Journal of Lightwave Technology最新文献_第5页

Novel Fiber-Optic Chemical Flow Sensing Technology Based on PHMB Sorption Characteristics for CO2 Under Dynamic Fluid Conditions 动态流体条件下基于PHMB吸附CO2特性的新型光纤化学流量传感技术

IF 5.2 1区工程技术

Journal of Lightwave Technology Pub Date : 2026-09-01 Epub Date: 2026-07-01 DOI: 10.1109/JLT.2026.3708866

Jia-Fu Xu;Bo Han;Zhi-yuan Liu;Ya-nan Zhang;Yong Zhao

引用次数: 0

Demonstration of a D-Band Photonics-Aided Terahertz Wireless Communication System Employing I/Q Mixing and ISFA-ERE Algorithm 采用I/Q混合和ISFA-ERE算法的d波段光子辅助太赫兹无线通信系统的演示

IF 5.2 1区工程技术

Journal of Lightwave Technology Pub Date : 2026-09-01 Epub Date: 2026-07-07 DOI: 10.1109/JLT.2026.3710699

Jiali Chen;Jianjun Yu;Ye Zhou;Xin Lu;Hansong Ma;Qinyi Zhang;Sicong Xu;Yifan Chen;Hanyu Zhang;Zhongxiao Pei;Zhihang Ou;Yubin Zhang;Xin Shi;Kaihui Wang;Wen Zhou

{"title":"Demonstration of a D-Band Photonics-Aided Terahertz Wireless Communication System Employing I/Q Mixing and ISFA-ERE Algorithm","authors":"Jiali Chen;Jianjun Yu;Ye Zhou;Xin Lu;Hansong Ma;Qinyi Zhang;Sicong Xu;Yifan Chen;Hanyu Zhang;Zhongxiao Pei;Zhihang Ou;Yubin Zhang;Xin Shi;Kaihui Wang;Wen Zhou","doi":"10.1109/JLT.2026.3710699","DOIUrl":"https://doi.org/10.1109/JLT.2026.3710699","url":null,"abstract":"To address the ever-increasing demand for data throughput in evolving wireless communication systems towards 6G, the D-band (110-170 GHz), with its abundant spectrum resources, emerges as a key carrier for ultra-high-speed transmission. This paper experimentally validates a long-distance, high-capacity photonics-assisted terahertz (THz) wireless communication system. To overcome inherent challenges in the THz band, such as high path loss, the receiver innovatively employs an optoelectronic hybrid I/Q mixer, providing natural diversity reception branches. At the signal processing level, the system jointly utilizes diversity reception technology based on Maximum Ratio Combining (MRC) and a novel Interleaved Symbol-wise Frequency Averaging Edge Re-Equalization (ISFA-ERE) algorithm designed to mitigate the edge distortion caused by the conventional ISFA technique. This hardware-algorithm co-design significantly enhances the robustness of channel estimation and equalization. Experimental results demonstrate the successful wireless transmission of Quadrature Phase Shift Keying (QPSK) signals with a carrier frequency of 128 GHz, a transmission distance of 4.6 km, and a bandwidth of 32 GBaud. Under the 20% soft-decision forward error correction (SD-FEC) threshold, the system achieves a maximum data rate of 60 Gbps, marking a significant advancement towards practical kilometer-level, tens-of-Gbps THz communication.","PeriodicalId":16144,"journal":{"name":"Journal of Lightwave Technology","volume":"44 17","pages":"7489-7499"},"PeriodicalIF":5.2,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148877945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Monolithically Integrated Reconfigurable Silicon Photonic Transmitter in 45 nm CMOS SOI 45纳米CMOS SOI单片集成可重构硅光子发射机

IF 5.2 1区工程技术

Journal of Lightwave Technology Pub Date : 2026-09-01 Epub Date: 2026-07-09 DOI: 10.1109/JLT.2026.3711783

Youngin Kim;Laurenz Kulmer;Maiko Fukui;Chenrui Xu;Samuel Hess;Jong-Bum You;Juerg Leuthold;Hua Wang

