Optical Fiber Technology最新文献_第6页

Single frequency fiber laser with sub-kHz linewidth based on ultra narrowband nonlinear filtering using fiber loop mirror and silver indium phosphorus sulfide 基于光纤环镜和硫化银铟磷超窄带非线性滤波的亚khz线宽单频光纤激光器

IF 2.7 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology

Pub Date : 2025-12-01 DOI: 10.1016/j.yofte.2025.104507

Ruidong Lv , Kun Qu , Ming Xu , Jiahe Sun , Li Sun , Qian Wang , Jiang Wang , Sicong Liu

This article demonstrates a linear cavity single frequency fiber laser (SFFL) implemented using a transient grating composed of AgInP₂S₆ and a fiber loop mirror as a filter. We first studied the optical properties such as transient absorption and nonlinear absorption of AgInP₂S₆ nanomaterials. Based on this, a SFFL with a center wavelength of 1550.12 nm and a linewidth of 0.92 kHz has been achieved. The signal-to-noise ratio is 64 dB and the maximum output power reaches 12.6 mW. Further research is conducted on the stability of the output single frequency laser within 6 h, with wavelength and power fluctuations of less than 20 pm and 1.51 %, and the side mode suppression ratio of the self-heterodyne beat signal and spectral linewidth fluctuations being less than 0.8 dB and 4.2 %, respectively. It is worth noting that we use AgInP₂S₆ materials combined with fiber loop mirrors to form fiber filters with ultra narrow bandwidth. Compared with ultra short cavity distributed feedback fiber lasers and distributed Bragg reflector fiber lasers, it has a longer cavity length, which is very desirable for achieving laser linewidth compression and output power improvement. Therefore, this study provides valuable strategies and guidance for the development of nonlinear optical materials based on AgInP₂S₆ and opens up new path for advanced photonic devices for SFFLs.

本文介绍了一种利用AgInP2S6组成的瞬态光栅和光纤环镜作为滤波器实现的线性腔单频光纤激光器（SFFL）。我们首先研究了AgInP2S6纳米材料的瞬态吸收和非线性吸收等光学性质。在此基础上，实现了中心波长为1550.12 nm、线宽为0.92 kHz的SFFL。信噪比为64 dB，最大输出功率为12.6 mW。进一步研究了输出单频激光在6 h内的稳定性，波长和功率波动小于20 pm和1.51%，自外差拍频信号的侧模抑制比和谱线宽度波动分别小于0.8 dB和4.2%。值得注意的是，我们使用AgInP2S6材料与光纤环路镜相结合，形成了超窄带宽的光纤滤波器。与超短腔分布反馈光纤激光器和分布布拉格反射光纤激光器相比，它具有更长的腔长，这对于实现激光线宽压缩和输出功率的提高是非常理想的。因此，本研究为基于AgInP2S6的非线性光学材料的发展提供了有价值的策略和指导，为先进的sffl光子器件开辟了新的途径。

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引用次数: 0

Multimode LD-pumped bismuth-doped fiber lasers and amplifiers (Invited) 多模led泵浦掺铋光纤激光器和放大器（特邀）

IF 2.7 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology

Pub Date : 2025-11-30 DOI: 10.1016/j.yofte.2025.104503

S.V. Alyshev , A.M. Khegai , A.A. Umnikov , S.V. Firstov

This paper reviews the development of the continuous wave (CW) lasers and optical amplifiers operating in a wavelength range of 1300–1700 nm based on bismuth-doped fibers pumped by high-power multimode semiconductor laser diodes (LDs). Here, we consider general principles and peculiarities of operation of such gain media in terms of energy-level configuration of bismuth active centers with optical transitions in near-IR and the resulting spectroscopic properties. This review is focused primarily on the latest results regarding the state-of-the-art advances in the power scalability of the cladding-pumped Bi-doped fiber lasers and amplifiers.

