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Your search keyword '"徐军"' showing total 19 results
Start Over Author "徐军" Topic electronic, optical and magnetic materials
19 results on '"徐军"'

2. Registration of infrared image and visible image based on saliency and EOH feature analysis

Author

付天宇 Fu Tian-yu, 丰苏 Feng Su, 杨健 Yang Jian, and 徐军 Xu Jun

Subjects
Infrared image, Computer science, business.industry, 04 agricultural and veterinary sciences, 02 engineering and technology, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, 040103 agronomy & agriculture, 0202 electrical engineering, electronic engineering, information engineering, 0401 agriculture, forestry, and fisheries, 020201 artificial intelligence & image processing, Computer vision, Artificial intelligence, business, Image based
Published
2016
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3. Automatic mode-lock circuit used in NPR passive mode-locked fiber laser

Author

徐军 Xu Jun, 易波 Yi Bo, 梅理 Mei Li, 贾文 Jia Wen, and 陈国梁 Chen Guo-liang

Subjects
Engineering, Record locking, business.industry, Detector, Electrical engineering, Physics::Optics, Laser, Signal, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention, Microcontroller, Polarization controller, law, Fiber laser, State (computer science), business
Abstract

As passively mode-locked fiber lasers based on Nonlinear Polarization Rotation(NPR)have the problem of low stability and difficulty to self-start into a mode-locking state during operation,an online automatic mode-lock circuit was designed to adjust the laser in real time to get a stable modelocked output.In the design,the signal from NPR passively mode-locked laser was transformed to an electrical pulse signal with a high speed photoelectric detector,and it was amplified and shaped linearly to be received by the Micro Computer Unit(MCU)to count.Then the MCU distinguished the state of the laser based on quick mode-lock judge algorithm and adjusted the electric controlled polarization controller(PC)on the fiber laser automatically.The experiment results show that for the NPR modelocked fiber laser with a repetition rate of 6.238MHz,the automatic mode-lock circuit can distinguish the losing lock in 6ms,and can find and get into the mode-lock state in 10.24sautomatically.ForNPR passive mode-locked fiber lasers with repetition rate lower than 16 MHz,this automatic modelock circuit can get into a stable mode-locked state quickly or restart immediately if the mode-lock state is lost for some reasons,which reaches the design requirements and shows advantages of simple structures,low costs,low powers,and high reliability.

Published
2013
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4. Laser Diode-Pumped Continuous-Wave Mode-Locked Yb,NaCaF2Laser

Author

徐军 Xu Jun, 胡明列 Hu Minglie, 王清月 Wang Qingyue, 郑丽和 Zheng Lihe, 李红军 Li Hongjun, 柴路 Chai Lu, 闫杰 Yan Jie, 苏良碧 Su Liangbi, and 葛文琦 Ge Wenqi

Subjects
Materials science, Laser diode, business.industry, law, Mode (statistics), Optoelectronics, Continuous wave, Electrical and Electronic Engineering, business, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention
Published
2010
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5. Spectroscopic and Laser Properties of Yb:Lu3Al5O12 Crystal under Different Annealing Atmospheres

Author

梁晓燕 Liang Xiaoyan, 赵志伟 Zhao Zhiwei, 徐军 Xu Jun, 徐晓东 Xu Xiaodong, 马春兰 Ma Chunlan, and 王晓丹 Wang Xiaodan

Subjects
Materials science, law, Annealing (metallurgy), Analytical chemistry, Electrical and Electronic Engineering, Laser, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention
Published
2010
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6. Characterization of Laser Diode-Pumped Passively Mode-Locked Yb:YSO Laser

Author

赵曰峰 Zhao Yuefeng, 郑丽和 Zheng Lihe, 刘莹 Liu Ying, 刘成成 Liu Cheng-cheng, 牛荣莲 Niu Rong-lian, 苏良碧 Su Liangbi, 徐军 Xu Jun, 刘杰 Liu Jie, and 王伟卫 Wang Weiwei

Subjects
Materials science, Laser diode, business.industry, law, Mode (statistics), Optoelectronics, Electrical and Electronic Engineering, business, Laser, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention, Characterization (materials science)
Published
2010
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7. Near-Infrared Emission of Bi-Doped CdWO4Crystals Grown by Bridgman Method

Author

胡元 Hu Yuan, 虞灿 Yu Can, 夏海平 Xia Haiping, 徐军 Xu Jun, 罗彩香 Luo Caixiang, and 陈红兵 Chen Hong-bing

