Optical Fiber Technology最新文献_第4页

Photoacoustic methane detection assisted by a H2-filled anti-resonant hollow-core fiber laser

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-01-29 DOI: 10.1016/j.yofte.2025.104126

Cuiling Zhang , Jose Enrique Antonio-Lopez , Rodrigo Amezcua-Correa , Yazhou Wang , Christos Markos

{"title":"Photoacoustic methane detection assisted by a H2-filled anti-resonant hollow-core fiber laser","authors":"Cuiling Zhang , Jose Enrique Antonio-Lopez , Rodrigo Amezcua-Correa , Yazhou Wang , Christos Markos","doi":"10.1016/j.yofte.2025.104126","DOIUrl":"10.1016/j.yofte.2025.104126","url":null,"abstract":"<div><div>The anti-resonant hollow-core fiber (ARHCF) lasers in the near-infrared (NIR) and mid-infrared (MIR) spectral domain show a great potential for spectroscopy and high-resolution gas detection. In this work, we demonstrated the generation of a frequency-comb-like Raman laser with high pulse energy spanning from ultraviolet (UV) (328 nm) to NIR (2065 nm wavelength) based on a hydrogen (H<sub>2</sub>)-filled 7-ring ARHCF. The H<sub>2</sub>-filled ARHCF is pumped with a custom-laser at 1044 nm with ∼ 75 μJ pulse energy and ∼ 3.7 ns pulse duration. Through stimulated Raman scattering process, we employed the sixth-order rotational Raman Stokes located at ∼ 1650 nm as a case example to demonstrate how the developed high-energy and narrow-linewidth laser source can effectively be used to detect CH<sub>4</sub> in the NIR-II region using the photoacoustic modality. We reported the efficient detection of CH<sub>4</sub> with sensitivity as low as ∼ 550 ppb with an integration time of ∼ 40 s. In conclusion, the main goal of this work is to demonstrate and emphasize the potential of the gas-filled ARHCF laser technology for compact next-generation spectroscopy across different spectral regions.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"90 ","pages":"Article 104126"},"PeriodicalIF":2.6,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143129103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Differential fiber optic humidity sensor based on superhydrophilic SiO2/polyethylene glycol composite film with linear response

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-01-28 DOI: 10.1016/j.yofte.2025.104150

Yutong Qi , Jinze Li , Yuxin Chen , Bao Zhu , Xingchen Zhou , Xuefei Xiao , Zheyuan Gu , Jun Qian , Chuanyang He , Min Lai , Yan Ma , Bo Liu

{"title":"Differential fiber optic humidity sensor based on superhydrophilic SiO2/polyethylene glycol composite film with linear response","authors":"Yutong Qi , Jinze Li , Yuxin Chen , Bao Zhu , Xingchen Zhou , Xuefei Xiao , Zheyuan Gu , Jun Qian , Chuanyang He , Min Lai , Yan Ma , Bo Liu","doi":"10.1016/j.yofte.2025.104150","DOIUrl":"10.1016/j.yofte.2025.104150","url":null,"abstract":"<div><div>A differential fiber optic humidity sensor based on superhydrophilic SiO<sub>2</sub>/polyethylene glycol (PEG) composite film is presented. With exposure to humid air, the physical properties of SiO<sub>2</sub>/PEG composite film coated on the sensing region changes, disturbing transmission of evanescent wave of fiber and leading to change of the output light intensity of sensing fiber. The output light intensity of humidity sensor increases with the increase of relative humidity (RH), which is attributed to the expansion of polymeric film and less scattering of light. The sensor shows a linear response of the ratio of output light intensity of sensing fiber to that of reference fiber <em>I</em><sub>S</sub>/<em>I</em><sub>R</sub> to RH with a correlation coefficient of 0.991 in the range of 11–81 %RH. The ratio <em>I</em><sub>S</sub>/<em>I</em><sub>R</sub> is independent of the intensity of optical source, indicating that differential sensor structure enables humidity testing immune to instability of light source. In addition, the sensor possesses excellent reversibility, stability and repeatability.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"90 ","pages":"Article 104150"},"PeriodicalIF":2.6,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143129102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mode-selection of a fiber laser using a microfiber knot resonator functionalized with 2D planar-shaped GO-MoS2 film

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-01-27 DOI: 10.1016/j.yofte.2025.104142

Xinyu Chen, Jiale Xie, Hongdan Wan, Zijia Zhou, Xueying Lin, Jingli Wang, Taoping Hu

