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Fiber resonator using negative-curvature anti-resonant fiber with temperature stability

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Journal of Systems Engineering and Electronics 2022年第6期33卷 1286-1293页

作者： MA Honghao LI Hui FENG Changkun FENG Lishuang gao shoufei WANG Yingying WANG Pu School of Instrumentation and Optoelectronics Engineering Beihang UniversityBeijing 100191China Key Laboratory of Intelligent Sensing Materials and Chip Integration Technology of Zhejiang Province Hangzhou Innovation Institute of Beihang UniversityHangzhou 310053China Institute of Photonics Technology Jinan UniversityGuangzhou 510632China Institute of Laser Engineering Beijing University of TechnologyBeijing 100124China

The coupling efficiency of hollow-core fiber changes with temperature,which leads to the decrease of the finesse(F)of fiber resonator and limits the performance of the resonant fiber optic gyroscope(R-FOG)***-curvature antiresonant fiber(ARF)can maintain single-mode characteristics under the condition of large mode field diameter,achieve efficient and stable fiber coupling,and significantly improve the consistency of the F of the spatial coupling resonator in variable temperature environment.A new type of ARF with a mode field diameter(MFD)of 25μm is used to fabricate a fiber resonator with a length of 5.14 *** the range of 25℃-75℃,the average F is *** ARF resonator is used to construct an R-FOG system that shows long-term bias stability(3600 s)of3.1°/h at room temperature,4.6°/h at 75℃.To our knowledge,this is the best reported index of hollow-core fiber resonator and R-FOG system within the temperature variation range of 50℃ test.

关键词： negative-curvature anti-resonant fiber(ARF) fiber resonator temperature stability

Broadband all-fiber optical phase modulator based on photo-thermal effect in a gas-filled hollow-core fiber

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Opto-Electronic Advances 2023年第5期6卷 10-16页

作者： Shoulin Jiang Feifan Chen Yan Zhao shoufei gao Yingying Wang Hoi Lut Ho Wei Jin Photonics Research Center the Hong Kong Polytechnic University Shenzhen Research InstituteShenzhen 518057China Department of Electrical Engineering and Photonics Research Institute the Hong Kong Polytechnic UniversityHong Kong 999077China Institute of Photonics Technology Jinan UniversityGuangzhou 510632China

We report broadband all-fiber optical phase modulation based on the photo-thermal effect in a gas-filled hollow-core *** phase modulation dynamics are studied by multi-physics simulation.A phase modulator is fabricated using a 5.6-cm-long anti-resonant hollow-core fiber with pure acetylene *** has a half-wave optical power of 289 mW at 100 kHz and an average insertion loss 0.6 dB over a broad wavelength range from 1450 to 1650 *** rise and fall time constants are 3.5 and 3.7μs,respectively,2–3 orders of magnitude better than the previously reported microfiber-based photo-thermal phase *** gas-filled hollow-core waveguide configuration is promising for optical phase modulation from ultraviolet to mid-infrared which is challenging to achieve with solid optical fibers.

关键词： optical modulators photo-thermal effects hollow-core fibers

Design of large mode area all-solid anti-resonant fiber for high-power lasers

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High Power Laser Science and Engineering 2021年第2期9卷 161-167页

作者： Xin Zhang shoufei gao Yingying Wang Wei Ding Pu Wang National Center of Laser Technology Institute of Laser EngineeringBeijing University of TechnologyBeijing 100124China Institute of Photonics Technology Jinan UniversityGuangzhou 510632China

High-power fiber lasers have experienced a dramatic development over the last *** increasing the output power needs an upscaling of the fiber mode area,while maintaining a single-mode ***,we propose an all-solid anti-resonant fiber(ARF)structure,which ensures single-mode operation in broadband by resonantly coupling higherorder modes into the cladding.A series of fibers with core sizes ranging from 40 to 100µm are proposed exhibiting maximum mode area exceeding 5000µ*** simulations show this resonant coupling scheme provides a higher-order mode(mainly TE01,TM01,and HE21)suppression ratio of more than 20 dB,while keeping the fundamental mode loss lower than 1 dB/*** proposed structure also exhibits high tolerance for core index depression.

