Optical Fiber Technology最新文献

Abundant soliton states based on Ta2AlC saturable absorber in all-fiber laser 全光纤激光器中基于Ta2AlC饱和吸收体的丰富孤子态

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-05-01 DOI: 10.1016/j.yofte.2025.104254

Yu Wei , Xiaoyu Zhao , Kaixin Li , Shixian Sun , Weijie Xu , Jiale Wu , Yingfei Zhao , Guomei Wang , Wenfei Zhang , Caixun Bai , Cheng Lu , Nannan Xu , Huanian Zhang

{"title":"Abundant soliton states based on Ta2AlC saturable absorber in all-fiber laser","authors":"Yu Wei , Xiaoyu Zhao , Kaixin Li , Shixian Sun , Weijie Xu , Jiale Wu , Yingfei Zhao , Guomei Wang , Wenfei Zhang , Caixun Bai , Cheng Lu , Nannan Xu , Huanian Zhang","doi":"10.1016/j.yofte.2025.104254","DOIUrl":"10.1016/j.yofte.2025.104254","url":null,"abstract":"<div><div>The saturation absorption characteristics of layered ternary transition metal carbide Ta<sub>2</sub>AlC were investigated in this study. The passive mode-locking erbium-doped fiber laser (EDFL) was fabricated using Ta<sub>2</sub>AlC saturable absorber (SA), which was prepared by depositing nanosheets on a tapered fiber. A conventional soliton (CS) with a repetition frequency of 5.25 MHz and a 3 dB bandwidth of 2.59 nm was obtained at pump powers ranging from 409 mW to 599 mW. At a pump power of 466 mW, third-order, fourth-order and fifth-order harmonic mode-locking (HML) were observed. The fifth-order HML exhibited a repetition frequency of 26.1 MHz, while the Six-pulse and Seven-pulse phenomena were observed to be stable. In addition, bound state solitons with a modulation period of 0.58 nm were obtained at a pump power of 447 mW. In this paper, Ta<sub>2</sub>AlC generated an abundance of soliton states, which held significant implications for ultra-fast laser pulses and optical communications. It is evident that Ta<sub>2</sub>AlC has excellent nonlinear optical characteristics, thereby offering remarkable performance and application prospects.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"93 ","pages":"Article 104254"},"PeriodicalIF":2.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143890708","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

Development of fiber Bragg grating underground gas flow sensor 光纤布拉格光栅地下气体流量传感器的研制

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-05-01 DOI: 10.1016/j.yofte.2025.104257

Dengpan Zhang, Kai Liang, Yonggang Yan, Kesong Fan, Wenwen Ma, Xinhu Li

{"title":"Development of fiber Bragg grating underground gas flow sensor","authors":"Dengpan Zhang, Kai Liang, Yonggang Yan, Kesong Fan, Wenwen Ma, Xinhu Li","doi":"10.1016/j.yofte.2025.104257","DOIUrl":"10.1016/j.yofte.2025.104257","url":null,"abstract":"<div><div>Coal mines have abundant coal seam gas reserves underground, and disasters such as coal and gas outbursts and gas explosions occur from time to time. The key work to reduce coal mining safety accidents is to use the “first pumping, then mining” method to control coal mine gas. A gas extraction flow measurement sensor was developed using fiber Bragg grating (FBG) and an orifice plate. In response to the environmental conditions and flow range of underground gas extraction, a composite strain mechanism consisting of a small-diameter throttling orifice plate and an elastic sensitive membrane was adopted. The gas flow pressure difference on both sides of the orifice plate caused deformation in the elastic sensitive unit, and the fiber Bragg grating was used to detect the deformation of the elastic sensitive unit; A dual membrane structure gas flow sensor is proposed to address the stress–temperature cross sensitivity issue in fiber optic grating strain detection. Based on the mechanical free state configuration, a secondary grating is attached to the same material as the strain grating for temperature compensation, effectively eliminating the cross sensitivity problem of the grating and improving the measurement accuracy of the sensor. The experimental results show that the nonlinear error is 1.57%, the hysteresis coefficient is 3.14%, and the repeatability error is 8.3%. The experimental results fit well with the theoretical analysis.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"93 ","pages":"Article 104257"},"PeriodicalIF":2.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143890779","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

Lightweight fiber optic intrusion detection system 轻型光纤入侵检测系统

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-04-30 DOI: 10.1016/j.yofte.2025.104226