{"title":"Mode-selection of a fiber laser using a microfiber knot resonator functionalized with 2D planar-shaped GO-MoS2 film","authors":"Xinyu Chen, Jiale Xie, Hongdan Wan, Zijia Zhou, Xueying Lin, Jingli Wang, Taoping Hu","doi":"10.1016/j.yofte.2025.104142","DOIUrl":"10.1016/j.yofte.2025.104142","url":null,"abstract":"<div><div>A flexible fiber laser mode-selected by a microfiber knot resonator (MKR) functionalized with 2D planar-shaped graphene-oxide (GO)-MoS<sub>2</sub> composite film (GMCF) is proposed and demonstrated. As far as we know, this is the first report of using novel transferring method for forming 2D planar-shaped GMCF on a low-loss MKR for mode-selection in fiber ring cavity. The 2D GMCF is formed on the surface of MKR with high stability due to effects of surface tension and recirculation flow. Mode-locked fiber laser operation with single-wavelength output is realized by saturable absorption effect of the GMCF. The pulse period and repetition frequency are 118.14 ns and 8.464 MHz, respectively. In addition, single-wavelength, tunable lasing using the GMCF-MKR as narrow-bandwidth filter is achieved with a side-mode suppression ratio of 53 dB, a 3 dB bandwidth of < 0.02 dB and a wavelength tuning range from 1551.6 nm to 1552.6 nm. The proposed flexible fiber laser using the 2D planar-shaped GMCF-MKR will have a wide range of applications in the fields of distributed fiber sensing, laser coherent communication and optical precision measurement.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"90 ","pages":"Article 104142"},"PeriodicalIF":2.6,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143129101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-resolution distributed temperature sensing along polymer optical fiber using Brillouin optical correlation-domain reflectometry

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-01-27 DOI: 10.1016/j.yofte.2025.104144

Seiga Ochi , Keita Kikuchi , Shuto Tsurugai , Heeyoung Lee , Yosuke Mizuno

引用次数: 0

Design and development of wagon load monitoring system using fibre Bragg grating sensor

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-01-25 DOI: 10.1016/j.yofte.2025.104149

Suchandana Mishra , Preeta Sharan , Abdullah N. Alodhayb , Tahani A. Alrebdi , Anup M. Upadhyaya

{"title":"Design and development of wagon load monitoring system using fibre Bragg grating sensor","authors":"Suchandana Mishra , Preeta Sharan , Abdullah N. Alodhayb , Tahani A. Alrebdi , Anup M. Upadhyaya","doi":"10.1016/j.yofte.2025.104149","DOIUrl":"10.1016/j.yofte.2025.104149","url":null,"abstract":"<div><div>The railway transportation system aims at optimal performance, lower energy usage, longer service availability, and high safety levels. This can be achieved by using smart monitoring technologies that do not disrupt train operations and increase passenger comfort. Fiber Bragg Grating (FBG) sensors on rail allows real time conditional monitoring of train parameters such as speed, wagon weight, axle count of the trains. This paper presents a weigh-in-motion system using optical sensors, for 1:3 downscale train test rig, which measures the dynamic axle loads of the train and calculate the related static values. The response of the wheel-rail interaction is measured and signal is processed in MATLAB to produce a calibration coefficient, 536.1 kg/nm that directly reflects wagon load for different loaded and unloaded conditions of the laboratory train. The results show that fiber Bragg grating sensor which is electromagnetic immune system is a viable alternative to axle load detection systems with a sensitivity of 1.36 pm/με. The technology improves the efficiency of maintenance management and monitoring the wagons over weight condition in real time to prevent train derailment.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"90 ","pages":"Article 104149"},"PeriodicalIF":2.6,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143129580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wavelength interval adjustable multi-wavelength mode-locked erbium-doped fiber laser with high-order mode output

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-01-24 DOI: 10.1016/j.yofte.2025.104146

Yinghao Guo , Youchao Jiang , Jiao Gao , Wenqian Liu , Ya Shen , Wenhua Ren , Guobin Ren

引用次数: 0

Nickel ion high concentration sensor based on cladding etched FBG with Chitosan/Dimethylglyoxime sensing structure

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-01-23 DOI: 10.1016/j.yofte.2024.104122

Shaowei Ma, Silong Li, Shuxian Gao, Hongyu Song, Qi Wang

引用次数: 0

An ultra-high extinction ratio broadband photonic crystal fiber splitter designed for the terahertz band

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-01-23 DOI: 10.1016/j.yofte.2025.104136

Chao Liu , Yuan Sun , Yanshu Zeng , Wei Liu , Jingwei Lv , Lin Yang , Jianxin Wang , Qiang Liu , Paul K. Chu

