Applied Optics and Photonics China最新文献_第3页

Research on automatic assembly method of dual manipulator for large-scale segmented optical components 大型分段光学元件双机械手自动装配方法研究

Applied Optics and Photonics China Pub Date : 2023-12-18 DOI: 10.1117/12.3005430

Pei Li, Jie Wu, Chong Lv, Yue Xiao, Chunrui Zhang

引用次数: 0

Fabrication of millimeter-scale crystal whispering gallery mode resonators 制作毫米级晶体耳语画廊模式谐振器

Applied Optics and Photonics China Pub Date : 2023-12-18 DOI: 10.1117/12.3006429

Junhan Liu, Tianliang Qu, Changxin Xiong

{"title":"Fabrication of millimeter-scale crystal whispering gallery mode resonators","authors":"Junhan Liu, Tianliang Qu, Changxin Xiong","doi":"10.1117/12.3006429","DOIUrl":"https://doi.org/10.1117/12.3006429","url":null,"abstract":"The Whispering Gallery Modes Resonators(WGMR) are specific electromagnetic modes confined in circular resonators, where light beams are guided along the circumferences of the resonators with very small losses by total internal reflections. WGMR is the core component of optical filters, ultra-narrow linewidth laser, microwave photoelectric oscillator, optical frequency comb, rubidium atomic clock etc and high-precision sensors. Q factor is defined as the ratio of the total energy of photons in WGMR to the loss lost in one propagation cycle. The energy loss of WGMR is discussed. The cutting dynamics model diagram was established based the cutting force model for turning. The key technology affecting WGMR’s Q factor was the fabrication process. The manufacture of ultra-high Q factor WGMR are realized through rough machining, ultra-precision turning and precision polishing. The processing of ultra-precision turning and precision polishing is reported in the paper. The important fabrication processing of WGMR is ultra-precision turning. The test results show that the Q value of WGMR is 1.5×10 9@1550nm by Q value measurement system. The surface roughness and shape error of WGMR are 0.6nm (Ra value) and 5.3nm (PV value) respectively, measured by white light interferometer.","PeriodicalId":298662,"journal":{"name":"Applied Optics and Photonics China","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138994919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance measurement of FlexRay pupil shaping module in lithography system 光刻系统中 FlexRay 光瞳整形模块的性能测量

Applied Optics and Photonics China Pub Date : 2023-12-18 DOI: 10.1117/12.3008032

Zenghui Yang, Fang Zhang, Jingpei Hu, Zhenxin Huang, Aijun Zeng, Huijie Huang

引用次数: 0

Ultra-low-phase-noise Ka band microwave optoelectronic oscillator and its application in frequency conversion 超低相噪 Ka 波段微波光电振荡器及其在频率转换中的应用

Applied Optics and Photonics China Pub Date : 2023-12-18 DOI: 10.1117/12.3007575

Hao Zhang, Caibin Yu, Pengfei Qu, Lijun Sun

{"title":"Ultra-low-phase-noise Ka band microwave optoelectronic oscillator and its application in frequency conversion","authors":"Hao Zhang, Caibin Yu, Pengfei Qu, Lijun Sun","doi":"10.1117/12.3007575","DOIUrl":"https://doi.org/10.1117/12.3007575","url":null,"abstract":"In this paper, we develop and demonstrate a proof-of-principle OEO, which features ultra-low phase noise in a Ka frequency band. The prototype of the whole OEO is in a cylindrical form. The optical fibers are wound on the outside, while all the optoelectronic devices are in the center. The fiber transmission noise is suppressed via phase modulation for the power redistribution. The spur-level improvement and steady state operation is guaranteed by dual-loop structure with 8.7 km and 11.6 km fiber spools, respectively. The optical power loss is reduced by the dual-output electro-optical intensity modulator (DEOM) instead of another 50:50 optical coupler. The noise floor for the fiber link from laser intensity and phase noises is suppressed by the balanced photodetector (PD) with specialized working conditions. Performance is investigated in detail. The OEO operates at the frequency of 30 GHz with the spur suppression of 74.6 dBc. The phase noise of -130.7 dBc/Hz (-149.1 dBc/Hz) @1 kHz (10 kHz), respectively, are achieved. The spectral purity is much higher than the current commercial signal source and equipment. Further, the developed OEO is applied to the frequency conversion. The RF signal, to be converted with a frequency of 7 GHz, is coupled into the OEO. Each beat results with OEO are observed clearly. All these results show that OEO has broad prospects in high precision infrastructure and projects.","PeriodicalId":298662,"journal":{"name":"Applied Optics and Photonics China","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138995031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fast separation method of misalignment errors for cylindrical full-surface interferometry 圆柱形全表面干涉测量法的偏差快速分离法

