Journal of Lightwave Technology最新文献_第10页

Watt-Level Temporal Stable and Wavelength Flexible Amplified Broadband Light in a Raman Amplifier Pumped by a Tunable Random Fiber Laser 可调谐随机光纤激光器泵浦拉曼放大器中瓦级时间稳定和波长柔性的放大宽带光

IF 4.1 1区工程技术

Journal of Lightwave Technology Pub Date : 2024-10-11 DOI: 10.1109/JLT.2024.3479225

Lu Chen;Bing Han;Wei Deng;Zhitao Leng;Houkun Liang;Han Wu

{"title":"Watt-Level Temporal Stable and Wavelength Flexible Amplified Broadband Light in a Raman Amplifier Pumped by a Tunable Random Fiber Laser","authors":"Lu Chen;Bing Han;Wei Deng;Zhitao Leng;Houkun Liang;Han Wu","doi":"10.1109/JLT.2024.3479225","DOIUrl":"https://doi.org/10.1109/JLT.2024.3479225","url":null,"abstract":"We demonstrate a new method to achieve high-power and wavelength flexible broadband light based on a random fiber laser (RFL)-pumped Raman amplifier seeded by a superluminescent diode (SLD). Benefiting from the wavelength flexibility of the RFL and the broadband Raman gain, the amplified broadband light with watt-level output power and continuously tunable central wavelength could be realized. As a verification, an in-house built cascaded RFL with a wavelength tuning range of 1210–1270 nm is employed as the pump source of the Raman amplifier, and a 1.3 μm broadband SLD source is used as seed light. As a result, the amplified broadband light with the 3 dB bandwidth of 13 nm, output power of 1 W and the tunable central wavelength in 1315–1340 nm is realized. Good temporal stability of the amplified broadband light is also demonstrated due to the use of low-noise Raman amplification in a backward pumping scheme. The method for further power scaling of the broadband light to 10-watt level is also numerically studied. The proposed method paves a new way for high-power and wavelength flexible broadband light amplification, which could be used as powerful sources to improve the system performances of optical coherence tomography, optical fiber communications, interferometric diffusing wave spectroscopy, fiber optic gyroscopes, etc.","PeriodicalId":16144,"journal":{"name":"Journal of Lightwave Technology","volume":"43 3","pages":"1406-1410"},"PeriodicalIF":4.1,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142993193","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}

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Efficient and Reconfigurable Soliton Microcomb Source Based on the 400-nm-Thick Si3N4 Platform

IF 4.1 1区工程技术

Journal of Lightwave Technology Pub Date : 2024-10-11 DOI: 10.1109/JLT.2024.3478815

Hongyi Zhang;Liangjun Lu;Shuxiao Wang;Yan Cai;Jianping Chen;Linjie Zhou

{"title":"Efficient and Reconfigurable Soliton Microcomb Source Based on the 400-nm-Thick Si3N4 Platform","authors":"Hongyi Zhang;Liangjun Lu;Shuxiao Wang;Yan Cai;Jianping Chen;Linjie Zhou","doi":"10.1109/JLT.2024.3478815","DOIUrl":"https://doi.org/10.1109/JLT.2024.3478815","url":null,"abstract":"Dark soliton microcombs with a high repetition rate and high line power can be generated in a nonlinear ring with normal group velocity dispersion (GVD), making them suitable for various applications. This study explores the impact of pump power, coupling coefficient, waveguide loss, and GVD on the dark soliton spectral profile, including the power level of the comb lines and the extent of the flat spectral range. A dark soliton microcomb is experimentally generated based on a 400-nm-thick Si3N4 microring, demonstrating an off-chip −10-dBm bandwidth of 28 nm. Spectral reconstruction of the efficient dark soliton is also achieved. By changing the temperature by 2 °C, the −10-dBm bandwidth is varied from 23 nm to 28 nm and the spectral flatness is modified. Furthermore, the comb spacing of the generated dark soliton can be changed from one free spectral range (FSR) to three FSRs by properly adjusting the pump power and wavelength. The proposed scheme offers a straightforward method for creating an efficient soliton microcomb source with a customizable spectral shape on the 400-nm-thick Si3N4 platform, suitable for a variety of applications.","PeriodicalId":16144,"journal":{"name":"Journal of Lightwave Technology","volume":"43 4","pages":"2003-2011"},"PeriodicalIF":4.1,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143438461","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}

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On Distributed Polarization-Dependent Loss Monitoring and Mitigation: An Optical Layer Approach Enabled by Pilot Tone Technique 分布式偏振相关损耗监测与缓解：导频调音技术实现的光层方法

IF 4.1 1区工程技术

Journal of Lightwave Technology Pub Date : 2024-10-10 DOI: 10.1109/JLT.2024.3477506

