Optical Fiber Technology最新文献_第5页

Terahertz waveguiding through 3D-Printed Bar-Nested Hollow-Core optical fibers 通过3d打印条形嵌套空心光纤的太赫兹波导

IF 2.7 3区计算机科学

Optical Fiber Technology Pub Date : 2026-05-01 Epub Date: 2025-12-21 DOI: 10.1016/j.yofte.2025.104529

Muhammad Zain Siddiqui , Kohei Chiba , Yoshiaki Kanamori , Mustafa Ordu

{"title":"Terahertz waveguiding through 3D-Printed Bar-Nested Hollow-Core optical fibers","authors":"Muhammad Zain Siddiqui , Kohei Chiba , Yoshiaki Kanamori , Mustafa Ordu","doi":"10.1016/j.yofte.2025.104529","DOIUrl":"10.1016/j.yofte.2025.104529","url":null,"abstract":"<div><div>Terahertz (THz) frequencies, ranging from 0.1 to 10 THz, offer unique sensing, imaging, and high-speed communications applications. However, these electromagnetic radiations experience high attenuation in free-space transmission, emphasizing the need for a low-loss waveguiding solution, often limited by material absorption. Negative curvature hollow-core fibers offer a promising solution by confining the light within an air core region, further reducing material absorption losses. This study presents the design, fabrication, and characterization of a simple bar-nested tubular hollow core fiber tailored for operation in the THz regime. The bar nested four-tube fiber design parameters are numerically optimized using finite element simulations. The cyclic olefin copolymer-based fiber is fabricated through fused deposition modeling in a 3D printer, enabling rapid prototyping and intricate fiber designs. The experimental results demonstrated a measured transmission loss of 7.6 dB/m for the fabricated fiber at 750 GHz with a bandwidth of 100 GHz. The differences observed between numerical and experimental losses are attributed to the fabrication imperfections, surface scattering losses, and coupling losses, highlighting the challenges and potential of 3D printing for THz waveguide development.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"98 ","pages":"Article 104529"},"PeriodicalIF":2.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145841858","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

100 mW mid-infrared Ce3+-doped chalcogenide fiber laser 100mw中红外掺Ce3+硫系化物光纤激光器

IF 2.7 3区计算机科学

Optical Fiber Technology Pub Date : 2026-05-01 Epub Date: 2025-12-22 DOI: 10.1016/j.yofte.2025.104524

Vasily Koltashev , Andrei Pushkin , Maxim Sukhanov , Aleksander Velmuzhov , Sergei Sverchkov , Boris Galagan , Boris Denker , Mikhail Frolov , Fedor Potemkin , Victor Plotnichenko

引用次数: 0

Stable mode-locking in extended cavities: A low-threshold EDFL empowered by AFI-zeolite-synthesized carbon nanotubes 扩展腔中的稳定模式锁定：由afi -沸石合成的碳纳米管增强的低阈值EDFL

IF 2.7 3区计算机科学

Optical Fiber Technology Pub Date : 2026-05-01 Epub Date: 2026-01-06 DOI: 10.1016/j.yofte.2026.104557

Zhongxin Lin , Yuxiaoting Fan , Zihe Fan , Qi Zhao , Lang Sun , Shuangchen Ruan , Dalin Sun , Xintong Xu