Fangzhou Xu , Yanbing Liu , Qi Meng , Chen Wang , Peng Zhang , Qingbo Yang , Chao Feng , Ying Shang , Jiancai Leng

{"title":"Lightweight fiber optic intrusion detection system","authors":"Fangzhou Xu , Yanbing Liu , Qi Meng , Chen Wang , Peng Zhang , Qingbo Yang , Chao Feng , Ying Shang , Jiancai Leng","doi":"10.1016/j.yofte.2025.104226","DOIUrl":"10.1016/j.yofte.2025.104226","url":null,"abstract":"<div><div>Border security stands as a fundamental element in ensuring the property safety of citizens. Despite significant strides in artificial intelligence technology for border security and intrusion practices, the majority of research on intrusion signal classification primarily focuses on enhancing accuracy, with limited consideration of resource constraints. To construct a compact and efficient model that meets the requirements of small computing devices, this paper proposes a boundary security intrusion event recognition algorithm based on a distributed fiber optic sensing system. This algorithm combines the Gram Angle Field (GAF) and knowledge distillation network. The proposed approach establishes an efficient model with fewer parameters and computational resources. Compared to traditional vibration sensing systems, the Distributed Acoustic Sensing System (DAS) better leverages the advantages of distributed fiber extension. It utilizes the GAF to transform one-dimensional temporal signals into two-dimensional images, effectively filtering the impact of power fluctuations in the optical path on intrusion signals, and extracting deeper temporal features into the image. Knowledge distillation transfers the feature information trained by the teacher model to the smaller student model for intrusion signal recognition. The recognition accuracy reaches up to 98%, with a detection response time of approximately 0.78 s. Research results indicate that this approach can be utilized in developing high-precision lightweight intrusion signal detection models.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"93 ","pages":"Article 104226"},"PeriodicalIF":2.6,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143886118","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

Large dynamic range dual FBG accelerometer for low-frequency vibration detection 用于低频振动检测的大动态范围双光纤光栅加速度计

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-04-30 DOI: 10.1016/j.yofte.2025.104258

Bingbing Zhang, Tigang Ning, Jingjing Zhen, Jing Li

{"title":"Large dynamic range dual FBG accelerometer for low-frequency vibration detection","authors":"Bingbing Zhang, Tigang Ning, Jingjing Zhen, Jing Li","doi":"10.1016/j.yofte.2025.104258","DOIUrl":"10.1016/j.yofte.2025.104258","url":null,"abstract":"<div><div>Monitoring low-frequency and ultra-low-frequency vibration waves has wide-ranging applications in structural health monitoring, seismic engineering, environmental vibration control, mechanical equipment maintenance, and geological disaster monitoring. This study presents a large dynamic dual-FBG(Fiber Bragg Grating) accelerometer designed for detecting vibration waves. Initially, the mechanical properties of the sensor are theoretically derived. Subsequently, simulation software is utilized to analyze its dynamic characteristics, verifying the theoretical derivations and providing simulation data to support physical fabrication and experimental testing. Following this, physical prototypes are constructed, and a testing platform is established to calibrate various performance metrics of the sensor, followed by an analysis of the test data. The findings show that the developed sensor can capture vibration waves between 0.05 and 30 Hz, with detection acceleration as low as 0.0005 g at the 0.05 Hz frequency point and a dynamic range of 77.61 dB. This ability to detect low acceleration in the low-frequency and ultra-low-frequency bands is expected to address the existing gap in low-frequency micro-vibration monitoring using FBG sensors.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"93 ","pages":"Article 104258"},"PeriodicalIF":2.6,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143890705","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

U-shaped MZI optical fiber temperature sensor based on PDMS sensitization 基于PDMS敏化的u型MZI光纤温度传感器

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-04-29 DOI: 10.1016/j.yofte.2025.104252

Yaxun Zhang , Pingbang Huang , Wenmi Li , Zhiliang Huang , Xiaoyun Tang , Zhihai Liu , Yu Zhang , Libo Yuan

引用次数: 0

Distributed acoustic sensing with high response bandwidth and large dynamic range using multi-frequency time-slot multiplexing pulses based on UWFBG array 基于UWFBG阵列的多频时隙复用脉冲分布式声传感具有高响应带宽和大动态范围

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-04-28 DOI: 10.1016/j.yofte.2025.104247

Ke Tang , Minghong Yang , Yu Wang , Ruofan Wang , Jianguan Tang , Cheng Cheng , Cong Liu

