IEEE Photonics Technology Letters最新文献_第5页

Highly Sensitive Optoelectronic Oscillator-Based FBG Sensor via Coarse Sampling and Vernier Effect 通过粗采样和游标效应实现基于光电振荡器的高灵敏度 FBG 传感器

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2024-09-10 DOI: 10.1109/LPT.2024.3457492

Ruoqi Wang;Wenrui Wang;Jun Hu;Biying Zhou;Xueqian Bai;Lingyun Ye;Kaichen Song

引用次数: 0

Arbitrary Tunable Edge-Enhanced Imaging Based on Curvilinear Vortex Filter 基于曲线涡流滤波器的任意可调边缘增强成像技术

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2024-09-05 DOI: 10.1109/LPT.2024.3454648

Danping Lin;Shaohua Tao

引用次数: 0

A Knee-Flexion Angle Optical Fiber Sensor Based on Spherical Fused Triple-Clad Fiber 基于球形熔融三包层光纤的膝关节屈曲角度光纤传感器

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2024-09-04 DOI: 10.1109/LPT.2024.3454358

Xiaojun Zhu;Jiayi Qian;Wen Liu;Shuai Li;Yongjuan Ji;Juan Cao;Guoan Zhang;Yan Cai;Yongjie Yang

引用次数: 0

A Compact SSPPs Unit With Bandpass Feature and its Application in Bandpass Transmission Line 具有带通特性的紧凑型 SSPPs 装置及其在带通传输线中的应用

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2024-09-04 DOI: 10.1109/LPT.2024.3454265

Min Wang;Gao Wei;Tiancheng Qiu;Siyuan Lei;Kangkang Han

{"title":"A Compact SSPPs Unit With Bandpass Feature and its Application in Bandpass Transmission Line","authors":"Min Wang;Gao Wei;Tiancheng Qiu;Siyuan Lei;Kangkang Han","doi":"10.1109/LPT.2024.3454265","DOIUrl":"https://doi.org/10.1109/LPT.2024.3454265","url":null,"abstract":"In this letter, a novel spoof surface plasmon polaritons (SSPPs) bandpass filtering unit (BP-FU) is proposed. The equivalent circuit model of BP-FU is given and by establishing its ABCD-matrix, the pass band and forbidden band are analysed theoretically, which behaves the feature of bandpass. Meanwhile, the simulated dispersion curve of BP-FU shows bandpass feature. Subsequently, the proposed BP-FU is applied to design a bandpass filtering transmission line (TL). The TL obtains the bandpass filtering feature spontaneously due to the periodically arranged BP-FUs. The TL consisting of BP-FUs can be excited by the methods like exciting traditional unit and a transverse magnetic wave propagates along the TL. The field characteristic is as same as classical SSPPs TL. The measured results of the prototype of the TL shows a passband from 6.66 GHz to 10.06 GHz and ultrawide stopbands (\u0000<inline-formula> <tex-math>$vert S_{21}vert lt $ </tex-math></inline-formula>\u0000-22 dB) from nearly 0 GHz to 5.36 GHz and 10.89 GHz to 40 GHz. The measured results indicate good application prospect in single conductor multifunction circuit.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142173983","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

Miniaturized GaN-Based Optical Hydrophones for Underwater Low-Frequency Acoustic Detection 用于水下低频声探测的微型氮化镓基光学水听器

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2024-09-03 DOI: 10.1109/LPT.2024.3454151

Liushu Pan;Shengquan Li;Jian Chen;Mingcheng Luo;Long Zhang;Linbojie Huang;Kwai Hei Li;Xinke Tang

{"title":"Miniaturized GaN-Based Optical Hydrophones for Underwater Low-Frequency Acoustic Detection","authors":"Liushu Pan;Shengquan Li;Jian Chen;Mingcheng Luo;Long Zhang;Linbojie Huang;Kwai Hei Li;Xinke Tang","doi":"10.1109/LPT.2024.3454151","DOIUrl":"10.1109/LPT.2024.3454151","url":null,"abstract":"In this letter, the fabrication and characterization of a miniaturized optical hydrophone for detecting underwater acoustic signals is demonstrated. A light emitter and detector are fabricated on a GaN-based device at chip scale through the monolithic integration approach. By incorporating a deformable PDMS film embedded with TiO2 nanoparticles, the sound vibration can be effectively converted into photocurrent changes. The millimeter-sized hydrophone can detect hydro-acoustic signals ranging from 0.1 Hz to 250 Hz, with an optimum sensitivity of about \u0000<inline-formula> <tex-math>$2.3times 10 ^{-14}$ </tex-math></inline-formula>\u0000 A/\u0000<inline-formula> <tex-math>$mu $ </tex-math></inline-formula>\u0000Pa at around 48 Hz and a minimum detectable pressure of about 4 Pa. It is capable of distinguishing waves originating from two distinct acoustic sources with a frequency difference as low as 0.2 Hz. This cost-effective, chip-scale design with high stability holds great potential for a variety of applications that necessitate identifying low-frequency acoustic signals in underwater environments.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142200607","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