本文综述了基于高功率多模半导体激光二极管泵浦掺铋光纤的1300 ~ 1700 nm连续波激光器和光放大器的研究进展。在这里，我们考虑了这种增益介质的一般原理和操作的特点，在近红外具有光学跃迁的铋活性中心的能级配置和由此产生的光谱性质。本文主要综述了包层泵浦双掺光纤激光器和放大器在功率可扩展性方面的最新进展。

引用次数: 0

Temperature self-compensated double-hole optical fiber surface plasmon resonance sensor for detection of chiral (R,S)-anatabine 温度自补偿双孔光纤表面等离子体共振传感器检测手性（R，S）-阿那他滨

IF 2.7 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology

Pub Date : 2025-11-28 DOI: 10.1016/j.yofte.2025.104498

Nan Chen , Wenbin Zhang , Yangyang Li , YiYang Chen , Yi Ma , Yuanxiang Ji , Shijun Li , Wenyu Yan , Feng Zhang , Yu Yang , Lingxin Kong

Anatabine, as an important alkaloid component in tobacco, has potential application value in flavor regulation and the development of characteristic tobacco products. However, traditional detection methods have limitations such as complex sample processing and weak anti-interference ability. In this regard, this study proposes a chiral molecular enantiomeric selectivity sensor based on double-hole optical fiber (DOF). Multi-parameter detection is achieved by integrating surface plasmon resonance (SPR) and Mach-Zehnder interferometer (MZI) technologies. It innovatively adopts a cascade structure of single-mode fiber (SMF)- multimode fiber (MMF)-DOF. Nano-metal films are deposited in the dual-hole fiber region to excite the SPR effect, and the UiO-66-NH₂ metal–organic framework (MOF) is coated as the chiral recognition carrier. Au/R-Tar@UiO-66-NH₂ and Au/TiO₂/S-Tar@UiO-66-NH₂ composite films were respectively modified on both sides of the sensor to stimulate surface plasmon resonance 1 (SPR-1) and 2 (SPR-2) as sensing channels 1 and 2. This design can achieve specific recognition of liquid (R)-(+)-anatabine and (S)-(−)-anatabine. Moreover, single-mode optical fibers and dual-hole optical fibers can be combined to form MZI, which serves as the sensing channel 3 to eliminate temperature interference. The detection sensitivities of (R)-(+)-anatabine and (S)-(−)-anatabine are 51.743 pm/nM and 49.512 pm/nM respectively, and the minimum detection limit is 0.386 nM. This design provides an innovative detection solution for chiral drug enantiomer analysis in complex environments.

安那他滨作为烟草中重要的生物碱成分，在调节风味和开发特色烟草制品方面具有潜在的应用价值。然而，传统的检测方法存在样品处理复杂、抗干扰能力弱等局限性。为此，本研究提出了一种基于双孔光纤（DOF）的手性分子对映体选择性传感器。利用表面等离子体共振（SPR）和马赫-曾德干涉仪（MZI）技术实现了多参数检测。它创新性地采用了单模光纤(SMF)-多模光纤(MMF)- dof的级联结构。在双孔光纤区沉积纳米金属膜激发SPR效应，并包覆UiO-66-NH2金属有机骨架（MOF）作为手性识别载体。在传感器两侧分别修饰Au/R-Tar@UiO-66-NH2和Au/TiO2/S-Tar@UiO-66-NH2复合膜，激发表面等离子体共振1 （SPR-1）和2 （SPR-2）作为传感通道1和2。本设计可以实现对液体(R)-(+)-阿那他滨和(S)-(−)-阿那他滨的特异性识别。单模光纤和双孔光纤可以组合形成MZI，作为传感通道3，消除温度干扰。(R)-(+)-阿那他滨和(S)-(−)-阿那他滨的检测灵敏度分别为51.743 pm/nM和49.512 pm/nM，最小检出限为0.386 nM。该设计为复杂环境下的手性药物对映体分析提供了一种创新的检测解决方案。

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引用次数: 0

Design of weakly coupled few-mode hybrid nested-single tube anti-resonant fiber with low loss 弱耦合低损耗少模杂化嵌套单管抗谐振光纤的设计

IF 2.7 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology

Pub Date : 2025-11-28 DOI: 10.1016/j.yofte.2025.104495

Mengjuan Qin , Youchao Jiang , Yuzhen Zhao , Yongfu Su , Shiying Xiao , Wenhua Ren , Guobin Ren , Fengping Yan

