Optics Communications最新文献_第3页

Characterization of Er–Ba nanoparticle suspension-doped aluminosilicate optical fibers for 1550 nm amplification

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-01-24 DOI: 10.1016/j.optcom.2025.131556

J. Campbell , M.A. Cahoon , M. Gachich , B. Meehan , M. Norlander , A.R. Pietros , M. Jercinovic , T.W. Hawkins , J. Ballato , P.D. Dragic

{"title":"Characterization of Er–Ba nanoparticle suspension-doped aluminosilicate optical fibers for 1550 nm amplification","authors":"J. Campbell , M.A. Cahoon , M. Gachich , B. Meehan , M. Norlander , A.R. Pietros , M. Jercinovic , T.W. Hawkins , J. Ballato , P.D. Dragic","doi":"10.1016/j.optcom.2025.131556","DOIUrl":"10.1016/j.optcom.2025.131556","url":null,"abstract":"<div><div>In recent years, the scalability of erbium-doped fiber (EDF) towards high power (kW) lasing in amplifiers has been constrained, in part, by modern methods which insufficiently improve the solubility of Er<sup>3+</sup> ions in silicate glass. Without adequately declustering the ions, they are likely to interact non-radiatively with increasing concentration, resulting in lower gain and output power. Finding a new means for improving the solubility of erbium ions in silicate fiber would create opportunities to break decades-old benchmarks in fiber amplifiers and lasers. This work compares six EDFs fabricated via a novel doping method utilizing precursors that contain nanoparticles comprising Ba:Er fluorides. These fluorides oxidize during fiber fabrication, rendering a baria-rich environment in the vicinity of the erbium ions-. Through a combination of both the nanoparticles and alumina contained in the precursor, average erbia densities as high as 2 wt.% are realized. Heavily doped fibers with quantum efficiencies up to 0.76 are demonstrated. Additionally, lasing efficiencies that match and even exceed commercial EDFs with similar or lower ion densities are presented. Whether the baria affects the solubility of the erbium ions and our current understanding of the fiber due to the doping process are discussed.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"579 ","pages":"Article 131556"},"PeriodicalIF":2.2,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143222212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Blue LD pumped passively Q-switched Pr:YLF lasers generation using 2D germanene nanosheets

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-01-23 DOI: 10.1016/j.optcom.2025.131547

Junjie Yuan, Houwen Yang, Guowei Liu, Chuanrui Zhao, Zhengping Wang, Wenyong Cheng

{"title":"Blue LD pumped passively Q-switched Pr:YLF lasers generation using 2D germanene nanosheets","authors":"Junjie Yuan, Houwen Yang, Guowei Liu, Chuanrui Zhao, Zhengping Wang, Wenyong Cheng","doi":"10.1016/j.optcom.2025.131547","DOIUrl":"10.1016/j.optcom.2025.131547","url":null,"abstract":"<div><div>Germanene, a two-dimensional analogue of graphene, possesses remarkable characteristics such as high carrier mobility and enhanced stability, which have catalyzed extensive research endeavors in recent years. However, the nonlinear optical properties of germanene, particularly within the visible spectrum, have been scarcely explored in existing research. In this work, germanene nanosheets were prepared via a liquid-phase exfoliation method, followed by characterization of the nonlinear optical properties utilizing dual-arm detection technology. The results indicate that the saturation intensity and modulation depth at a wavelength of 640 nm are approximately 1.39 MW/cm<sup>2</sup> and 12.83%, respectively. Leveraging these exceptional saturable absorption properties, we implemented germanene nanosheets as a saturable absorber in a Pr:YLF solid-state laser, achieving passively Q-switched signal output with a pulse width of 194.14 ns and a peak power of 1.89 W. The results substantiate the potential of germanene as a viable saturable absorber for applications in the visible light range.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"579 ","pages":"Article 131547"},"PeriodicalIF":2.2,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143159017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Applications of Type I diffracted photons in astronomical imaging and the insensitivity of QCE image sensor to atmospheric turbulence

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-01-23 DOI: 10.1016/j.optcom.2025.131557

E. Pavel

引用次数: 0

Mitigation of interference fading in coherent Φ-OTDR utilizing positive and negative frequency bands with intradyne detection