{"title":"An ultra-high extinction ratio broadband photonic crystal fiber splitter designed for the terahertz band","authors":"Chao Liu , Yuan Sun , Yanshu Zeng , Wei Liu , Jingwei Lv , Lin Yang , Jianxin Wang , Qiang Liu , Paul K. Chu","doi":"10.1016/j.yofte.2025.104136","DOIUrl":"10.1016/j.yofte.2025.104136","url":null,"abstract":"<div><div>Terahertz (THz) polarization beam splitters (PBS) are valuable for applications in areas such as wireless high-speed communications and terahertz imaging. In this paper, a dual-core terahertz photonic crystal fiber (PCF) polarization beam splitter is proposed to achieve short length, high extinction ratio and wide bandwidth. This PBS has a cyclic olefin copolymer (COC) as the base material, and the dual-core structure is realized by introducing a central air hole. Performance analysis, conducted using the finite element method, reveals that the proposed PBS achieves a minimum length of 29.50688 mm, a bandwidth of 0.19 THz between 0.47 THz and 0.66 THz, and a maximum extinction ratio of −324.257 dB at an incident light frequency of 0.54 THz, where the two polarization modes are nearly completely separated. In addition, the PBS exhibits good manufacturing tolerances with a structural error of ± 1 %. These excellent properties indicate that THz PCF-PBS has great potential for applications in terahertz-band optical communication, optical sensing and optoelectronic detection.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"90 ","pages":"Article 104136"},"PeriodicalIF":2.6,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143129658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Photonics-based physical encryption and decryption for secure data transmission leveraging the Talbot effect

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-01-22 DOI: 10.1016/j.yofte.2025.104140

Chulun Lin , Taixia Shi , Yiqing Liu , Yang Chen

{"title":"Photonics-based physical encryption and decryption for secure data transmission leveraging the Talbot effect","authors":"Chulun Lin , Taixia Shi , Yiqing Liu , Yang Chen","doi":"10.1016/j.yofte.2025.104140","DOIUrl":"10.1016/j.yofte.2025.104140","url":null,"abstract":"<div><div>A novel microwave photonic scheme for secure data transmission in optical fibers is proposed. The security of the scheme is guaranteed by physical encryption and decryption via the temporal Talbot effect in dispersive mediums. First, the original data is randomized in the digital domain by performing an exclusive OR operation using a random matrix. Subsequently, a time-varying multi-tone electrical signal, which represents the randomized data matrix, is modulated onto an optical carrier. The optical signal after modulation is then phase-modulated by a temporal Talbot array illuminator (TAI) signal, and the optical signal after discrete quadratic phase modulation will lose its original appearance in the frequency domain and be further dispersed in the first dispersive medium. Due to the dispersion that does not match the TAI signal exactly, the waveform after the first dispersive medium is a noise-like signal. Hence, the physical encryption of the original data is successfully achieved. As the optical signal passes a second dispersive medium that makes the total dispersion match the TAI signal, the temporal waveform of the noise-like signal after photodetection is transformed into pulses. “1” and “0” in the randomized data matrix are represented through the presence and absence of pulses, and the physical decryption is achieved. By further processing the recovered data matrix using the random matrix, the original data can be recovered. The physical layer security of the proposed scheme and its fiber transmission capability are demonstrated. 8-Gbit/s data is transmitted, encrypted, and decrypted using two dispersive mediums and an optical fiber of 10 to 200 km, and error-free transmission is achieved. Many factors that affect the encryption, decryption, and transmission performance of the system have been analyzed.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"90 ","pages":"Article 104140"},"PeriodicalIF":2.6,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143129100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Aircraft landing gear load prediction based on LSTM-KAN network

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-01-22 DOI: 10.1016/j.yofte.2024.104112

Kaiyuan Feng , Du Wang , Mingli Dong , Xiaoping Lou , Yiqun Zhang , Chaofan Deng , Lianqing Zhu

{"title":"Aircraft landing gear load prediction based on LSTM-KAN network","authors":"Kaiyuan Feng , Du Wang , Mingli Dong , Xiaoping Lou , Yiqun Zhang , Chaofan Deng , Lianqing Zhu","doi":"10.1016/j.yofte.2024.104112","DOIUrl":"10.1016/j.yofte.2024.104112","url":null,"abstract":"<div><div>A long short-term memory kolmogorov-arnold network (LSTM-KAN) computational model that can accurately estimate the loads of an aircraft landing gear is proposed, which can accurately estimate the loads based on monitoring the strain distribution of the landing gear structure. First, the ground strain load test system based on the landing gear structure is built. Fiber-optic grating strain sensors were installed at the monitoring positions of the landing gear, and the strain data under various loading conditions were collected using the loading system. Experimental datasets for model training and testing were generated based on the obtained strain and load data, the strain-load calculation model was trained and tested, and its prediction results were compared with the traditional linear regression method and other algorithms using the same experimental datasets. The load prediction results show that the maximum absolute percentage errors of the loads in the three directions are 2.74 %, 2.41 % and 3.29 %, respectively, and the corresponding root-mean-square errors are 51.31 N, 202.29 N and 39.86 N, respectively, and the overall average absolute percentage errors are reduced to less than 1 %, and the three-direction ones are 0.81 %, 0.73 % and 0.88 %, respectively, which proves that the LSTM-KAN model has better performance than the multiple linear regression method and other neural network algorithms, and can be effectively and accurately predicted in the field of health monitoring of aircraft landing gears and other aircraft structures.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"90 ","pages":"Article 104112"},"PeriodicalIF":2.6,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143129656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0