In this work, we design a hybrid nested-single tube anti-resonant fiber (HNST-ARF) with few-mode transmission characteristics, aiming at solving the problems of high higher-order mode loss and significant mode crosstalk in conventional hollow-core fibers. After optimization of the structural parameters, the low-loss transmission of LP₀₁, LP₁₁ and LP₂₁ modes can be supported in the range of 1–1.3 μm, with the LP01 confinement loss as low as 4.46 × 10⁻⁷ dB/m, and the confinement losses of the higher-order modes are all lower than 0.001 dB/m. It supports low-loss transmission of LP₀₁ and LP₁₁ modes in the range of 1.3–1.37 μm. The effective refractive index difference between modes is always greater than 1 × 10⁻⁴, which satisfies the weak coupling condition between modes and can effectively suppress inter-mode crosstalk. Further comparative analysis shows that the synergistic effect of gap single-layer tube and symmetric double inner tube design can effectively suppress the cladding leakage and gap mode coupling. In addition, HNST-ARF with a bending radius of 10 cm or larger have less impact on the transmission performance of HNST-ARF with fewer modes, and the mode capacity can be dynamically regulated by wavelength selection. This study provides theoretical support and design examples for the application of hollow-core fibers in mode division multiplexing (MDM) systems and high-capacity optical communications.

本文设计了一种具有少模传输特性的混合嵌套单管抗谐振光纤（HNST-ARF），旨在解决传统空心芯光纤高阶模式损耗大和模式串扰严重的问题。优化结构参数后，LP01、LP11和LP21在1 ~ 1.3 μm范围内均可实现低损耗传输，其中LP01的约束损耗低至4.46 × 10−7 dB/m，高阶模的约束损耗均低于0.001 dB/m。支持1.3 ~ 1.37 μm范围内LP01和LP11模式的低损耗传输。模间有效折射率差总是大于1 × 10−4，满足模间弱耦合条件，能有效抑制模间串扰。进一步的对比分析表明，间隙单层管和对称双内管设计的协同效应可以有效抑制包层泄漏和间隙模耦合。另外，当HNST-ARF的弯曲半径为10 cm或更大时，对模式较少的HNST-ARF的传输性能影响较小，并且模式容量可以通过波长选择进行动态调节。本研究为空芯光纤在模分复用（MDM）系统和大容量光通信中的应用提供理论支持和设计实例。

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引用次数: 0

Width- and amplitude-tunable double-scale pulse in a low-repetition-rate mode-locked fiber laser 低重复率锁模光纤激光器中宽度和幅度可调双尺度脉冲

IF 2.7 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology

Pub Date : 2025-11-27 DOI: 10.1016/j.yofte.2025.104499

Ying Qin , Zhehai Zhou , Guoqing Hu , Guangwei Chen , Li Chen , Yue Zhao , Jibo Han , Tengfei Wu

The generation and evolution of double-scale pulse from a single low-repetition-rate fiber laser cavity are theoretically and experimentally investigated. A 4.5-MHz-repetition-rate mode-locked laser cavity is constructed by introducing sufficient long fiber and nonlinear polarization evolution. By finely adjusting the intracavity state of polarization and pump parameters, noise-like square pulses are demonstrated in the near-zero dispersion regime. Besides, the individual control of amplitude and pulsewidth of noise-like square pulses is obtained by configuring bidirectional pumps. These results provide valuable theoretical and experimental insights for the design, construction, and control of low-repetition-rate, noise-like square pulses fiber lasers.

从理论上和实验上研究了低重复率光纤激光腔双尺度脉冲的产生和演化。通过引入足够长的光纤和非线性偏振演化，构建了一个4.5 mhz重复频率的锁模激光腔。通过对腔内偏振态和泵浦参数的精细调整，可以在近零色散区产生类噪声的方形脉冲。此外，通过配置双向泵，实现了对类噪声方形脉冲的幅值和脉宽的单独控制。这些结果为低重复率、类噪声方形脉冲光纤激光器的设计、构建和控制提供了有价值的理论和实验见解。

