Chinese Optics Letters最新文献_第3页

High-power single-frequency fiber amplifiers: progress and challenge [Invited] 大功率单频光纤放大器:进展与挑战[特邀]

IF 3.5 2区物理与天体物理

Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.090002

Can Li, Yue Tao, Man Jiang, P. Ma, W. Liu, R. Su, Jiangming Xu, Jin-yong Leng, P. Zhou

{"title":"High-power single-frequency fiber amplifiers: progress and challenge [Invited]","authors":"Can Li, Yue Tao, Man Jiang, P. Ma, W. Liu, R. Su, Jiangming Xu, Jin-yong Leng, P. Zhou","doi":"10.3788/col202321.090002","DOIUrl":"https://doi.org/10.3788/col202321.090002","url":null,"abstract":"Unlike conventional continuous-wave lasers with wide spectra, the amplification of single-frequency lasers in optical fibers is much more difficult owing to the ultra-high power spectral density induced nonlinear stimulated Brillouin scattering effect. Nevertheless, over the past two decades much effort has been devoted to improving the power scaling and performance of high-power single-frequency fiber amplifiers. These amplifiers are mostly driven by applications, such as high precision detection and metrology, and have benefited from the long coherence length, low noise, and excellent beam quality of this type of laser source. In this paper, we review the overall development of high-power single-frequency fiber amplifiers by focusing on its progress and challenges, specifically, the strategies for circumventing the stimulated Brillouin scattering and transverse mode instability effects that, at present, are the major limiting factors of the power scaling of the single-frequency fiber amplifiers. These factors are also thoroughly discussed in terms of free-space and all-fiber coupled architecture. In addition, we also examine the noise properties of single-frequency fiber amplifiers, along with corresponding noise reducing schemes. Finally, we briefly envision the future development of high-power single-frequency fiber amplifiers.","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"7 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82628703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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: 1

Dark-field line confocal imaging with point confocality and extended line field for bulk defects detection 基于点共焦和扩展线场的暗场线共聚焦成像用于体缺陷检测

IF 3.5 2区物理与天体物理

Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.041203

Jingtao Dong, Tengda Zhang, Lei Yang, Yuzhong Zhang, R. Lu, Xinglong Xie

引用次数: 0

High sensitivity all-fiber bend sensor based on modal interferences in a ring core fiber 基于环芯光纤模态干涉的高灵敏度全光纤弯曲传感器

IF 3.5 2区物理与天体物理

Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.051201

Fan Zhang, Beibei Qi, Baijin Su, Ou Xu, Yuwen Qin

引用次数: 0

Effects of propagation phase on the coupling of plasmonic optical modes 传播相位对等离子体光模耦合的影响

IF 3.5 2区物理与天体物理

Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.010003

Wan-xia Huang, Yabo Zhang, Yuan Pei, Maosheng Wang, Fenghua Shi, Kuan-Yi Li

{"title":"Effects of propagation phase on the coupling of plasmonic optical modes","authors":"Wan-xia Huang, Yabo Zhang, Yuan Pei, Maosheng Wang, Fenghua Shi, Kuan-Yi Li","doi":"10.3788/col202321.010003","DOIUrl":"https://doi.org/10.3788/col202321.010003","url":null,"abstract":"The temporal coupled-mode theory (TCMT) has made significant progress in recent years, and is widely applied in explaining a variety of optical phenomena. In this paper, the optical characteristics of the metasurface composed of nano-bars and nano-rings are simulated. The simulation results are well explained by TCMT under the coupled basis vector. However, when the structural asymmetry is large, the fitting of results shows that the total radiation loss is not conservative, in contradiction to the requirement of traditional TCMT. We solved this inconsistency by introducing the propagation phase into the near-field coupling term of TCMT. The studies show that, unlike the local mode near the exceptional point which corresponds to the radiation loss of the bright mode, the global mode near the diabolic point is closely related to the propagation phase. Furthermore, the structure near the diabolic point shows characteristic cross-coupling with the change of period. This study proposes a new theoretical framework for comprehending the interaction of light and matter and offers some guiding implications for the application of TCMT to a variety of related domains.","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"32 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81275922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Cascaded metasurface for separated information encryption [Invited] 用于分离信息加密的级联元表面[特邀]