{"title":"Stable mode-locking in extended cavities: A low-threshold EDFL empowered by AFI-zeolite-synthesized carbon nanotubes","authors":"Zhongxin Lin , Yuxiaoting Fan , Zihe Fan , Qi Zhao , Lang Sun , Shuangchen Ruan , Dalin Sun , Xintong Xu","doi":"10.1016/j.yofte.2026.104557","DOIUrl":"10.1016/j.yofte.2026.104557","url":null,"abstract":"<div><div>Ultrafast erbium-doped fiber lasers (EDFLs) operating at 1.5 μm were essential for advanced photonic applications. Beyond merely pursuing the shortest pulse width, developing EDFLs with robust environmental adaptability and reliable operation under practical conditions has become a critical challenge for real-world deployment. We reported an erbium-doped fiber laser based on a novel carbon nanotube saturable absorber (CNT-SA), which achieved self-starting mode-locking at a pump power as low as 40 mW and, more importantly, exhibited exceptional robustness against cavity dispersion variations--a critical yet often overlooked attribute for practical ultrafast laser sources. The CNT-SA, engineered via hydrothermal synthesis using an AFI zeolite template, not only provided the laser with a low threshold advantage but, more importantly, its broadband response and ultrafast recovery dynamics enabled the laser to maintain stable mode-locked operation even when the cavity length was actively adjusted by over 40 m, with a spectral shift of less than 4 nm. This ability to combine low-power self-starting with superior dispersion tolerance had not been reported in previous studies, offering an ideal solution for applications requiring long cavities or environmental stability, such as distributed sensing and high-energy pulse accumulation systems. This work, therefore, prioritizes the balance among low threshold, high stability, and strong dispersion tolerance, aiming to bridge the gap between laboratory performance benchmarks and application-ready ultrafast sources.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"98 ","pages":"Article 104557"},"PeriodicalIF":2.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145926942","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

Micro-distance measurement based on multi-core fibers 基于多芯光纤的微距离测量

IF 2.7 3区计算机科学

Optical Fiber Technology Pub Date : 2026-05-01 Epub Date: 2026-01-02 DOI: 10.1016/j.yofte.2025.104550

Haoran Li, Xin Ma

引用次数: 0

Multi-layer terahertz fiber with a triangular core shape for low-loss propagation 具有三角形芯形的多层太赫兹光纤，用于低损耗传播

IF 2.7 3区计算机科学

Optical Fiber Technology Pub Date : 2026-05-01 Epub Date: 2026-01-15 DOI: 10.1016/j.yofte.2026.104558

Xuan Yu , Fei Yu , Cheng Lei , Du Wang

引用次数: 0

Non-orthogonal digital–analog hybrid optical transmission using dispersion-induced power fading in multi-distance optical access network 多距离光接入网中色散诱发功率衰落的非正交数模混合光传输

IF 2.7 3区计算机科学

Optical Fiber Technology Pub Date : 2026-05-01 Epub Date: 2025-12-19 DOI: 10.1016/j.yofte.2025.104527

Jinwoo Park, Joungmoon Lee, Sang-Kook Han

{"title":"Non-orthogonal digital–analog hybrid optical transmission using dispersion-induced power fading in multi-distance optical access network","authors":"Jinwoo Park, Joungmoon Lee, Sang-Kook Han","doi":"10.1016/j.yofte.2025.104527","DOIUrl":"10.1016/j.yofte.2025.104527","url":null,"abstract":"<div><div>This paper proposes an optical transmission technique using a non-orthogonal digital–analog hybrid (NODAH) signal. The hybrid system is designed to take advantage of the mature digital transmission infrastructure and the inherently high spectral efficiency of analog transmission. The NODAH signal was modulated using an in-phase-quadrature modulator with an appropriate bias and driving voltage and transmitted through an optical fiber with chromatic dispersion characteristics. After the photodetection process, dispersion-induced power fading results in the mitigation of the analog-to-digital and digital-to-analog interference significantly. The proposed technique was analyzed mathematically based on optical transmission theory, and its performance in broadband communication was verified with experiments. Proof-of-concept experiments conducted using 25 and 50 km-long commercial optical fibers to transmit and receive the hybrid signals confirm that the proposed technique satisfies the error vector magnitude requirements of relevant communication standards under the experimental condition.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"98 ","pages":"Article 104527"},"PeriodicalIF":2.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145771924","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

Experimental study on a new method for 3D deformation measurement of underground structure using optic fiber sensors 利用光纤传感器测量地下结构三维变形新方法的实验研究

IF 2.7 3区计算机科学

Optical Fiber Technology Pub Date : 2026-03-01 Epub Date: 2025-12-02 DOI: 10.1016/j.yofte.2025.104435