引用次数: 0

FPGA implementation of CNN for modulation format identification FPGA实现的CNN调制格式识别

IF 2.7 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology

Pub Date : 2025-11-25 DOI: 10.1016/j.yofte.2025.104494

Haiwen Li , Ye Lu , Qinghui Zeng , Yan Wen , Yibu Kong , Zhaoyun Li

modulation format identification (MFI) has become an increasingly attractive avenue for research. Especially as the need for optical layer performance monitoring increases. Deep learning methods provide an effective recognition method with high accuracy. At the same time, the need to implement deep learning models on embedded devices is growing. Field-Programmable Gate Array (FPGA) are the best choice due to their parallelism, flexibility, and energy efficiency. In this paper, an FPGA-based CNN network design scheme for modulation format identification is proposed. Our proposed design explores and provides a suitable solution for better performance while maintaining accuracy. We generated modulation format datasets for MFI and Optical Signal-to-Noise Ratio (OSNR) in simulation environment, training and fine-tuning the network parameters base on this dataset, and then changing some suitable components in the CNN networks to fit for the deployment on FPGA. Our experiments in the Xilinx XC7A200 development kit show that despite model compression, the accuracy of our implementation is comparable to the original model running on the CPU and GPU. In terms of speed, the FPGA implementation of the XC7A200 kit is inferior to the high-end GPU RTX 2080 Ti but superior to the Intel® Core™ i7-7700HQ CPU. In terms of power consumption, the FPGA implementation is significantly lower than the Intel® Core™ i7-7700HQ and the RTX 2080 Ti, being approximately about 13–14 times lower than them. In terms of energy efficiency, FPGA are completely superior to GPU, being 5–6 times more efficient than the RTX 2080 Ti and 29 times more efficient than the Intel® Core™ i7-7700HQ.

调制格式识别（MFI）已成为一个越来越有吸引力的研究方向。特别是随着对光层性能监测需求的增加。深度学习方法提供了一种有效的、准确率高的识别方法。与此同时，在嵌入式设备上实现深度学习模型的需求正在增长。现场可编程门阵列（FPGA）由于其并行性、灵活性和能效而成为最佳选择。本文提出了一种基于fpga的调制格式识别CNN网络设计方案。我们提出的设计探索并提供了合适的解决方案，在保持准确性的同时获得更好的性能。我们在仿真环境下生成了MFI和光信噪比（OSNR）调制格式数据集，在此基础上对网络参数进行训练和微调，然后改变CNN网络中合适的组件以适应在FPGA上的部署。我们在Xilinx XC7A200开发套件中的实验表明，尽管模型压缩，我们实现的准确性与在CPU和GPU上运行的原始模型相当。在速度方面，XC7A200套件的FPGA实现不如高端GPU RTX 2080 Ti，但优于Intel®Core™i7-7700HQ CPU。在功耗方面，FPGA实现明显低于Intel®Core™i7-7700HQ和RTX 2080 Ti，大约比它们低13-14倍。在能效方面，FPGA完全优于GPU，比RTX 2080 Ti效率高5-6倍，比Intel®Core™i7-7700HQ效率高29倍。

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引用次数: 0

A passive bidirectional audio transmission system with integrated sensing, energy supply, and communication 一种集成传感、能量供应和通信的无源双向音频传输系统

IF 2.7 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology

Pub Date : 2025-11-25 DOI: 10.1016/j.yofte.2025.104500

Cong Liu , Xuan Chen , Chenggang Guan , Sheng Hu , Weiqi Wang , Yifan Xiao , Linfeng Zhan , Yifeng Chen , Chaoqiang Dong , Xuelong Fan , Qiang Wan , Chen Xu

This paper proposes a passive bidirectional audio transmission system that enables the simultaneous transmission of energy, sensing, and communication. The system achieves passive bidirectional audio transmission over a 10 km optical fiber link integrated with fiber Bragg gratings. In the uplink, a phase-sensitive optical time-domain reflectometry (Φ-OTDR) technique incorporating integrated ultra-weak fiber Bragg gratings (UWFBGs) is employed to realize quasi-distributed acoustic sensing and audio reconstruction across the entire fiber link, achieving a signal-to-noise ratio (SNR) of 52.22 dB and a frequency response ranging from 500 Hz to 3 kHz. For the downlink, a self-developed InGaAs/InP photovoltaic power converter (PPC) is utilized to simultaneously supply power and transmit audio signals, eliminating the need for any external power source. Under low-light conditions, the system still maintains an audio SNR of 51.8 dB and an energy conversion efficiency of 13.2 %, thereby enabling a fully passive terminal. Experiments show that the system still possesses excellent performance in long-distance, unpowered, and low-light environments, providing an effective communication solution for special scenarios such as high-voltage and mining operations. This study presents a novel terminal-passive optical fiber platform that integrates sensing, power supply, and communication, offering a new solution for safe and reliable optical communication and perception in extreme environments.

