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Preparation of ultrathin ReS2 nanosheets and their application to Q-switched Er-doped fiber Research
Junshan He, Guohua Zeng, Shaoxian Liu, Haiming Lu, Ruixian Xie, Jingjing Qi, Lili Tao, Bo Zhou,taoll@gdut.edu.cn,zhoubo@scut.edu.cn
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 3, Pages 287-436 doi: 10.1631/FITEE.2000339
Keywords： 二硫化铼；可饱和吸收体；二维材料；调Q光纤激光器
Passive mode-locked Er-doped fiber laser pulse generation based on titanium disulfide saturable absorber Research Articles
Xinxin Shang, Linguang Guo, Huanian Zhang, Dengwang Li, Qingyang Yue,huanian_zhang@163.com,qingyangyue@sdnu.edu.cn
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 5, Pages 615-766 doi: 10.1631/FITEE.2000341
Keywords： 光纤激光器；被动锁模；可饱和吸收体；二硫化钛
Traditional soliton erbium-doped fiber laser with InSe as saturable absorber Research
Xiaojuan Liu, Guomei Wang, Mingxiao Zhu, Kezhen Han, Wenfei Zhang, Huanian Zhang,zhangwenfei@sdut.edu.cn,huanian_zhang@163.com
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 3, Pages 287-436 doi: 10.1631/FITEE.2000387
Keywords： 光纤激光器；纳米片；传统孤子
Fu-yan Wu, Shi-qiang Wang, Hai-wei Chen, Hai-tao Huang,wfyjsnu@126.com,wsq274412@126.com,haiwei0819@163.com,hht840211@163.com
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 3, Pages 312-317 doi: 10.1631/FITEE.2000110
Keywords： Gold nanorods Passive Q-switching 2.3 μm Tm-doped laser materials
Pinghua Tang, Mulin Luo, Ting Zhao, Yuliang Mao,pinghuatang@xtu.edu.cn,1011773923@qq.com,zthaza@126.com,ylmao@xtu.edu.cn
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 3, Pages 287-436 doi: 10.1631/FITEE.2000372
Keywords： 掺铒光纤激光器；石墨烯；可饱和吸收体；被动锁模
A New Type of Q-switched and Frequency-doubling Green Laser
Chen Fei,Huo Yujing,He Shufang,Feng Lichun
Strategic Study of CAE 2000, Volume 2, Issue 4, Pages 39-42
A new type of LD pumped Nd： YV04- KTP Q-switched green laser is demonstrated.By using the KTP crystal as both an electro-optic Q-switcher and a frequency-doubling crystal in type
Keywords： KTP green laser electro-optic Q-switcher frequency-doubling
Sb2Te3 topological insulator for 52 nm wideband tunable Yb-doped passively Q-switched Research
Tao Wang, Qiang Yu, Kun Guo, Xinyao Shi, Xuefen Kan, Yijun Xu, Jian Wu, Kai Zhang, Pu Zhou,wujian15203@163.com,kzhang2015@sinano.ac.cn
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 3, Pages 287-436 doi: 10.1631/FITEE.2000577
Keywords： 拓扑绝缘体；Sb2Te3；光纤激光；被动调Q激光；波长可调谐激光
The Round-metal-resonator CO2 Laser with Spiral Flow
Li Zaiguang,Gong Wei
Strategic Study of CAE 2001, Volume 3, Issue 1, Pages 58-61
The transverse flow, coaxial flow and diffusion cooling are the current types of high power CO2 laser for industrial applications. A new CO2 laser is being developed. Its round resonator consists of a number of equally-spaced and coaxially-mounted metal cavity units. Each unit has several channels for gas flow and discharge. The discharge ignited at the interface of the flow channel and the cavity is blown into the cavity, where the particles are excited and gain forms. The electrode structure, metal wall action on the active medium cooling, and the gain distribution have been studied. It is shown that the multi-channel blown-in discharge, intercavity spiral flow and adjacent unit rotating certain angle facilitate the circular uniformity of gain distribution. As a result, a new CO2 laser with high beam quality and compactness can be obtained.
Keywords： CO2 laser round-metal-resonator spiral flow beam quality
Vector soliton and noise-like pulse generation using a Ti3C2 MXene material in a fiber laser Research
Shuai Wang, Lei Li, Yu-feng Song, Ding-yuan Tang, De-yuan Shen, Lu-ming Zhao,sdulilei@gmail.com,lmzhao@ieee.org
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 3, Pages 287-436 doi: 10.1631/FITEE.2000033
Keywords： 矢量孤子；类噪声脉冲；MXene；光纤激光器
A New Two_dimensional Linear Discriminant Analysis Algori thmBased on Fuzzy Set Theory
Zheng Yujie,Yang Jingyu,Wu Xiaojun, Li Yongzhi
Strategic Study of CAE 2007, Volume 9, Issue 2, Pages 49-53
2DLDA algorithm is based on2D matrices and overleaps the step of transforming the matrices into the corresponding vectors,which is done on conventional LDA algorithm.However,performance of recognition rate may always be degraded by the overlapping(outlier)samples et al in the field of pattern recognition.How to avoid these shortcomings and extract optimal features to improve the performance of recognition is a key step. In this paper,a new2DLDA algorithm,named fuzzy2DLDA,is proposed.Fuzzy k-nearest neighbour(FKNN) is implemented first to achieve the distribution information of original samples represented with fuzzy membership degrees and is incorporated into the process of feature extraction.The proposed algorithm inherits the virtue of conventional2DLDA and suppresses the shortcoming resulted by overlappin g(outlier)samples et al. Experimental results on AT&T face database demonstrate rec ognition rates of the proposed algorithm outperform that of conventional2DLDA and fisherface.
