemao Qian;Chao Zuo;Ran Ye

引用次数: 0

Bracket-Diaphragm Coupled Fabry-Perot Acoustic Sensor for Partial Discharge Detection 用于局部放电检测的支架-膜片耦合法布里-珀罗声学传感器

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-07-01 DOI: 10.1109/LPT.2025.3585059

Yan Wei;Jingya Zhang;Heming Wei;Caixia Jia;Fufei Pang;Shijie Zheng;Carlos Marques

{"title":"Bracket-Diaphragm Coupled Fabry-Perot Acoustic Sensor for Partial Discharge Detection","authors":"Yan Wei;Jingya Zhang;Heming Wei;Caixia Jia;Fufei Pang;Shijie Zheng;Carlos Marques","doi":"10.1109/LPT.2025.3585059","DOIUrl":"https://doi.org/10.1109/LPT.2025.3585059","url":null,"abstract":"We demonstrate a bracket-diaphragm-based Fabry-Perot (FP) cavity fabricated by two-photon 3D printing technique as a highly-sensitive acoustic sensor for the detection of partial discharge. The diaphragm consists of two parts, one is the low-frequency dominant bracket structure, while the other features a high-frequency dominant diaphragm. To achieve high acoustic sensing performance, the whole structure is optimized for mechanical mode-coupling resonance, which can significantly enhance the response to acoustic waves. The sensing performance of the device for acoustic wave detection is investigated. Furthermore, the sensor is utilized for the detection of partial discharge. Results show that the device can detect the acoustic emission waves with frequencies up to 340 kHz and exhibits well-distance responsiveness. With a minimum detectable pressure (MDP) of <inline-formula> <tex-math>$3.81~mu $ </tex-math></inline-formula> <inline-formula> <tex-math>${mathrm {Pa/Hz}}^{mathbf {1/2}}$ </tex-math></inline-formula> at 150 kHz, the sensor shows desirable potential for applications in partial discharge detection of electrical equipment.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 19","pages":"1125-1128"},"PeriodicalIF":2.3,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597765","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

Demonstration of Optoelectronic THz Beam Tracking Using Real-Time Phase Optimization 基于实时相位优化的光电太赫兹波束跟踪演示

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-06-30 DOI: 10.1109/LPT.2025.3584618

Bo Li;Ming Che;Shenghong Ye;Yuya Mikami;Kazutoshi Kato

引用次数: 0

Efficient and Stable Electroluminescent Devices From Sn/ErYb Silicate Co-Doped in Silica Film 硅膜中Sn/ErYb硅酸盐共掺杂的高效稳定电致发光器件

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-06-30 DOI: 10.1109/LPT.2025.3584049

Jingjie Zhao;Lixiang Wang;Yangyi Zhang;Teng Sun;Jun Xu;Kunji Chen

引用次数: 0

Two-Way Fiber-Optic Time Synchronization System Based on Feedforward-Feedback Phase Compensation 基于前馈-反馈相位补偿的双向光纤时间同步系统