提出了一种能同时传输能量、传感和通信的无源双向音频传输系统。该系统通过光纤布拉格光栅集成的10公里光纤链路实现无源双向音频传输。在上行链路中，采用集成超弱光纤布拉格光栅（uwfbg）的相敏光时域反射技术（Φ-OTDR）实现了整个光纤链路的准分布式声传感和音频重建，信噪比（SNR）达到52.22 dB，频率响应范围为500 Hz至3 kHz。下行链路采用自主研发的InGaAs/InP光伏电源转换器（PPC）同时供电和传输音频信号，无需任何外部电源。在弱光条件下，系统仍然保持51.8 dB的音频信噪比和13.2%的能量转换效率，从而实现了完全无源终端。实验表明，该系统在远距离、无电、弱光环境下仍然具有优异的性能，为高压、采矿等特殊场景提供了有效的通信解决方案。本研究提出一种集传感、供电、通信于一体的新型终端无源光纤平台，为极端环境下安全可靠的光通信与感知提供了新的解决方案。

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引用次数: 0

Multi-Physical field coupling effects on reflective Fiber-Optic voltage Sensor: Modeling and quantitative error mechanism analysis 反射式光纤电压传感器的多物理场耦合效应：建模与定量误差机理分析

IF 2.7 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology

Pub Date : 2025-11-24 DOI: 10.1016/j.yofte.2025.104493

Hanrui Yang, Jiaxing Tian, Shengxi Jiao, Shibo Xu, Wentao Du

Reflective fiber-optic voltage sensor (RFOVS) based on the inverse piezoelectric effect provide intrinsic insulation and wideband response, making them well-suited for high-voltage measurements in harsh environments. However, their accuracy is considerably compromised by environmental disturbances. This study reveals that temperature fluctuations cause bidirectional, cumulative output drift through thermal expansion and piezoelectric coefficient variations, while mechanical vibration introduces sinusoidal fluctuations proportional to acceleration amplitude and synchronized with stress frequency. A quantitative error model incorporating temperature ramp rate and stress amplitude is established and validated, achieving prediction errors below 5% under extreme conditions and under 2% in typical scenarios. These results advance the understanding of multi-physics coupling mechanisms and offer a practical compensation framework to enhance RFOVS reliability in demanding applications such as railway traction systems and smart grid substations.

基于逆压电效应的反射式光纤电压传感器（RFOVS）具有固有的绝缘性和宽带响应能力，非常适合恶劣环境下的高压测量。然而，它们的准确性受到环境干扰的极大影响。研究表明，温度波动通过热膨胀和压电系数变化导致双向累积输出漂移，而机械振动则引入与加速度幅值成正比的正弦波动，并与应力频率同步。建立并验证了结合温度斜坡率和应力幅值的定量误差模型，在极端条件下预测误差小于5%，在典型情况下预测误差小于2%。这些结果促进了对多物理场耦合机制的理解，并提供了一个实用的补偿框架，以提高RFOVS在铁路牵引系统和智能电网变电站等苛刻应用中的可靠性。

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引用次数: 0

Exploring ultrafast photo-thermal and photo-acoustic dynamics of material employing localized surface plasmon-mediated fiber optic sensor 利用局域表面等离子体介导的光纤传感器探索材料的超快光热和光声动力学