IF 3.5 2区物理与天体物理

Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.020003

Jiahao Wang, Guodong Zhu, Weiguo Zhang, Zhou Zhou, Zile Li, Guoxing Zheng

引用次数: 2

Highly sensitive torsion sensor based on Mach–Zehnder interference in helical seven-core fiber taper 基于Mach-Zehnder干涉的螺旋七芯光纤锥度高灵敏度扭矩传感器

IF 3.5 2区物理与天体物理

Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.041205

Jiabin Wang, Xinzhe Zeng, Jian Zhou, Jiayu Hao, Xing-yu Yang, Yue Liu, Wenhuan Chen, Song Li, Yunxiang Yan, Tao Geng, Weimin Sun, Libo Yuan

引用次数: 1

Optical spiral vortex from azimuthally increasing/decreasing exponential phase gradients 从方位增加/减少指数相位梯度的光学螺旋涡

2区物理与天体物理

Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.112601

Peihua Jie, Zhenwei Xie, Xiaocong Yuan

引用次数: 0

SNR enhancement of magnetic fields measurement with the diamond NV center using a compound filter system 利用复合滤波系统对金刚石NV中心磁场进行信噪比增强测量

2区物理与天体物理

Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.111201

An Ye, Dingyuan Fu, Mingming Wu, Jiahao Guo, Tianze Sheng, Xiaolin Li, Shangqing Gong, Yueping Niu

引用次数: 0

Improvement of Raman spectrum uniformity of SERS substrate based on flat electrode 基于平电极的SERS衬底拉曼光谱均匀性改善

2区物理与天体物理

Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.113001

Zhihui Jiang, Shen Zhang, Congxi Song, Hongmin Mao, Xin Zhao, Huanjun Lu, Zhaoliang Cao

{"title":"Improvement of Raman spectrum uniformity of SERS substrate based on flat electrode","authors":"Zhihui Jiang, Shen Zhang, Congxi Song, Hongmin Mao, Xin Zhao, Huanjun Lu, Zhaoliang Cao","doi":"10.3788/col202321.113001","DOIUrl":"https://doi.org/10.3788/col202321.113001","url":null,"abstract":"The distribution of metal nanoparticles on the surface of a surface enhancement Raman scattering (SERS)-active substrate plays a prominent part in not only the enhancement of Raman vibration signal, but also the spectrum uniformity. Here, a facile method to fabricate SERS substrates with excellent homogeneity and low cost was proposed, in which a lyotropic liquid crystal soft template was introduced for the coordinated growth of the silver nanoflowers in the process of electrochemistry deposition. Simulation was carried out to illustrate the dominated influence of the distance of electrodes on the deposited nanoparticle number. Two kinds of conductive materials, silver plate and indium tin oxide (ITO) glass, were chosen as the anode, while the cathode was fixed as ITO glass. The simulated conjecture on the effect of electrode flatness on the uniformity of deposited nanoparticles in silver is experimentally proved. More importantly, it was demonstrated that with a relatively smooth and flat ITO glass anode, a SERS substrate featuring higher spectrum uniformity could be achieved. This work is of great significance to the actual applications of the SERS substrate for quantitative detection with high sensitivity.","PeriodicalId":10293,"journal":{"name":"Chinese Optics Letters","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135612381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

High energy efficiency soliton microcomb generation in high coupling strength, large mode volume, and ultra-high-Q micro-cavity 在高耦合强度、大模体积和超高q微腔中产生高能效孤子微梳

2区物理与天体物理

Chinese Optics Letters Pub Date : 2023-01-01 DOI: 10.3788/col202321.101902

Wenwen Cui, Zheng Yi, Xinyu Ma, Yong Geng, Heng Zhou, Kun Qiu

引用次数: 0