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Harnessing sub-comb dynamics in a graphene-sensitized microresonator for gas detection

Frontiers of Optoelectronics 2024年第2期17卷 11-21页

作者： Yupei Liang Mingyu Liu Fan Tang Yanhong Guo Hao Zhang Shihan Liu Yanping Yang Guangming Zhao Teng Tan baicheng yao Key Laboratory of Optical Fiber Sensing and Communications(Ministry of Education) University of Electronic Science and Technology of ChinaChengdu 611731China Institute of Semiconductors Chinese Academy of SciencesBeijing 100083China Engineering Center of Integrated Optoelectronic&Radio Meta-Chips University of Electronic Science and TechnologyChengdu 611731China

Since their inception, frequency combs generated in microresonators, known as microcombs, have sparked significant scientific interests. Among the various applications leveraging microcombs, soliton microcombs are often preferred due to their inherent mode-locking capability. However, this choice introduces additional system complexity because an initialization process is required. Meanwhile, despite the theoretical understanding of the dynamics of other comb states, their practical potential, particularly in applications like sensing where simplicity is valued, remains largely untapped. Here, we demonstrate controllable generation of sub-combs that bypasses the need for accessing bistable regime. And in a graphene-sensitized microresonator, the sub-comb heterodynes produce stable, accurate microwave signals for high-precision gas detection. By exploring the formation dynamics of sub-combs, we achieved 2 MHz harmonic comb-to-comb beat notes with a signal-to-noise ratio (SNR) greater than 50 dB and phase noise as low as – 82 dBc/Hz at 1 MHz offset. The graphene sensitization on the intracavity probes results in exceptional frequency responsiveness to the adsorption of gas molecules on the graphene of microcavity surface, enabling detect limits down to the parts per billion (ppb) level. This synergy between graphene and sub-comb formation dynamics in a microcavity structure showcases the feasibility of utilizing microcombs in an incoherent state prior to soliton locking. It may mark a significant step toward the development of easy-to-operate, systemically simple, compact, and high-performance photonic sensors.

关键词： Microresonator Optical frequency comb Graphene Gas sensing

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基于次级梳的石墨烯功能化微球气体传感

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科学通报 2024年第12期69卷 1565-1571页

作者：梁渝佩刘铭宇郭晏宏张浩常冰安宁谭腾姚佰承电子科技大学光纤传感与通信教育部重点实验室成都611731

光学微腔具有高品质因子和微小体积,为光学传感提供了理想平台.受限于微腔材料惰性和光源性能,基于光学微腔的高灵敏气体传感器的实现仍然是一个挑战.微腔光频梳具有等间距的频谱分量,被广泛用于大容量通信、高精密测量和光谱分析应用,... 详细信息

光学微腔具有高品质因子和微小体积,为光学传感提供了理想平台.受限于微腔材料惰性和光源性能,基于光学微腔的高灵敏气体传感器的实现仍然是一个挑战.微腔光频梳具有等间距的频谱分量,被广泛用于大容量通信、高精密测量和光谱分析应用,已经成为通信和传感的新一代高性能光源.本文介绍了一种基于次级梳的石墨烯功能化微球气体传感器.相较于孤子态微梳,次级梳具有较高鲁棒性和更容易激发的特点,在气体传感方面展现出应用潜力.通过把次级梳的拍频作为传感探测信号,在石墨烯增敏作用下,实现了750 Hz/ppb的最大探测灵敏度和4 ppb的探测极限.该传感器保留了光频梳稳定性优势,同时避免了复杂的孤子激发和维持过程,为高性能实用化微型气体传感器的实现提供了新的技术路线.