Dual-Band Polarization-Independent Terahertz Absorber Based on F-Shaped Multimode Structure 基于 F 型多模结构的双波段极化无关太赫兹吸收器

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2024-09-03 DOI: 10.1109/LPT.2024.3454175

Daotong Li;Dongyi Sui;Kai-Da Xu;Dongxu Wang;Ying Liu;Siyuan Luo;Naoki Shinohara

引用次数: 0

Characterizing Mode Propagation in PMMA POFs with Intensity Measurements and Phase Retrieval 利用强度测量和相位检索确定 PMMA POF 中的模式传播特性

IF 2.6 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2024-09-02 DOI: 10.1109/lpt.2024.3453112

Komal Ojha, J Ajith, Esther Lidiya, Kumar Appaiah

引用次数: 0

A Grouped-ANN Equalizer for the Rotated PS 64QAM OFDM in W-Band ROF System 用于 W 波段 ROF 系统中旋转 PS 64QAM OFDM 的分组 ANN 均衡器

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2024-08-30 DOI: 10.1109/LPT.2024.3449922

Jing He;Jing He

{"title":"A Grouped-ANN Equalizer for the Rotated PS 64QAM OFDM in W-Band ROF System","authors":"Jing He;Jing He","doi":"10.1109/LPT.2024.3449922","DOIUrl":"https://doi.org/10.1109/LPT.2024.3449922","url":null,"abstract":"In the letter, a grouped artificial neural network (G-ANN) based equalizer is proposed and experimentally demonstrated for the rotated and probabilistically shaped 64 quadrature amplitude modulation (RPS 64QAM) orthogonal frequency division multiplexing (OFDM) in W-band radio-over-fiber (ROF) system. PS OFDM can achieve capacity improvement and flexible rate adaptability. Then, the rotated QAM scheme is applied after PS to increase the noise tolerance and resist selective frequency fading in ROF system. In addition, a deep learning equalizer using G-ANN is proposed for RPS 64QAM OFDM. The numerical analysis indicates that the proposed G-ANN equalizer has a better performance and lower training overhead compared with the ANN equalizer. The experimental results show that, after 20 km standard single mode fiber (SSMF) and 1 m wireless transmission, compared to RPS without and with ANN equalizer, the sensitivity improvement of RPS OFDM with the proposed G-ANN equalizer can achieve 1.5dB and 0.6dB at BER of \u0000<inline-formula> <tex-math>$10^{-5}$ </tex-math></inline-formula>\u0000. Meanwhile, the receiver sensitivity of RPS can be improved 1.6 dB compared with PS at normalized generalized mutual information (NGMI) of 0.83.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142143597","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

Programmable Optical Filter Combining a FIR Structure and Intelligent Algorithms 结合 FIR 结构和智能算法的可编程光学滤波器

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2024-08-29 DOI: 10.1109/LPT.2024.3451456

Li Liu;Lijun Zhang;Chen Chen;Xiang Li;Ying Qiu;Ping Zhao;Cong Hu;Jiazhu Duan

引用次数: 0

Ultrastable 10 GHz Mode-Locked Laser on Semi-Insulating Substrate Through RF Injection Locking 通过射频注入锁定实现半绝缘基底上的超稳定 10 GHz 模式锁定激光器

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2024-08-29 DOI: 10.1109/LPT.2024.3451690

Mohanad Al-Rubaiee;Bocheng Yuan;Yizhe Fan;Simeng Zhu;John Marsh;Lianping Hou

{"title":"Ultrastable 10 GHz Mode-Locked Laser on Semi-Insulating Substrate Through RF Injection Locking","authors":"Mohanad Al-Rubaiee;Bocheng Yuan;Yizhe Fan;Simeng Zhu;John Marsh;Lianping Hou","doi":"10.1109/LPT.2024.3451690","DOIUrl":"https://doi.org/10.1109/LPT.2024.3451690","url":null,"abstract":"We have developed a passive semiconductor mode-locked laser on a semi-insulating (S.I.) substrate, which significantly reduces parasitic capacitance. This allows for efficient direct modulation and improved performance, making it ideal for RF fundamental and subharmonic injection locking using a Ground-Signal-Ground probe with relatively lower RF power to reduce timing jitter. Hybrid mode-locking was observed at RF powers as low as –20 dBm for the fundamental frequency, with higher power required for subharmonic frequencies. Experimental results demonstrate significant performance improvements, including linewidth reduction from 40 kHz (free-running laser) to sub-hertz levels after RF fundamental injection locking, phase noise reduction by over 40 dBc/Hz at a 10 kHz offset, and a decrease in timing jitter from 7.2 ps to approximately 80 fs with an injected fundamental RF power of –5 dBm. Subharmonic injection locking offers simplified modulation requirements and circuitry, although it requires a higher injection RF power. These significant improvements highlight the potential of our approach for advanced optical communication and optical clock systems.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142169686","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