Subjects
Materials science, business.industry, Bridgman method, Doping, Near-infrared spectroscopy, Optoelectronics, Electrical and Electronic Engineering, business, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Published
2010
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8. Theoretical and Experimental Research of End Pumped Quasi-Three-Level Yb∶YAG Laser

Author

赵广军 Zhao Guangjun, 葛剑虹 Ge Jianhong, 汪莎 Wang Sha, 徐军 Xu Jun, 胡淼 Hu Miao, 刘崇 Liu Chong, and 陈军 Chen Jun

Subjects
Optics, Materials science, business.industry, law, Electrical and Electronic Engineering, business, Laser, Quasi three level, Atomic and Molecular Physics, and Optics, Experimental research, Electronic, Optical and Magnetic Materials, law.invention
Published
2009
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9. Growth and Spectral Properties of Nd∶CaNb2O6Crystal

Author

徐军 Xu Jun, 辛征 Xin Zheng, 周圣明 Zhou Shengming, 程艳 Cheng Yan, and 徐晓东 Xu Xiaodong

Subjects
Materials science, Spectral properties, Electrical and Electronic Engineering, Molecular physics, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Published
2009
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10. Experimental Study of Continuous-Wave Mode-Locked Picosecond Yb:LSO Laser

Author

苏良碧 Su Liangbi, 魏志义 Wei Zhiyi, 邹育婉 Zou Yuwan, 周斌斌 Zhou Binbin, 李德华 Li Dehua, 徐军 Xu Jun, and 郑丽和 Zheng Lihe

Subjects
Materials science, Optics, law, business.industry, Picosecond, Mode (statistics), Continuous wave, Electrical and Electronic Engineering, Laser, business, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention
Published
2009
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11. High-Power Laser Diode-Pumped Yb,NaCaF2 Continuous-Wave Laser

Author

郑丽和 Zheng Lihe, 苏良碧 Su Liangbi, 葛文琦 Ge Wenqi, 闫杰 Yan Jie, 王清月 Wang Qingyue, 柴路 Chai Lu, 李红军 Li Hongjun, 胡明列 Hu Minglie, and 徐军 Xu Jun

Subjects
Materials science, Laser diode, law, business.industry, Continuous wave, Optoelectronics, Electrical and Electronic Engineering, business, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention, Power (physics)
Published
2009
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12. A Diode Pumped Yb:LSO Self-Mode-Locked Laser

Author

苏良碧 Su Liangbi, 陈飞 Chen Fei, 范秀伟 Fan Xiuwei, 郑丽和 Zheng Lihe, 洪正平 Hong Zhengping, 徐军 Xu Jun, 刘杰 Liu Jie, and 王伟卫 Wang Weiwei

Subjects
Distributed feedback laser, Materials science, business.industry, Mode (statistics), Laser, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention, X-ray laser, law, Optoelectronics, Electrical and Electronic Engineering, business, Diode
Published
2009
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13. Making and Spectra Property of the Composite Yb:Y3Al5O12/Y3Al5O12Crystal

Author

赵志伟 Zhao Zhiwei, 徐军 Xu Jun, Jean-Christophe Chanteloup, Gilbert Bourdet Gilbert Bourdet, 王静雅 Wang Jingya, and 王晓丹 Wang Xiaodan

Subjects
Materials science, Property (philosophy), Composite number, Composite material, Atomic and Molecular Physics, and Optics, Spectral line, Electronic, Optical and Magnetic Materials
Published
2008
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14. Edge Detection Algorithm of Laser Active Imaging

Author

徐军 Xu Jun, 徐利国 Xu Liguo, 张胜修 Zhang Shengxiu, 李晓峰 Li Xiaofeng, 罗积军 Luo Jijun, and 朱桂芳 Zhu Guifang

Subjects
Optics, Materials science, business.industry, law, Electrical and Electronic Engineering, business, Laser, Atomic and Molecular Physics, and Optics, Edge detection, Electronic, Optical and Magnetic Materials, law.invention
Published
2010
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19. Sequential Detection of Targets in Laser Active Imaging System

Author

徐军 Xu Jun, 曹立佳 Cao Lijia, 罗积军 Luo Jijun, 张盈 Zhang Ying, 张胜修 Zhang Shengxiu, and 李晓峰 Li Xiaofeng

Subjects
Materials science, Optics, business.industry, law, Electrical and Electronic Engineering, business, Laser, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention
Published
2011
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