IF 2.7 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology

Pub Date : 2025-11-22 DOI: 10.1016/j.yofte.2025.104492

Rani Dutta, Tapanendu Kundu

This study explores ultrafast photothermal and photoacoustic dynamics of materials using an evanescent wave absorption-based U-bent optical fiber (U-Fb) sensor, functionalized with gold (Au) and silver (Ag) nanoparticles. Leveraging localized surface plasmon resonance (LSPR), the sensor enables rapid detection of refractive index (RI) changes due to non-radiative heat dissipation under optical excitation. The nanoparticle-functionalized probes were first calibrated under controlled temperature and RI conditions. In order to get the insight of the photothermal processes, pump–probe experiments were conducted using a 514 nm chopped continuous-wave (CW) laser and a 532 nm nanosecond pulsed laser as pump sources, while a 405 nm probe beam monitored LSPR responses under both resonant and off-resonant conditions. It was observed that when the excitation beam overlaps with the probe, nonradiative decay of LSPR absorption contributes to the thermal change of the surrounding medium. To further explore heat propagation dynamics, the distance between the fiber probe and the photothermal source was varied. This allowed for temporal analysis of RI changes and differentiation between thermal contributions from the immobilized nanoparticles and the absorbing material. The results revealed that, under chopped CW excitation, AgNP-functionalized probes exhibited higher sensing sensitivity than AuNP-functionalized probes, despite having approximately similar thermal response times. Since the AgNp LSPR is off resonant with pulse excitation and resonant with the probe beam, this configuration provides better sensitivity and the clarity in monitoring the time profile of the material thermal response than AuNp- functionalized probe. Notably, AgNP- functionalized probes also detect shock waves and acoustic signatures generating from the absorbing material under nanosecond pulse excitation, underscoring their potential in measuring the fast pressure dynamics. Overall, the U-Fb probe sensor offers a compact, tunable platform for real-time monitoring of ultrafast thermal and mechanical events, with applications in photothermal spectroscopy, thermal wave sensing, and advanced material diagnostics.

本研究利用金（Au）和银（Ag）纳米粒子功能化的基于倏逝波吸收的u型弯曲光纤（U-Fb）传感器，探索了材料的超快光热和光声动力学。利用局域表面等离子体共振（LSPR），该传感器能够快速检测由于光激发下非辐射散热引起的折射率（RI）变化。首先在受控温度和RI条件下对纳米颗粒功能化探针进行校准。为了深入了解光热过程，采用514 nm的斩切连续波（CW）激光器和532 nm纳秒脉冲激光器作为泵浦源进行了泵浦-探针实验，同时采用405 nm的探针束监测了谐振和非谐振条件下LSPR的响应。当激发束与探针重叠时，LSPR吸收的非辐射衰减导致了周围介质的热变化。为了进一步研究热传播动力学，改变光纤探针与光热源之间的距离。这允许对RI变化进行时间分析，并区分固定纳米颗粒和吸收材料的热贡献。结果表明，在短切连续波激发下，agnp功能化探针比aunp功能化探针表现出更高的传感灵敏度，尽管它们的热响应时间大致相似。由于AgNp LSPR与脉冲激励和探针光束共振，这种配置在监测材料热响应的时间分布方面提供了比AuNp功能化探针更好的灵敏度和清晰度。值得注意的是，AgNP功能化探针还可以检测吸收材料在纳秒脉冲激励下产生的冲击波和声学特征，强调了它们在测量快速压力动力学方面的潜力。总体而言，U-Fb探头传感器提供了一个紧凑、可调的平台，用于实时监测超快热和机械事件，应用于光热光谱、热波传感和先进材料诊断。

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引用次数: 0

Recent developments in the understanding and passive mitigation of transverse mode instability 横模不稳定性的理解和被动缓解的最新进展

IF 2.7 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology

Pub Date : 2025-11-21 DOI: 10.1016/j.yofte.2025.104496

César Jauregui , Yiming Tu , Sobhy Kholaif , Friedrich Möller , Gonzalo Palma-Vega , Nicoletta Haarlammert , Till Walbaum , Thomas Schreiber , Jens Limpert

In this article we look at the newest developments in the understanding and mitigation of TMI in single-core fibers. This includes recent quantitative measurements that reveal the dependence of the TMI threshold on the modal content of the seed, systematic measurements on the dependence of the TMI threshold on the fiber core size, as well as the study of TMI in PM fibers including a novel passive mitigation strategy and the static modal energy transfer recently observed in these fibers.

在本文中，我们将介绍对单芯光纤中TMI的理解和缓解方面的最新进展。这包括最近的定量测量，揭示了TMI阈值对种子模态含量的依赖性，系统测量了TMI阈值对纤维芯尺寸的依赖性，以及对PM纤维中的TMI的研究，包括一种新的被动缓解策略和最近在这些纤维中观察到的静态模态能量传递。

引用次数: 0