关键词： fiber design laser amplifiers modeling and optimization optical devices optical materials

Towards high-power mid-IR light source tunable from 3.8 to 4.5 µm by HBr-filled hollow-core silica fibres

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Light(Science & Applications) 2022年第1期11卷 101-113页

作者： Zhiyue Zhou Zefeng Wang Wei Huang Yulong Cui Hao Li Meng Wang Xiaoming Xi shoufei gao Yingying Wang College of Advanced Interdisciplinary Studies National University of Defense TechnologyChangsha 410073China State Key Laboratory of Pulsed Power Laser Technology Changsha 410073China Hunan Provincial Key Laboratory of High Energy Laser Technology Changsha 410073China Institute of Photonics Technology Jinan UniversityGuangzhou 511443China

Fibre lasers operating at the mid-IR have attracted enormous interest due to the plethora of applications in defence,security,medicine,and so ***,no continuous-wave(CW)fibre lasers beyond 4μm based on rare-earth-doped fibres have been demonstrated thus ***,we report efficient mid-IR laser emission from HBr-filled silica hollow-core fibres(HCFs)for the first *** pumping with a self-developed thulium-doped fibre amplifier seeded by several diode lasers over the range of 1940–1983 nm,narrow linewidth mid-IR emission from 3810 to 4496 nm has been achieved with a maximum laser power of about 500 mW and a slope efficiency of approximately 18%.To the best of our knowledge,the wavelength of 4496 nm with strong absorption in silica-based fibres is the longest emission wavelength from a CW fibre laser,and the span of 686 nm is also the largest tuning range achieved to date for any CW fibre *** further reducing the HCF transmission loss,increasing the pump power,improving the coupling efficiency,and optimizing the fibre length together with the pressure,the laser efficiency and output power are expected to increase *** work opens new opportunities for broadly tunable high-power mid-IR fibre lasers,especially beyond 4μm.

关键词： tunable power amplifier

Freestanding metal nanohole array for high-performance applications

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Photonics Research 2020年第11期8卷 1749-1756页

作者： Bobo Du Yinlan Ruan Dexing Yang Peipei Jia shoufei gao Yingying Wang Pu Wang Heike Ebendorff-Heidepriem MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions and Shaanxi Key Laboratory of Optical lnformationTechnologySchool of Physical Science and TechnologyNorthwestern Polytechnical UniversityXi'an 710072China Institute for Photonics and Advanced Sensing University of AdelaideAdelaideSA 5005Australia ARC Centre of Excellence for Nanoscale BioPhotonics University of AdelaideAdelaideSA 5005Australia Institute of Photonics Technology Jinan UniversityGuangzhou 510632China Institute of Laser Engineering Beijing University of TechnologyBeijing 100124China

Plasmonic devices using periodic metallic nanostructures have recently gained tremendous interest for color filters,sensing,surface enhanced spectroscopy,and enhanced photoluminescence,***,the performance of such plasmonic devices is severely hampered by the solid substrates supporting the metallic ***,a strategy for freestanding metallic nanomembranes is introduced by taking advantages of hollow substrate ***-area and highly uniform gold nanomembranes with nanohole array are fabricated via a flexible and simple replication-releasing *** hollow structures include a hollow core fiber with 30μm core diameter and two ferrules with their hole diameter as 125 and 500μm,*** a proof-of-concept demonstration,2 times higher sensitivity of the bulk refractive index is obtained with this platform compared to that of a counterpart on a solid silica *** a portable and compact configuration provides unique opportunities to explore the intrinsic properties of the metal nanomembranes and paves a new way to fabricate high-performance plasmonic devices for biomolecule sensing and color filter.

关键词： performance metallic high

Mid-infrared all-optical modulators based on an acetylene-filled hollow-core fiber

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Light(Advanced Manufacturing) 2022年第4期3卷 86-93页

作者： Kaiyuan Zheng Shoulin Jiang Feifan Chen Yan Zhao shoufei gao Yingying Wang Hoi Lut Ho Wei Jin Department of Electrical Engineering and Photonics Research Institute The Hong Kong Polytechnic UniversityHong KongChina Photonics Research Center The Hong Kong Polytechnic University Shenzhen Research InstituteShenzhenChina Institute of Photonics Technology Jinan UniversityGuangzhouChina

We report all-optical mid-infrared phase and intensity modulators based on the photo-thermal effect in an acetylene-filled anti-resonant hollow-core *** absorption of the control beam promotes the gas molecules to a higher energy level,which induces localized heating through non-radiative relaxation and modulates the refractive index of the gas material and hence the accumulated phase of the signal beam propagating through the hollow-core *** modulating the intensity of the control beam,the phase of the signal beam is modulated *** use of a 1.53μm near-infrared control beam,all-optical phase modulation up to 2.2πrad is experimentally demonstrated at the signal wavelength of 3.35μ*** the phase modulator placed in one arm of a Mach-Zehnder interferometer,intensity modulation with on-off ratio of 25 dB is *** gas-filled hollow-core-fiber modulators could operate over an ultra-broad wavelength band from near-to mid-infrared and have promising application in mid-infrared photonic systems.