引用次数: 0

PDMS-based liquid-core optical fiber fluorescence pressure sensor 基于pdm的液芯光纤荧光压力传感器

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-04-28 DOI: 10.1016/j.yofte.2025.104253

Zhoujie Li , Ting Liu , Xuezhi Huang , Qing Yu , Yin Wang , Fang Cheng , Tegoeh Tjahjowidodo

{"title":"PDMS-based liquid-core optical fiber fluorescence pressure sensor","authors":"Zhoujie Li , Ting Liu , Xuezhi Huang , Qing Yu , Yin Wang , Fang Cheng , Tegoeh Tjahjowidodo","doi":"10.1016/j.yofte.2025.104253","DOIUrl":"10.1016/j.yofte.2025.104253","url":null,"abstract":"<div><div>Optical fiber pressure sensors have become indispensable in various fields due to their unique advantages. Traditional sensors based on fiber Bragg gratings or Fabry-Pérot resonators offer high sensitivity and the ability to perform distributed measurements. However, these sensors often suffer from complex manufacturing processes and high costs. To address these challenges, we propose an innovative approach utilizing a polydimethylsiloxane (PDMS)-based liquid-core optical fiber probe for pressure sensing. The fiber probe is prepared by sealing a fluorescent dye solution within the PDMS-based hollow-core fiber and then inserting the end face of a silica optical fiber into it, which only relies on extremely simple fabrication operations and cost-effective materials. When integrated with an excitation laser and a fiber spectrometer, the sensor enables calibration and quantitative detection of pressure based on the correlation between pressure and the fluorescence intensity. The experimental results show that the sensor exhibits a high sensitivity of 400.508 a.u./N and a high resolution of 0.093 N, along with high detection accuracy, good repeatability and stability, rapid dynamic response, and excellent long-term stability within the 0–30 N load range. Moreover, it is capable of effectively monitoring various human activities, such as finger tapping and palm pressure, which are crucial for applications in medical monitoring, wearable devices, human activity monitoring, and smart products.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"93 ","pages":"Article 104253"},"PeriodicalIF":2.6,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143882448","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

A strain sensor based on vernier effect for long air-microcavity Fabry Perot interferometer 基于游标效应的长空气微腔法布里佩罗干涉仪应变传感器

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-04-25 DOI: 10.1016/j.yofte.2025.104207

Xiyuan Zhao , Chen Chen , Peng Yang , Qianqian Peng , Xiang An , Ziyan Ren , Yujuan Zhang , Baojin Peng

{"title":"A strain sensor based on vernier effect for long air-microcavity Fabry Perot interferometer","authors":"Xiyuan Zhao , Chen Chen , Peng Yang , Qianqian Peng , Xiang An , Ziyan Ren , Yujuan Zhang , Baojin Peng","doi":"10.1016/j.yofte.2025.104207","DOIUrl":"10.1016/j.yofte.2025.104207","url":null,"abstract":"<div><div>A strain sensor based on long air-cavity Fabry Perot interferometer (LAFPI) is proposed. A single-mode fiber (SMF) undergoes wet chemical etching followed by delayed tapered welding to create a long air-microcavity with a cavity length of 184.25 μm and a free spectral range (FSR) of 6.52 nm. The delayed welding technique extends the cavity length of the LAFPI, thereby reducing the FSR, which facilitates the vernier effect. By cascading the simulated reference arm, the sensitivity amplification factor of LAFPI becomes easily adjustable, while the reference arm remains unaffected by environmental conditions, making the sensor suitable for various detection requirements. The strain sensitivity of the LAFPI was measured at 3.23 pm/με, and the sensitivity is enhanced to 36.32 pm/με, achieving an amplification of 11.18 times by vernier effect. Furthermore, the air-microcavity demonstrated temperature insensitivity, with a maximum wavelength shift of only 0.05 nm in the resonance valley over a temperature range of 30–100℃, highlighting its resistance to temperature interference. This sensor offers notable advantages, including adjustable high sensitivity, temperature resistance, simple production process, and low cost. It is well-suited for strain measurement in complex environments, demonstrating significant commercial potential.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"93 ","pages":"Article 104207"},"PeriodicalIF":2.6,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143869080","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

Ti2C MXene-based arc-shaped fiber SPR sensor for refractive index sensing 用于折射率传感的Ti2C mxena型弧形光纤SPR传感器

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-04-24 DOI: 10.1016/j.yofte.2025.104249