{"title":"Monolithically Integrated Reconfigurable Silicon Photonic Transmitter in 45 nm CMOS SOI","authors":"Youngin Kim;Laurenz Kulmer;Maiko Fukui;Chenrui Xu;Samuel Hess;Jong-Bum You;Juerg Leuthold;Hua Wang","doi":"10.1109/JLT.2026.3711783","DOIUrl":"https://doi.org/10.1109/JLT.2026.3711783","url":null,"abstract":"This paper presents a monolithically integrated electro-optic (EO) modulator that provides modulation format reconfigurability for optical communication applications. The proposed reconfigurable EO modulator consists of two parallel sub-modulators arranged in a nested interferometer configuration. By controlling the power splitting/combining ratios and phases of the signals in the modulators, the proposed EO modulator can be reconfigured on demand to generate PAM2/PAM4 and BPSK/QPSK signals in a single monolithic chip. Moreover, to reduce the π-phase-shift voltage, the sub-modulators are realized as ring-assisted Mach-Zehnder modulators. This relaxes the output voltage swing requirements of co-integrated CMOS drivers, which mitigates the bandwidth-swing trade-off, thereby achieving higher modulation speed. Thanks to the co-design and integration, the monolithically integrated CMOS driver supports energy efficiency up to 3.25 pJ/bit. An active area of the chip, fabricated in a GlobalFoundries 45SPCLO, is only 2.48 mm2, including the proposed reconfigurable EO modulator and two monolithically integrated CMOS drivers. The proposed chip achieves a measured data rate of 49, 50, 40, 20 Gbps, while consuming a power of 159, 318, 192, 417 mW of driver power for PAM2, PAM4, BPSK, QPSK modulation, respectively.","PeriodicalId":16144,"journal":{"name":"Journal of Lightwave Technology","volume":"44 17","pages":"7428-7440"},"PeriodicalIF":5.2,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148877900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Novel Single Clad Ho-Doped Fiber With High Slope Efficiency and Low Ion Pairing 新型高斜率效率低离子对单包层掺ho光纤

IF 5.2 1区工程技术

Journal of Lightwave Technology Pub Date : 2026-09-01 Epub Date: 2026-07-08 DOI: 10.1109/JLT.2026.3711453

Robert E. Tench;Wiktor Walasik;Alexandre Amavigan;Jean-Marc Delavaux;Colin C. Baker;Daniel Rhonehouse

引用次数: 0

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IF 5.2 1区工程技术

Journal of Lightwave Technology Pub Date : 2026-09-01 Epub Date: 2026-10-09 DOI: 10.1109/JLT.2026.3741262

引用次数: 0

Joint Modulation and Coding Recognition for Underwater Wireless Optical Communication in Turbid and Bubble-Disturbed Channels 浑浊和气泡干扰信道下水下无线光通信联合调制与编码识别

IF 5.2 1区工程技术

Journal of Lightwave Technology Pub Date : 2026-09-01 Epub Date: 2026-06-24 DOI: 10.1109/JLT.2026.3706971

Meiwei Kong;Feiying Zhang;Hui Zhou;Han Yu;Qunhui Yang;Chen Chen;Harald Haas

{"title":"Joint Modulation and Coding Recognition for Underwater Wireless Optical Communication in Turbid and Bubble-Disturbed Channels","authors":"Meiwei Kong;Feiying Zhang;Hui Zhou;Han Yu;Qunhui Yang;Chen Chen;Harald Haas","doi":"10.1109/JLT.2026.3706971","DOIUrl":"https://doi.org/10.1109/JLT.2026.3706971","url":null,"abstract":"Joint modulation and coding recognition (JMCR) can provide the receiver with a complete perception of the transmission format, thereby directly supporting adaptive demodulation and decoding. However, under the combined influence of turbidity and bubble disturbance, the received signals will suffer from amplitude attenuation, signal distortion, and time-varying envelope fluctuation, making the reliable recognition of modulation and coding schemes (MCSs) extremely challenging. To address this issue, we propose a JMCR method based on a parallel heterogeneous multi-task learning framework for turbid and dynamic underwater environments. This framework is composed of an in-phase and quadrature sequence representation module, a parallel convolutional neural network-residual network feature extraction module, a bidirectional gated recurrent unit-based temporal dependency modeling module, and a correlation-aware multi-task recognition module, which are used to extract complementary features, capture temporal dependencies, and improve joint recognition consistency. For 24 MCSs composed of 4/16/64 quadrature amplitude modulation and 4/8/16 phase shift keying modulation formats, along with low-density parity-check codes (with code rates of 0.50 and 0.75) and Polar codes (with code rates of 0.25 and 0.50) coding schemes, we conduct feasibility verification of the proposed method in composite underwater environments with turbidity and bubble disturbance in the laboratory. The results show that the average JMCR accuracy of the proposed method reaches 92.7% under 16 underwater conditions, which includes the 0.6% performance improvement brought about by the correlation-aware supervision. This indicates that the proposed method has great application potential in composite underwater environments with turbidity and bubble disturbance.","PeriodicalId":16144,"journal":{"name":"Journal of Lightwave Technology","volume":"44 17","pages":"7543-7553"},"PeriodicalIF":5.2,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148877889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Phase-Modulated Dual-Frequency Fiber Lasers: A Power Scalable and Temporally Stable Architecture for High-Power Systems With Enhanced Nonlinearity Suppression 相位调制双频光纤激光器：用于增强非线性抑制的大功率系统的功率可扩展和时间稳定架构