Xiang Lin;Zhiping Jiang

{"title":"On Distributed Polarization-Dependent Loss Monitoring and Mitigation: An Optical Layer Approach Enabled by Pilot Tone Technique","authors":"Xiang Lin;Zhiping Jiang","doi":"10.1109/JLT.2024.3477506","DOIUrl":"https://doi.org/10.1109/JLT.2024.3477506","url":null,"abstract":"Polarization-dependent loss (PDL) presents a significant challenge in modern optical fiber networks by causing variations in signal attenuation that depend on the polarization state. This variability degrades the optical signal-to-noise ratio and overall system performance. In most optical links, PDL primarily originates from wavelength selective switches (WSSs), and the variation in signal power occurs because the polarization state of light is not preserved throughout the fiber. Most existing approaches either focus on compensating aggregated PDL through advanced algorithms at the transceiver level or estimating the PDL of each WSS to optimize margin design. In this paper, we introduce a method that integrates distributed PDL monitoring and compensation using low-cost amplitude pilot tone (PT) technology. Our approach involves modulating a polarization-multiplexed signal with two different PT frequencies on each polarization. By measuring the power difference between these polarizations at any PT detection point along the link, we can determine the PDL of devices within the link. Additionally, by placing a polarization controller (PC) between two WSSs, we can adjust the overall PDL by tuning the PC. This enables effective PDL compensation based on our distributed monitoring technique. Extensive experiments have been performed, and the results demonstrate that our method accurately estimates the wavelength-dependent PDL of WSS devices with an accuracy better than <inline-formula><tex-math>$ 0.1$</tex-math></inline-formula> dB. Moreover, it reduces the total PDL of two WSSs from approximately <inline-formula><tex-math>$ 1.5$</tex-math></inline-formula> dB to <inline-formula><tex-math>$ 0.3$</tex-math></inline-formula> dB over a <inline-formula><tex-math>$ 675$</tex-math></inline-formula> km multiple-span optical link.","PeriodicalId":16144,"journal":{"name":"Journal of Lightwave Technology","volume":"43 3","pages":"1268-1275"},"PeriodicalIF":4.1,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142993182","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}

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Journal of Lightwave Technology Information for Authors 光波技术期刊》作者须知

IF 4.1 1区工程技术

Journal of Lightwave Technology Pub Date : 2024-10-09 DOI: 10.1109/JLT.2024.3474513

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Journal of Lightwave Technology Information for Authors 光波技术期刊》作者须知

IF 4.1 1区工程技术

Journal of Lightwave Technology Pub Date : 2024-10-09 DOI: 10.1109/JLT.2024.3474494

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Journal of Lightwave Technology Information for Authors 光波技术期刊》作者须知

IF 4.1 1区工程技术

Journal of Lightwave Technology Pub Date : 2024-10-09 DOI: 10.1109/JLT.2024.3474441

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Journal of Lightwave Technology Publication Information 光波技术期刊》出版信息

IF 4.1 1区工程技术

Journal of Lightwave Technology Pub Date : 2024-10-09 DOI: 10.1109/JLT.2024.3474411

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Efficient Physics-Informed Neural Network for Ultrashort Pulse Dynamics in Optical Fibers 光纤超短脉冲动力学的高效物理信息神经网络

IF 4.1 1区工程技术

Journal of Lightwave Technology Pub Date : 2024-10-09 DOI: 10.1109/JLT.2024.3477409

Jinhong Wu;Zimiao Wang;Ruifeng Chen;Qian Li

{"title":"Efficient Physics-Informed Neural Network for Ultrashort Pulse Dynamics in Optical Fibers","authors":"Jinhong Wu;Zimiao Wang;Ruifeng Chen;Qian Li","doi":"10.1109/JLT.2024.3477409","DOIUrl":"https://doi.org/10.1109/JLT.2024.3477409","url":null,"abstract":"Simulating the propagation of ultrashort pulses in optical fibers is vital for photonic technologies such as laser design, high-speed telecommunications, and high-resolution imaging. The conventional approach using the nonlinear Schrödinger equation (NLSE) is time-intensive and complex, creating a hurdle for real-time experimental design and pulse optimization. While recurrent neural networks (RNNs) have been explored to mitigate these issues, they often require extensive NLSE simulations for training, presenting challenges related to time and cost. To overcome these limitations, we propose a physics-informed neural network (PINN) that efficiently captures ultrashort pulse dynamics, reducing the computational burden and the need for extensive training data. We examine the model's applicability for initial pulse widths above and below 1 ps in optical fibers, evaluating its prediction accuracy, training duration, and speed of prediction. Our findings demonstrate that PINN offers a precise and efficient solution for predicting intricate pulse behaviors. With its adaptability to various input conditions and high predictive accuracy even with limited training data, PINN shows great promise for widespread use in experimental settings.","PeriodicalId":16144,"journal":{"name":"Journal of Lightwave Technology","volume":"43 3","pages":"1372-1380"},"PeriodicalIF":4.1,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142993196","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}

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Journal of Lightwave Technology Publication Information 光波技术期刊》出版信息

IF 4.1 1区工程技术

Journal of Lightwave Technology Pub Date : 2024-10-09 DOI: 10.1109/JLT.2024.3474492

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Journal of Lightwave Technology Pub Date : 2024-10-09 DOI: 10.1109/JLT.2024.3474496

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