Applied Optics and Photonics China Pub Date : 2023-12-18 DOI: 10.1117/12.3008115

Hui Zhang, Fang Ji, Qian Liu

{"title":"Fast separation method of misalignment errors for cylindrical full-surface interferometry","authors":"Hui Zhang, Fang Ji, Qian Liu","doi":"10.1117/12.3008115","DOIUrl":"https://doi.org/10.1117/12.3008115","url":null,"abstract":"Right-angle conical mirror is widely used for wavefront conversion, which can construct a null interferometric optical path to achieve interferometric measurement of the cylindrical full-surface topography. However, the effect of the misalignment error on measurements is very significant, due to the difficulty in adjusting the position and attitude of the right-angle conical mirror and the measured cylindrical surface to the ideal state. The pure tilt misalignment errors will lead to parallel interference fringes. Based on this important finding, we propose a fast separation method of translation and tilt misalignment errors. First, adjust the relative translation of the right-angle conical mirror and the cylinder to be measured until all interference fringes are parallel. Then, perform measurement and remove the regular primary tilt from the result to separate the misalignment error effectively, so that the cylindrical full-surface topography is obtained. Under various misalignment errors, the extreme difference of all the PV values of the cylindrical surfaces measured by our method is less than 0.07λ. Experiments indicate that the proposed method can obtain essentially consistent measurements under different misalignment errors. Furthermore, the method is simple to operate and requires no data processing, laying the foundation for the practical application of cylindrical full-surface interferometry measurement.","PeriodicalId":298662,"journal":{"name":"Applied Optics and Photonics China","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138963509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis and implementation of multi-cooperative target location algorithm based on distance measurement 基于距离测量的多合作目标定位算法的分析与实现

Applied Optics and Photonics China Pub Date : 2023-12-18 DOI: 10.1117/12.3006994

Shixiong Luo, Chuangang Xu, Jiangpeng Song

引用次数: 0

A new method of multi-target tracking in wide-area for dealing with the threat of small celestial bodies in space 应对空间小天体威胁的广域多目标跟踪新方法

Applied Optics and Photonics China Pub Date : 2023-12-18 DOI: 10.1117/12.3007852

Fei Yu, Shuai Hou, Dan Hou, Han Zhang, Nihui Xie, Liu Yang, ChunHui Liao

引用次数: 0

Design of MZI electro-optic modulator on lithium niobate heterogeneous integration platforms 在铌酸锂异质集成平台上设计 MZI 光电调制器

Applied Optics and Photonics China Pub Date : 2023-12-18 DOI: 10.1117/12.3007772

Zhuoyun Li, Yang Chen, Qing Wang, Mingbin Yu, Shuxiao Wang, Yan Cai

引用次数: 0

Visual aiming and positioning system based on diffraction effect 基于衍射效应的视觉瞄准和定位系统

Applied Optics and Photonics China Pub Date : 2023-12-18 DOI: 10.1117/12.2692331

Fusheng Li, Zheng-mao Xie

引用次数: 0

Diffusion of electron clouds in high-speed ultraviolet photonic imaging detectors 高速紫外线光子成像探测器中的电子云扩散

Applied Optics and Photonics China Pub Date : 2023-12-18 DOI: 10.1117/12.3007806

Jinyao Duan, Jinkun Zheng, Yang Yang, Yuchao Song, Anpeng Lai, Bo Wang, Weiwei Cao, Yonglin Bai

{"title":"Diffusion of electron clouds in high-speed ultraviolet photonic imaging detectors","authors":"Jinyao Duan, Jinkun Zheng, Yang Yang, Yuchao Song, Anpeng Lai, Bo Wang, Weiwei Cao, Yonglin Bai","doi":"10.1117/12.3007806","DOIUrl":"https://doi.org/10.1117/12.3007806","url":null,"abstract":"In this paper, we mainly study the problem of electron cloud diffusion in high-speed ultraviolet photonic imaging detectors. In this paper, the size of the electron cloud transmitted by the microchannel plate and the anode in the high-speed ultraviolet photon imaging detector is studied by simulation, including the bias angle, pore diameter, voltage (U) and distance between MCP and anode (l) on the electron cloud received by the anode. the diffusion radius of the electron cloud increases with the increase of the bias angle, and the voltage (U) and the distance (l) between the MCP and the anode on the electron cloud received by the anode. The research shows that the diffusion radius of the electron cloud increases with the increase of the bias angle, the diffusion radius of the electron cloud. When U is larger, the energy of electron cloud is also higher. When the voltage increases to 1900V, the electron movement speed increases linearly with the increase of U. Moreover, the diffusion distance of the electron cloud radius increases with the increase of the transmission distance l. When the distance is 2 mm, a maximum electron diffusion radius is obtained. When the bias angle is 10°, the pore diameter is 10um, the voltage is 2000V, and the distance l is 0.5mm, the diffusion ratio of the electron cloud is 5.5.","PeriodicalId":298662,"journal":{"name":"Applied Optics and Photonics China","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138965097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0