Z.L. Cheng, M.C. Chen, M.R. Tao, Z.T. Rong

引用次数: 0

Switchable mode-locked fiber laser with multi-state operations based on Ti3C2TX saturable absorber 基于Ti3C2TX饱和吸收体的可切换多态锁模光纤激光器

IF 2.7 3区计算机科学

Optical Fiber Technology Pub Date : 2026-03-01 Epub Date: 2025-12-06 DOI: 10.1016/j.yofte.2025.104516

Wenlei Li , Huiling Li , Guangyuan Duan , Guangwei Chen

引用次数: 0

A method to detect the capillary wall thickness 一种毛细管壁厚检测方法

IF 2.7 3区计算机科学

Optical Fiber Technology Pub Date : 2026-03-01 Epub Date: 2025-12-07 DOI: 10.1016/j.yofte.2025.104521

Zhenbang Yang , Shaoguang Yang , Yu Qin

引用次数: 0

A fiber–dielectric microsphere sensor for vibration metrology: fabrication via dual-wavelength in-fiber locate-and-cure and metrological performance evaluation 一种用于振动测量的光纤-介电微球传感器：双波长光纤内定位固化制造及计量性能评价

IF 2.7 3区计算机科学

Optical Fiber Technology Pub Date : 2026-03-01 Epub Date: 2025-12-10 DOI: 10.1016/j.yofte.2025.104522

Haonan Sun , Yaojie Li , Cun Zhao , Taiji Dong , Chunlei Jiang , Xu Liu , Zhaotong Song , Dongao Li , Chao Feng , Chunlian Kang , Hang Pan

{"title":"A fiber–dielectric microsphere sensor for vibration metrology: fabrication via dual-wavelength in-fiber locate-and-cure and metrological performance evaluation","authors":"Haonan Sun , Yaojie Li , Cun Zhao , Taiji Dong , Chunlei Jiang , Xu Liu , Zhaotong Song , Dongao Li , Chao Feng , Chunlian Kang , Hang Pan","doi":"10.1016/j.yofte.2025.104522","DOIUrl":"10.1016/j.yofte.2025.104522","url":null,"abstract":"<div><div>We present a dual-wavelength, in-fiber locate-and-cure process that bonds a dielectric microsphere coaxially to a single-mode fiber tip and yields a robust fiber-tip micro-optic. A 980 nm core-guided field provides self-alignment of the microsphere at the taper apex, while a 405 nm core-guided beam pre-gels and fully cures a low-fluorescence UV adhesive (NOA61), suppressing backflow, preserving taper geometry, and improving reproducibility. To our knowledge, this is the first process that integrates core-guided optical trapping with in-fiber UV curing for coaxial microsphere–fiber bonding, without free-space alignment, enabling rapid fabrication of compact, high-performance sensing heads. Finite-element simulations predict ∼12.5 % higher fundamental-mode overlap/coupling for a 0.5 µm sphere–taper design compared with a 2.5 µm design, Here, “overlap” is computed as the normalized mode-overlap integral evaluated at the fiber-core cross-section at 1550 nm using a full-vector FEM; see Sec. 2.3 for the setup. together with a 67 % reduction in efficiency degradation over 0–45° angular misalignment. Experiments confirm optical performance gains: power-meter measurements indicate ∼40 % higher coupling efficiency, and OTDR shows the return loss increased by 2.3 dB (back-reflection reduced). As an application example, under 0.1 nm pk–pk sinusoidal and triangular excitation at 5 and 10 Hz, the fabricated sensor exhibits a 110 % increase in fundamental response; time- and frequency-domain SNRs improve by 8.3 dB and 9.7 dB, respectively; and the coefficient of variation of the fundamental amplitude decreases from 6.5 % to 2.1 %. The approach eliminates free-space alignment, defines a clear power–time process window for capillary dispensing and core-coupled curing, and delivers reproducible fiber-tip micro-optics.</div></div>","PeriodicalId":19663,"journal":{"name":"Optical Fiber Technology","volume":"97 ","pages":"Article 104522"},"PeriodicalIF":2.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145749384","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