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-01-23 DOI: 10.1016/j.optcom.2025.131552

Yafeng Cheng , Hanyong Wang , Changpeng Ming , Lei Qian , Desheng Li , Hongyi Gan , Tianye Huang , Wu Liu , Ming Luo , Lei Dong , Xiang Li

{"title":"Mitigation of interference fading in coherent Φ-OTDR utilizing positive and negative frequency bands with intradyne detection","authors":"Yafeng Cheng , Hanyong Wang , Changpeng Ming , Lei Qian , Desheng Li , Hongyi Gan , Tianye Huang , Wu Liu , Ming Luo , Lei Dong , Xiang Li","doi":"10.1016/j.optcom.2025.131552","DOIUrl":"10.1016/j.optcom.2025.131552","url":null,"abstract":"<div><div>The performance of the phase-sensitive optical time-domain reflectometry (Φ-OTDR) system can be significantly enhanced by detecting larger bandwidth of Rayleigh backscattered signal. However, the detection bandwidth is often constrained by the limitations of electronic components when only single-sideband probe signal is used. To address these challenges, we proposed to use intradyne detection that combines positive and negative frequency bands to eliminate the interference fading and improve the signal-to-noise ratio (SNR) of the recovered disturbance signal. In this study, we employ a Mach-Zehnder modulator (MZM) to generate double-sideband probe signal and intradyne detection to double the available bandwidth of the Φ-OTDR system. By combining the positive and negative frequency bands, we experimentally demonstrate that the interference fading can be effectively mitigated at a sampling rate of 250 MSa/s after intradyne detection. The strain sensitivities of 47.5 <span><math><mrow><mi>p</mi><mi>ε</mi><mo>/</mo><msqrt><mrow><mi>H</mi><mi>z</mi></mrow></msqrt></mrow></math></span> is achieved in 5 km fiber length with 2.5 m spatial resolution.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"579 ","pages":"Article 131552"},"PeriodicalIF":2.2,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143159342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interferometric techniques for thickness measurement of 2D structures

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-01-23 DOI: 10.1016/j.optcom.2025.131555

Athira A, Alok Sharan

引用次数: 0

Realization of multifunctional optical devices based on valley topological photonic crystals with triangular lattice

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-01-22 DOI: 10.1016/j.optcom.2025.131549

Yong-Feng Gao , Ming-Yang Sun , Tian-Hao Yao , Sheng-Yi Li , Shu-Yang Zhou , Ming Yang , Qi-Chao Hou

{"title":"Realization of multifunctional optical devices based on valley topological photonic crystals with triangular lattice","authors":"Yong-Feng Gao , Ming-Yang Sun , Tian-Hao Yao , Sheng-Yi Li , Shu-Yang Zhou , Ming Yang , Qi-Chao Hou","doi":"10.1016/j.optcom.2025.131549","DOIUrl":"10.1016/j.optcom.2025.131549","url":null,"abstract":"<div><div>The emergence of valley Hall topological photonic crystals (VPCs) has driven advancements in the field of optical applications such as optical communication and optical computing. In this work, we propose valley photonic crystals with triangular lattice composed of silicon rods to achieve topological edge states (TESs) and topological corner states (TCSs), and investigate the influence of two different domain interfaces of bearded-shaped and zigzag-shaped between two VPCs with opposite valley Chern numbers on TESs and TCSs. TESs and TCSs obtained from different interfaces have different frequencies and the robustness of them to defects is demonstrated. A rhomboidal hybrid structure with various valley interfaces is designed to achieve the functions of frequency division, beam splitting and three-channel photonic router based on TESs. In addition, a rhomboidal hybrid VPC waveguide-cavity coupling system is proposed, which comprises a Y-shaped air waveguide and two triangular box-shaped cavities with different domain interfaces. Both ‘AND gate’ and ‘OR gate’ logic gate functionalities can be achieved in the same structure corresponding to different frequency ranges by the coupling of air waveguides and box-shaped cavities utilizing the strong localization of corner states. This work provides a new approach for integrated devices, particularly in the fields of integrated circuits and integrated photonic devices, based on triangular photonic crystals.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"579 ","pages":"Article 131549"},"PeriodicalIF":2.2,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143159932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Filamentation characteristics in the transition from cylindrical vector to circularly polarized vortex femtosecond pulses