IF 5.2 1区工程技术

Journal of Lightwave Technology Pub Date : 2026-09-01 Epub Date: 2026-07-10 DOI: 10.1109/JLT.2026.3712046

Jiaxin Song;Hanshuo Wu;Wei Liu;Pengfei Ma

{"title":"Phase-Modulated Dual-Frequency Fiber Lasers: A Power Scalable and Temporally Stable Architecture for High-Power Systems With Enhanced Nonlinearity Suppression","authors":"Jiaxin Song;Hanshuo Wu;Wei Liu;Pengfei Ma","doi":"10.1109/JLT.2026.3712046","DOIUrl":"https://doi.org/10.1109/JLT.2026.3712046","url":null,"abstract":"Temporally stable fiber lasers are essential for high-power applications due to their high nonlinear thresholds, with power scalability being critical for practical use. This work proposes and demonstrates a phase-modulated dual-frequency fiber laser (PM DFFL) architecture by utilizing two phase-modulated single-frequency lasers (PM SFFLs) separated by a controlled frequency interval. The proposed scheme leverages cascaded four-wave mixing to generate a multi-peak spectrum while preserving high temporal stability, thereby substantially reducing the spectral power density and thus alleviating stringent constraints on modulation parameters. When seeded into a Yb-doped fiber amplifier, the PM DFFL delivers a pump-limited output power of 2 kW and exhibits a 36.7 dB improvement in the signal-to-Raman ratio relative to a conventional fiber oscillator. Moreover, when employed as the Raman pump source in a Yb-Raman hybrid gain fiber laser system, the PM DFFL achieves performance comparable to that of high-bandwidth PM SFFLs in mitigating spectral broadening and suppressing second-order Raman scattering. These results validate the PM DFFL as a cost-effective and scalable strategy for high-power, temporally stable laser systems.","PeriodicalId":16144,"journal":{"name":"Journal of Lightwave Technology","volume":"44 17","pages":"7723-7728"},"PeriodicalIF":5.2,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148877886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Chaotic Pulse Mismatched Compression Φ-OTDR for Extended Sensing Bandwidth 混沌脉冲不匹配压缩Φ-OTDR扩展传感带宽

IF 5.2 1区工程技术

Journal of Lightwave Technology Pub Date : 2026-09-01 Epub Date: 2026-07-02 DOI: 10.1109/JLT.2026.3709742

Zonglin Lei;Xiaoyu Yang;Muxin Jia;Quan Chai;Roman V. Romashko;Jianzhong Zhang

引用次数: 0

Photothermal-Enabled Simultaneous Flow Rate Detection and Liquid Identification in Microbottle Resonators 微瓶谐振器中光热同步流速检测和液体识别

IF 5.2 1区工程技术

Journal of Lightwave Technology Pub Date : 2026-09-01 Epub Date: 2026-07-07 DOI: 10.1109/JLT.2026.3710966

Zong Cao;Xiaobei Zhang;Qi Zhang;Zhifeng Zhou;Yaowen Yao;Zijie Wang;Yanhua Dong;Yi Huang;Tingyun Wang