关键词：光频梳石墨烯微腔气体传感

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基于Workbench的重型电动数控螺旋压力机机身轻量化设计

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锻压技术 2024年第3期49卷 178-185页

作者：姚佰成朱元胜赵至友赵国勇陈伟山东理工大学机械工程学院山东淄博255000 中锻智能装备设计院(青岛)有限公司山东青岛266300 青岛宏达锻压机械有限公司山东青岛266300

针对当前压力机机身笨重与材料浪费的问题,以EP-12500重型电动数控螺旋压力机机身为研究对象,探索压力机机身结构的轻量化设计方法。首先,基于Workbench对压力机机身进行有限元分析,得到机身应力值远小于材料屈服强度的非承载区域;然后... 详细信息

针对当前压力机机身笨重与材料浪费的问题,以EP-12500重型电动数控螺旋压力机机身为研究对象,探索压力机机身结构的轻量化设计方法。首先,基于Workbench对压力机机身进行有限元分析,得到机身应力值远小于材料屈服强度的非承载区域;然后,采用拓扑优化模块对机身非承载区域进行拓扑优化;最后,以质量最小化为目标,确定机身结构材料去除区域的具体位置,实现对机身结构的轻量化设计。优化结果表明:优化后压力机机身的体积与质量均减小了9.65%,实现了机身轻量化,减少了制造成本;机身预紧工况下最大变形量增加了0.17 mm,打击工况下最大变形量增加不足0.01 mm,与原机身变形基本一致;机身预紧工况下垂直刚度为8.21 MN·mm^(-1),打击工况下垂直刚度为13.08 MN·mm^(-1),均满足使用要求;机身预紧工况下最大等效应力降低了2.51%,打击工况下最大等效应力降低了18.3%,降低了底座承受的冲击力,提高了底座的使用寿命。

关键词：压力机机身拓扑优化轻量化刚度预紧工况打击工况

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Kilometers Long Graphene-Coated Optical Fibers for Fast Thermal Sensing

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Research 2021年第1期2021卷 286-294页

作者： Yiyong Guo Bing Han Junting Du Shanshan Cao Hua Gao Ning An Yiwei Li Shujie An Zengling Ran Yue Lin Wencai Ren Yunjiang Rao baicheng yao Key Laboratory of Optical Fiber Sensing and Communications(Education Ministry of China) University of Electronic Science and Technology of ChinaChengdu 611731China Research Centre of Optical Fiber Sensing Zhejiang LaboratoryHangzhou 310000China Optical Fiber Co. Ltd.ZTT GroupNantong 226009China Carbonene Technology Co. LtdDeyang 618000China Optical Science and Technology Ltd. China National Petroleum CorporationChengdu 610041China Cavendish Laboratory University of CambridgeCB30HEUK Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China

The combination of optical fiber with graphene has greatly expanded the application regimes of fiber optics,from dynamic optical control and ultrafast pulse generation to high precision ***,limited by fabrication,previous graphene-fiber samples are typically limited in the micrometer to centimeter scale,which cannot take the inherent advantage of optical fibers—longdistance optical ***,we demonstrate kilometers long graphene-coated optical fiber(GCF)based on industrial graphene nanosheets and coating *** GCF shows unusually high thermal diffusivity of 24.99 mm^(2) s^(-1) in the axial direction,measured by a thermal imager *** enables rapid thermooptical response both in optical fiber Bragg grating sensors at one point(18-fold faster than conventional fiber)and in long-distance distributed fiber sensing systems based on backward Rayleigh scattering in optical fiber(15-fold faster than conventional fiber).This work realizes the industrial-level graphene-fiber production and provides a novel platform for two-dimensional material-based optical fiber sensing applications.

关键词： fiber scattering faster

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Electrically controllable laser frequency combs in graphene-fibre microresonators

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Light(Science & Applications) 2020年第1期9卷 220-228页

作者： Chenye Qin Kunpeng Jia Qianyuan Li Teng Tan Xiaohan Wang Yanhong Guo Shu-Wei Huang Yuan Liu Shining Zhu Zhenda Xie Yunjiang Rao baicheng yao Key Laboratory of Optical Fibre Sensing and Communications(Education Ministry of China) University of Electronic Science and Technology of ChinaChengduChina National Laboratory of Solid State Microstructures and School of Electronic Science and EngineeringSchool of Physics and College of Engineering and Applied SciencesNanjing UniversityNanjingChina Department of Electrical Computerand Energy EngineeringUniversity of Colorado BoulderBoulderCO 80309USA Key Laboratory for Micro-Nano Optoelectronic Devices(Education Ministry of China) School of Physics and ElectronicsHunan UniversityChangshaChina Research Centre for Optical Fibre Sensing Zhejiang LaboratoryHangzhouChina

Laser frequency combs emitting ultrafast pulses of light,at equidistantly discrete frequencies,are cornerstones of modern information *** recent years,the generation of soliton combs in microcavities with ultrahighquality factors has established microcombs as out-oflaboratory ***,the material and geometry of a laser cavity,which determine comb formation,are difficult to electrically *** dynamic control can further enrich the diversity of comb outputs and help to actively stabilize them.