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-01-22 DOI: 10.1016/j.optcom.2025.131551

Haoran Wang , Dongwei Li , Junhui Yu , Yangjian Cai , Zuoqiang Hao , Lanzhi Zhang

{"title":"Filamentation characteristics in the transition from cylindrical vector to circularly polarized vortex femtosecond pulses","authors":"Haoran Wang , Dongwei Li , Junhui Yu , Yangjian Cai , Zuoqiang Hao , Lanzhi Zhang","doi":"10.1016/j.optcom.2025.131551","DOIUrl":"10.1016/j.optcom.2025.131551","url":null,"abstract":"<div><div>This study investigates the influence of polarization on the filamentation characteristics of femtosecond vector and vortex laser pulses. By using a quarter-wave plate (QWP) and a <em>q</em>-plate to vary the polarization distribution of femtosecond laser beam, we transform the beam from a cylindrical vector to a circularly polarized vortex beam. This transition enables precise control over key parameters, including the on-axis maximum intensity and spectral broadening of the generated supercontinuum. As the QWP angle increases from 0° to 45°, we observe a decrease in both the maximum filamentation intensity and spectral broadening. These parameters exhibit periodic variations as the QWP angle is further increased beyond 45°. Furthermore, circularly polarized vortex beams exhibit delayed filamentation onset, shorter filament length, and lower intensity compared to the linearly polarized beams. These findings highlight the critical role of polarization in modulating filamentation dynamics, offering the way for enhanced applications in air lasing, waveguides, and supercontinuum generation.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"579 ","pages":"Article 131551"},"PeriodicalIF":2.2,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143159016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Terahertz refractive index sensor based on triple-band absorption metasurface

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-01-22 DOI: 10.1016/j.optcom.2024.131449

Dongming Liu , Shujie Qiu , Yetong Wang , Jian Han , Qiang Liu , Tingting Lv

{"title":"Terahertz refractive index sensor based on triple-band absorption metasurface","authors":"Dongming Liu , Shujie Qiu , Yetong Wang , Jian Han , Qiang Liu , Tingting Lv","doi":"10.1016/j.optcom.2024.131449","DOIUrl":"10.1016/j.optcom.2024.131449","url":null,"abstract":"<div><div>High-performance metasurface refractive index sensors are extremely promising for biosensing, petroleum, agricultural production, and security detection fields. We theoretically propose a terahertz refractive index sensor based on absorption mechanism, which can achieve an excellent triple-band absorber and high-performance refractive index sensor. The proposed triple-band absorber may achieve 90.22%, 98.87%, and 99.91% at 0.93, 1.12 and 1.45 THz, respectively. Multi-band response promises multi-point matching of the resonant frequency between the sensor and the measured substance, thus enabling a high-accuracy terahertz sensor. The refractive index sensor has the maximum sensitivity (<em>S</em>), quality factor (<em>Q</em>), and figure of merit (<em>FOM</em>) of 420 GHz/RIU, 71.54, and 21.4 RIU<sup>−1</sup>, respectively. The triple-band absorber is achieved by the combination of electric and magnetic dipole responses and the sensing performance is determined by localized electromagnetic field distribution. The proposed terahertz refractive index metasurface sensor has a promising application prospect in biosensing and critical parameter measurement for oil and gas wells.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"579 ","pages":"Article 131449"},"PeriodicalIF":2.2,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143159013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A theoretical model of amplified spontaneous emission with different beveling angles for disk-shaped laser medium

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-01-21 DOI: 10.1016/j.optcom.2025.131550

Ranyou Zhao , Guangzhi Zhu , Xiangyu Ma , Biaoping Gu , Kozlov Aleksei , Hailin Wang , Xiao Zhu

引用次数: 0

Three-dimensional broadband 90° optical hybrid with low crosstalk and phase error processed via femtosecond laser direct writing

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-01-21 DOI: 10.1016/j.optcom.2025.131537

Xiaolin Li , Zhen Cao , Zhenqi Niu , Shengshui Wang , Huan Chen , Zhigang Jiang , Jianda Shao , Chaoyang Wei

引用次数: 0