关键词： Optical phase modulator Mid-infrared Hollow-core fiber Mach-Zehnder interferometer Photothermal effect

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紫外空芯反谐振光纤的研制

中国激光 2020年第8期47卷 213-219页

作者：王梦玲高寿飞汪滢莹王璞北京工业大学材料与制造学部北京100124 北京工业大学国家产学研激光技术中心北京100124 北京工业大学跨尺度激光成型制造技术教育部重点实验室北京100124

为实现紫外波段激光的柔性传输,拉制了一款包层有7根毛细玻璃管的空芯反谐振光纤。光纤的外径为95μm,纤芯直径为11μm;包层孔的直径平均为5μm,壁厚平均为319nm。经测试发现,该光纤可同时实现266nm、355nm两个重要的紫外激光波段的导光... 详细信息

为实现紫外波段激光的柔性传输,拉制了一款包层有7根毛细玻璃管的空芯反谐振光纤。光纤的外径为95μm,纤芯直径为11μm;包层孔的直径平均为5μm,壁厚平均为319nm。经测试发现,该光纤可同时实现266nm、355nm两个重要的紫外激光波段的导光,传输损耗分别为0.25dB/m@266nm,0.8dB/m@355nm。测量光纤两个传输通带内的弯曲损耗,结果表明,当弯曲半径为5cm时,弯曲损耗分别为0.05dB/m@266nm,0.023dB/m@355nm。该光纤纤芯直径小,对弯曲不敏感,使设备进一步小型化成为可能。拉制的这款无节点空芯反谐振光纤有望在激光传输和紫外激光光谱学中发挥重要作用。

关键词：光纤光学空芯反谐振光纤弯曲损耗紫外激光柔性传输

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空芯反谐振光纤与单模光纤的低损耗熔接研究

光学学报 2018年第10期38卷 65-69页

作者：李晓倩高寿飞汪滢莹王璞北京工业大学激光工程研究院北京100124

光子晶体光纤因具有设计自由、导光机制新颖等优势而被人们广泛关注。相比于带隙型光子晶体光纤和Kagome光纤,空芯反谐振光纤(HC-ARF)由于具有结构简单、单模导光、传输谱宽且损耗低的特点,在紫外/中红外光传输、高功率激光产生、非线... 详细信息

光子晶体光纤因具有设计自由、导光机制新颖等优势而被人们广泛关注。相比于带隙型光子晶体光纤和Kagome光纤,空芯反谐振光纤(HC-ARF)由于具有结构简单、单模导光、传输谱宽且损耗低的特点,在紫外/中红外光传输、高功率激光产生、非线性光学及传感等领域都具有很好的应用。但是HC-ARF要真正得到广泛应用,其与普通单模光纤的熔接必须简便且损耗低,然而,HC-ARF包层特殊的毛细管孔结构在熔接过程中容易坍塌,且其模场直径不同于普通单模光纤,故直接熔接时损耗很大。为此,引入一段纤芯直径为20μm的实芯大模场光纤作为模场过渡,实现了HC-ARF和普通单模光纤之间的熔接,熔接损耗由直接熔接的3dB降至0.844dB。

关键词：光纤光学光子晶体光纤熔接损耗过渡光纤空芯反谐振光纤模场匹配

基于空芯光纤光热光谱技术的高灵敏度CO_(2)检测

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光学学报 2021年第13期41卷 33-40页

作者：姜寿林靳伟陈非凡高寿飞何海律香港理工大学深圳研究院光子研究中心广东深圳518057 香港理工大学电机工程学系中国香港

研究了基于空芯光纤光热光谱技术的2μm波段CO2高灵敏度检测关键技术,采用基于反谐振空芯光纤的低锐度法布里-珀罗干涉仪实现光热相位解调。对于波长为2004.02 nm的CO2 R(18)吸收线,在180 mW的泵浦功率以及1 s的积分时间下,噪声等效体... 详细信息

研究了基于空芯光纤光热光谱技术的2μm波段CO2高灵敏度检测关键技术,采用基于反谐振空芯光纤的低锐度法布里-珀罗干涉仪实现光热相位解调。对于波长为2004.02 nm的CO2 R(18)吸收线,在180 mW的泵浦功率以及1 s的积分时间下,噪声等效体积分数约4.7×10-8。为提高系统测量的稳定性,对光纤端面镀膜以抑制泵浦光的干涉效应,同时将探测器波长锁定到干涉仪的工作点上。1 h内,体积分数为10-5的CO2标准气体对应的信号波动约4.7%。噪声分析表明,探测光源的相位噪声和强度噪声是当前系统的主要噪声来源。

关键词：光纤光学光纤传感器空芯光纤二氧化碳光热光谱技术