关键词： laser frequency fibre

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Emerging material platforms for integrated microcavity photonics

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Science China(Physics,Mechanics & Astronomy) 2022年第10期65卷 10-28页

作者： Jin Liu Fang Bo Lin Chang Chun-Hua Dong Xin Ou Blake Regan Xiaoqin Shen Qinghai Song baicheng yao Wenfu Zhang Chang-Ling Zou Yun-Feng Xiao State Key Laboratory of Optoelectronic Materials and Technologies School of PhysicsSun Yat-sen UniversityGuangzhou 510000China MOE Key Laboratory of Weak-Light Nonlinear Photonics TEDA Institute of Applied Physics and School of PhysicsNankai UniversityTianjin 300071China State Key Laboratory of Advanced Optical Communications System and Networks School of ElectronicsPeking UniversityBeijing 100871China CAS Key Lab of Quantum Information University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Functional Material for Informatics Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China School of Mathematical and Physical Sciences University of Technology SydneyUltimo 2007Australia School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System Harbin Institute of TechnologyShenzhen 518055China Key Laboratory of Optical Fiber Sensing and Communications(Ministry of Education) University of Electronic Science and Technology of ChinaChengdu 611731China State Key Laboratory of Transient Optics and Photonics Xi’an Institute of Optics and Precision MechanicsChinese Academy of SciencesXi’an 710119China State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics School of PhysicsPeking UniversityBeijing 100871China

Many breakthroughs in technologies are closely associated with the deep understanding and development of new material *** the main material used in microelectronics,Si also plays a leading role in the development of integrated *** indirect bandgap,absence ofχ(2)nonlinearity and the parasitic nonlinear absorptions at the telecom band of Si imposed technological bottlenecks for further improving the performances and expanding the functionalities of Si microcavities in which the circulating light intensity is dramatically *** past two decades have witnessed the burgeoning of the novel material platforms that are compatible with the complementary metal-oxide-semiconductor(COMS)*** particular,the unprecedented optical properties of the emerging materials in the thin film form have resulted in revolutionary progress in microcavity *** this review article,we summarize the recently developed material platforms for integrated photonics with the focus on chip-scale microcavity *** material characteristics,fabrication processes and device applications have been thoroughly discussed for the most widely used new material *** also discuss open challenges and opportunities in microcavity photonics,such as heterogeneous integrated devices,and provide an outlook for the future development of integrated microcavities.

关键词： microcavity integrated optics nonlinear optics

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新型功能化光纤微腔光频梳

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红外与激光工程 2021年第5期50卷 273-274页

作者：谭腾姚佰承电子科技大学光纤传感与通信教育部重点实验室四川成都611732

微腔光频梳以其独特的时频输出特性和集成化优势,正逐渐成为当代信息系统的基石。近期,全光纤的微腔光频梳迎来了新的进展。来自电子科技大学和南京大学的研究者们,以超高Q值光纤法珀谐振腔为载体,实现了激光、克尔和布里渊光频梳的产... 详细信息

微腔光频梳以其独特的时频输出特性和集成化优势,正逐渐成为当代信息系统的基石。近期,全光纤的微腔光频梳迎来了新的进展。来自电子科技大学和南京大学的研究者们,以超高Q值光纤法珀谐振腔为载体,实现了激光、克尔和布里渊光频梳的产生。凭借其低损耗、可调谐、强稳定的独特优势,将有望在服务光纤系统的正时、通信、微波和感知应用中发挥新的潜力。

关键词：光频梳光纤微谐振腔

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Graphene-Fiber Biochemical Sensors: Principles, Implementations, and Advances

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Photonic Sensors 2021年第1期11卷 123-139页

作者： Ning AN Chenye QIN Yiwei LI Teng TAN Zhongye YUAN Hao ZHANG Yu WU baicheng yao Yunjiang RAO Key Lab of Optical Fiber Sensing&Communications University of Electronic Science&Technology of ChinaChengdu611731China Research Center for Optical Fiber Sensing Zhejiang LaboratoryHangzhou310000China