{"title":"Photothermal-Enabled Simultaneous Flow Rate Detection and Liquid Identification in Microbottle Resonators","authors":"Zong Cao;Xiaobei Zhang;Qi Zhang;Zhifeng Zhou;Yaowen Yao;Zijie Wang;Yanhua Dong;Yi Huang;Tingyun Wang","doi":"10.1109/JLT.2026.3710966","DOIUrl":"https://doi.org/10.1109/JLT.2026.3710966","url":null,"abstract":"Hollow microbottle resonators (HMBRs) are widely utilized for microfluidic sensing, due to inherent microfluidic channels and resonance-enhanced sensitivity. Here, we demonstrate a microfluidic HMBR sensor based on the photothermal effect, capable of high-sensitivity flow rate detection and liquid identification. The principle is the thermal bistability response varying with flow rate and type of internal liquid, which modulate thermal conductivity. Theoretically, the dependence of HMBR thermal conductivity on thermal bistability response is verified, and the influence of flow rate and liquid type on thermal conductivity are simulated. Experimentally, a maximum flow rate sensitivity of -23.543 pm/(μL/min) is obtained even at a low pump power of 10 mW, and identification of liquid type is achieved by analyzing the spectral variations with flow rate. Furthermore, demodulation of these two properties is realized by employing optical barcode method to monitor spectral multimode variations simultaneously. The proposed scheme offers an alternative method for microfluidic sensing and characterization.","PeriodicalId":16144,"journal":{"name":"Journal of Lightwave Technology","volume":"44 17","pages":"7774-7780"},"PeriodicalIF":5.2,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148877928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Toward 100 ppt-Level CH3CN Sensing: A THz Detection Solution Enabled by a Low-Loss Long-Coiled PP/Ag-Coated Hollow Waveguide 迈向100pt级CH3CN传感：低损耗长卷绕PP/ ag涂层空心波导实现的太赫兹探测解决方案

IF 5.2 1区工程技术

Journal of Lightwave Technology Pub Date : 2026-09-01 Epub Date: 2026-06-30 DOI: 10.1109/JLT.2026.3708711

Sheng Liu;Yingdi Fei;Guangning Hou;Xiaowen Li;Feng Liu;Chengbin Jing;Junhao Chu

{"title":"Toward 100 ppt-Level CH3CN Sensing: A THz Detection Solution Enabled by a Low-Loss Long-Coiled PP/Ag-Coated Hollow Waveguide","authors":"Sheng Liu;Yingdi Fei;Guangning Hou;Xiaowen Li;Feng Liu;Chengbin Jing;Junhao Chu","doi":"10.1109/JLT.2026.3708711","DOIUrl":"https://doi.org/10.1109/JLT.2026.3708711","url":null,"abstract":"Polymer/metal-coated hollow waveguides (HWGs) have emerged as a transformative platform for terahertz (THz) trace gas sensing, which integrate THz wave transmission and gas-wave interaction within a single compact structure. However, existing externally Ag-coated HWG-based acetonitrile (CH3CN) sensors are fundamentally limited by inherent structural bottlenecks, restricting their detection limit to 10 ppb and hindering practical field deployment. To address this critical challenge, we develop a low-loss, highly flexible PP/Ag-coated HWG, and demonstrate its capability to push room-temperature CH3CN sensing to the 100 ppt-level. Targeting the characteristic absorption peak of CH3CN at 275.6 GHz, we optimize the dual-wavelength ultraviolet activation and silver-plating processes, enabling the fabrication of 200 cm-long HWGs with a low transmission loss of 0.96 dB/m. Systematic experimental investigations across 50∼200 cm waveguide lengths and 10∼20 cm bending radii identify the optimal configuration: a 150 cm HWG coiled at a 20 cm radius. The optimized sensor achieves a record LOD of 100 ppt for CH3CN, with a high sensitivity of 0.0134 dB/ppb, ultrafast response/recovery times of 3.5/4.0 s, excellent selectivity against 8 common interfering gases, robust thermal stability from −78.5 to 60 °C, and long-term reliability. This work breaks the LOD bottleneck of room-temperature CH3CN sensors and provides a versatile, fully engineerable platform for miniaturized high-performance THz gas sensors.","PeriodicalId":16144,"journal":{"name":"Journal of Lightwave Technology","volume":"44 17","pages":"7814-7820"},"PeriodicalIF":5.2,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148877943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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