Keywords： two-dimensional linear discriminant analysis(2DLDA) fuzzy two-dimensional linear
Several New Semiconductor Lasers and Status, Challenges and Insights of Related Industries
Wei Xin, Li Ming, Li Jian, Wang Chao, Li Chuanchuan
Strategic Study of CAE 2020, Volume 22, Issue 3, Pages 21-28 doi: 10.15302/J-SSCAE-2020.03.004
As the basis of the whole laser industry, the semiconductor laser industry is not only large-scaled but also has strong radiation and driving capacities. The semiconductor lasers are widely used in industrial, military, and living consumption fields such as optical communication, optical information processing, novel manufacturing, laser display, and biological and medical sensing. To adapt to the gradually expanding application range and satisfy the new requirements of different application scenarios, various new mechanisms, concepts, and structures have been introduced into the semiconductor laser industry through interdisciplinary penetration, greatly optimizing the wavelength coverage, beam quality, device volume, power consumption, modulation speed, and output power of the semiconductor lasers. This paper introduces several rapidly developed new semiconductor lasers by comparing their physical connotation, structural design, and preparation methods. Considering the current development status of related industries in China, we suggest that the development of the semiconductor laser industry should be closely combined with industrial application. The performance of the semiconductor lasers should be optimized in a closed-loop manner relying on the market capacity and the strong systematic development ability in China to promote the key technologies. New principles, structures, and processes should be continually introduced into this industry through interdisciplinary integration. Meanwhile, using the policy-oriented advantages in China, we suggest to increase investment in vertical external cavity surface emitting lasers, micro-nano lasers, and topological insulator lasers and conduct mass production and controllable production, thus to seize the leading position in international competition in the related fields.
Study on Diode-pumped Solid-state Laser with High Pulsed Repetition Rate
Zhou Shouhuan,Jiang Dongsheng
Strategic Study of CAE 2000, Volume 2, Issue 1, Pages 53-56
The experimental results were reported on diode-pumped solid state laser with 1 kHz high pulsed repetition rate: 43 mj of single output pulse energy, lower order mode, 43% of light-light conversion efficiency. For diode end pumping, it is quite easy to obtain high efficiency and high output beam quality, the cooling configuration of laser media is simple, too. With fine design, the thermal effect induced by moderate power could be within control.
Based on rate equation analysis, the influences of various characters on output performance were discussed and the optimum experimental parameters were studied, such as the focal size of pump light. In general, the smaller focal size, the lower pumping power threshold. But the output laser power was not maximum. The optimum focal size should be determined according to the actual output laser power.
Keywords： pulsed solid-state laser end-pumping high repetition rate
A novel heavy haul train on road safety status monitoring technique based on fiber laser sensors
Du Yanliang,Zhang Wentao
Strategic Study of CAE 2009, Volume 11, Issue 10, Pages 61-66
A novel heavy haul train safety status monitoring technique based on the fiber laser sensors was proposed in this paper. The principles of the fiber laser sensors were introduced and the schematic of the heavy haul train safety status monitoring was given. The key technologies of the monitoring system were focused, such as the high-performance fiber laser accelerometers, the high-accuracy wavelength demodulation technique, and the in-danger status recognizing technique. The systematic chematic was also proposed.
Keywords： fiber laser heavy haul train safety status on road
Yongan Feng, Mucong Deng, Siwei Song, Sitong Chen, Qinghua Zhang, Jean’ne M. Shreeve
Engineering 2020, Volume 6, Issue 9, Pages 1006-1012 doi: 10.1016/j.eng.2020.01.013
The creation of high-performance energetic materials with good mechanical sensitivities has been a great challenge over the past decades, since such materials have huge amounts of energy and are thus essentially unstable. Here, we report on a promising fused-ring energetic material with an unusual twodimensional (2D) structure, 4-nitro-7-azido-pyrazol-[3,4-d]-1,2,3 triazine-2-oxide (NAPTO), whose unique 2D structure has been confirmed by single-crystal X-ray diffraction. Experimental studies show that this novel energetic compound has remarkably high energy (detonation velocity D = 9.12 km∙s−1; detonation pressure P = 35.1 GPa), excellent sensitivities toward external stimuli (impact sensitivity IS = 18 J; friction sensitivity FS = 325 N; electrostatic discharge sensitivity EDS = 0.32 J) and a high thermal decomposition temperature (203.2 °C), thus possessing the dual advantages of high energy and low mechanical sensitivities. To our knowledge, NAPTO is the first fused-ring energetic material with 2D layered crystal stacking. The stabilization mechanism toward external stimuli were investigated using molecular simulations, and the theoretical calculation results demonstrate that the ultraflat 2D layered structure can buffer external mechanical stimuli more effectively than other structures by converting the mechanical energy acting on the material into layer sliding and compression. Our study reveals the great promise of the fused-ring 2D layered structure for creating advanced energetic materials.