Maryam Jasmine Mohd Makhfuz , Norazriena Yusoff , Harith Ahmad

{"title":"Ti2C MXene-based arc-shaped fiber SPR sensor for refractive index sensing","authors":"Maryam Jasmine Mohd Makhfuz , Norazriena Yusoff , Harith Ahmad","doi":"10.1016/j.yofte.2025.104249","DOIUrl":"10.1016/j.yofte.2025.104249","url":null,"abstract":"<div><div>In this paper, we investigated the surface plasmon resonance (SPR) effects of a gold (Au)-coated arc-shaped fiber sensing probe layered with titanium carbide (Ti<sub>2</sub>C) at different concentrations. The Ti<sub>2</sub>C MXene was prepared through <em>in situ</em> selective etching of the MAX phase precursor, titanium aluminum carbide (Ti<sub>2</sub>AlC). The arc-shaped fiber sensing probe was fabricated using a wheel polishing technique with a loss of approximately 2.5 dB. A 50 nm gold layer was deposited on the sensing surface using the e-beam deposition technique, followed by the coating of Ti<sub>2</sub>C MXene <em>via</em> the dip coating approach. To evaluate the performance improvement of the sensors, various refractive indices (RI) of analytes were tested. The study revealed that compared to the Au-coated arc-shaped fiber sensing device, the sensitivity of the 10 mg/mL concentration of Ti<sub>2</sub>C coated on Au-coated arc-shaped fiber increased by 45.51 %. For the 15 mg/mL concentration, the sensitivity boost was approximately 128.01 %, while the 20 mg/mL concentration yielded a sensitivity improvement of about 54.02 %. The performance analysis indicates that the optimal concentration of Ti<sub>2</sub>C coating is 15 mg/mL. The Ti<sub>2</sub>C/Au-coated arc-shaped fiber sensing probe offers distinct advantages, enhancing sensitivity and achieving a significantly higher figure of merit (FOM) compared to the Au-coated arc-shaped fiber sensing probe. This study highlights the significant potential of Ti<sub>2</sub>C/Au-coated arc-shaped fiber sensors for practical sensing applications.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"93 ","pages":"Article 104249"},"PeriodicalIF":2.6,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143869079","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

Highly accurate phase demodulation algorithm for white light interference 高精度白光干涉相位解调算法

IF 2.6 3区计算机科学

Optical Fiber Technology Pub Date : 2025-04-24 DOI: 10.1016/j.yofte.2025.104248

Jiyang Li , Jinhui Shi , Dong Guang , Shenglai Zhen , Jun Zhu , Liang Lu , Cheng Zuo , Xuqiang Wu , Jiatong Luo , Benli Yu

{"title":"Highly accurate phase demodulation algorithm for white light interference","authors":"Jiyang Li , Jinhui Shi , Dong Guang , Shenglai Zhen , Jun Zhu , Liang Lu , Cheng Zuo , Xuqiang Wu , Jiatong Luo , Benli Yu","doi":"10.1016/j.yofte.2025.104248","DOIUrl":"10.1016/j.yofte.2025.104248","url":null,"abstract":"<div><div>In traditional white light interference phase demodulation technology (T-WLPDT), the accuracy issue caused by delay time has always existed. To control the distortion degree within a certain range, it is inevitable that operating bandwidth is necessary to be sacrificed. In this paper, the ratio between demodulation signal output by T-WLPDT and true signal is derived and formulated as compensation factor (CF). CF is then applied to compensate for the spectral signal output by T-WLPDT, thereby achieving high-accuracy demodulation and expansion of operating bandwidth. The experiment result shows that compared to T-WLPDT, the bandwidth of compensated white light interference phase demodulation technology (C-WLPDT) has extended 16 dB (6.28 times), with the distortion limited to 1.69 %. Besides, the study analyzed the advantages of phase compression of white light interference in demodulating low-frequency large phase-amplitude signals. When demodulating signals of 100 Hz, C-WLPDT presents 41 dB (108.1 times) phase compression, enabling measurement of signals with larger phase-amplitude than narrow linewidth laser phase demodulation technology (NLPDT). The work is of great significance to improve measurement accuracy of white light interference, and promotes it more applicable to the sensing field. Meanwhile, the phase compression performance of C-WLPDT provides an idea to detect low-frequency large phase-amplitude signals.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"93 ","pages":"Article 104248"},"PeriodicalIF":2.6,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143869078","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