Single atomically thick graphene, with unique structural flexibility, surface sensitivity, and effective light-mater interaction, has shown exceptional advances in optoelectronics. It opens a door for diverse functionalized photonic devices, ranging from passive polarizers to active lasers and parametric oscillators. Among them, graphene-fiber biochemical sensors combine the merits of both graphene and fiber structures, demonstrating impressively high performances, such as single-molecule detectability and fast responsibility. These graphene-fiber biochemical sensors can offer tools in various applications, such as gas tracing, chemical analysis, and medical testing. In this paper, we review the emerging graphene-fiber biochemical sensors comprehensively, including the sensing principles, device fabrications, systematic implementations, and advanced applications. Finally, we summarize the state-of-the-art graphene-fiber biochemical sensors and put forward our outlooks on the development in the future.

关键词： Graphene fiber sensors biochemical sensing

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Noise canceled graphene-microcavity fiber laser sensor for ultrasensitive gas detection

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光子学研究:英文版 2023年第8期11卷 I0003-I0011页

作者： YUCHEN WANG YIWEI LI YICHENG LI HAO ZHANG ZIHAN LIU YANHONG GUO ZEPING WANG JUN HE XUHAN GUO YIPING WANG baicheng yao Key Laboratory of Optical Fiber Sensing and Communications(Ministry of Education) University of Electronic Science and Technology of ChinaChengdu 610054China Guangdong and Hong Kong Joint Research Centre for Optical Fiber Sensors Shenzhen UniversityShenzhen 518060China State Key Laboratory of Advanced Optical Communication Systems and Networks Shanghai Jiao Tong UniversityShanghai 200240China

Optical microcavities offer a promising platform for highly efficient light–matter ***,the combination of microresonators and 2D materials in the nanoscale has further enriched the optoelectronics of microcavity geometries,spurring broad advances including lasers,nonlinear converters,modulators,and ***,we report the concept of compact dual-laser cogeneration in a graphene-microcavity fiber,which offers a way to cancel the optical common mode *** by a single 980 nm pump,orthogonally polarized laser lines are generated in a pair of degeneracy breaking *** two laser lines produce a heterodyne beat note at 118.96 MHz,with frequency noise down to 200 Hz~2∕Hz at 1 MHz offset,demonstrating a linewidth of 930 Hz in *** compact device enables on-line and label-free NH_(3) gas detection with high resolution,realizing a detection limit on a single pmol/L level,and a capability to quantitatively trace gas–graphene *** a combination of graphene optoelectronics and microcavity photonics demonstrates a novel physical paradigm for microlaser control and offers a new scheme for in situ chemical sensing.

关键词： fiber laser pump

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Optical rogue wave in random fiber laser

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Photonics Research 2020年第1期8卷 1-7页

作者： JIANGMING XU JIAN WU JUN YE JIAXIN SONG baicheng yao HANWEI ZHANG JINYONG LENG WEILI ZHANG PU ZHOU YUNJIANG RAO College of Advanced Interdisciplinary Studies National University of Defense TechnologyChangsha 410073China Fiber Optics Research Centre Key Laboratory of Optical Fiber Sensing&Communications(Ministry of Education)University of Electronic Science&Technology of ChinaChengdu 611731China

The famous demonstration of optical rogue waves(RWs),a powerful tool to reveal the fundamental physics in different laser scenarios,opened a flourishing time for temporal *** fiber laser(RFL)has likewise attracted wide attention due to its great potential in multidisciplinary demonstrations and promising ***,owing to the distinctive cavity-free structure,it is a scientific challenge to achieve temporal localized RWs in RFLs,whose feedback arises from multiple scattering in disordered ***,we report the exploration of RW in the highly skewed,transient intensity of an incoherently pumped RFL for the first time,to our knowledge,and unfold the involved kinetics *** corresponding frequency domain measurements demonstrate that the RW event arises from a crucial sustained stimulated Brillouin scattering process with intrinsic stochastic *** investigation highlights a novel path to fully understanding the complex physics,such as photon propagation and localization,in disordered media.

关键词： fiber scattering pumped

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