Keywords： Energetic materials Fused heterocycles 2D layered structure High energy Stability Sensitivity
Xu Zuyan
Strategic Study of CAE 1999, Volume 1, Issue 2, Pages 72-77
The age of optoelectronics is the consequence of rapid evolution and mutual integration of the fields of micro-electronics, laser technology and material science. The appearance of optical fibers and laser diodes in the 1960s, one major contribution of optoelectronic technology to information industry, has led to the advent of optoelectronic communications. In the 1990s, great advances in optoelectronic crystals and breakthroughs in laser diode technology have made all-solid-state lasers a practical realization. As a consequence, this will enable optoelectronics to make its further contribution to more national pillar industries in the first half of the next century, in various aspects like material processing in advanced manufacturing, optical storage in information technology, laser displays in entertainment, laser fusion power station, nuclear fission material processing, upgrading of laser weapons, etc.
Keywords： optoelectronic crystals all-solid-state lasers material processing optical storage laser displays laser fusion
Title Author Date Type Operation
Preparation of ultrathin ReS2 nanosheets and their application to Q-switched Er-doped fiber
Junshan He, Guohua Zeng, Shaoxian Liu, Haiming Lu, Ruixian Xie, Jingjing Qi, Lili Tao, Bo Zhou,taoll@gdut.edu.cn,zhoubo@scut.edu.cn
Journal Article
Passive mode-locked Er-doped fiber laser pulse generation based on titanium disulfide saturable absorber
Xinxin Shang, Linguang Guo, Huanian Zhang, Dengwang Li, Qingyang Yue,huanian_zhang@163.com,qingyangyue@sdnu.edu.cn
Journal Article
Traditional soliton erbium-doped fiber laser with InSe as saturable absorber
Xiaojuan Liu, Guomei Wang, Mingxiao Zhu, Kezhen Han, Wenfei Zhang, Huanian Zhang,zhangwenfei@sdut.edu.cn,huanian_zhang@163.com
Journal Article
2.3 μm nanosecond passive Q-switching of an LD-pumped Tm:YLF laser using gold nanorods as a saturable
Fu-yan Wu, Shi-qiang Wang, Hai-wei Chen, Hai-tao Huang,wfyjsnu@126.com,wsq274412@126.com,haiwei0819@163.com,hht840211@163.com
Journal Article
Generation of noise-like pulses and soliton rains in a graphene mode-locked erbium-doped fiber ring laser
Pinghua Tang, Mulin Luo, Ting Zhao, Yuliang Mao,pinghuatang@xtu.edu.cn,1011773923@qq.com,zthaza@126.com,ylmao@xtu.edu.cn
Journal Article
A New Type of Q-switched and Frequency-doubling Green Laser
Chen Fei,Huo Yujing,He Shufang,Feng Lichun
Journal Article
Sb2Te3 topological insulator for 52 nm wideband tunable Yb-doped passively Q-switched
Tao Wang, Qiang Yu, Kun Guo, Xinyao Shi, Xuefen Kan, Yijun Xu, Jian Wu, Kai Zhang, Pu Zhou,wujian15203@163.com,kzhang2015@sinano.ac.cn
Journal Article
Vector soliton and noise-like pulse generation using a Ti3C2 MXene material in a fiber laser
Shuai Wang, Lei Li, Yu-feng Song, Ding-yuan Tang, De-yuan Shen, Lu-ming Zhao,sdulilei@gmail.com,lmzhao@ieee.org
Journal Article
A New Two_dimensional Linear Discriminant Analysis Algori thmBased on Fuzzy Set Theory
Zheng Yujie,Yang Jingyu,Wu Xiaojun, Li Yongzhi
Journal Article
Several New Semiconductor Lasers and Status, Challenges and Insights of Related Industries
Wei Xin, Li Ming, Li Jian, Wang Chao, Li Chuanchuan
Journal Article
Study on Diode-pumped Solid-state Laser with High Pulsed Repetition Rate
Zhou Shouhuan,Jiang Dongsheng
Journal Article
A novel heavy haul train on road safety status monitoring technique based on fiber laser sensors
Du Yanliang,Zhang Wentao
Journal Article
Construction of an Unusual Two-Dimensional Layered Structure for Fused-Ring Energetic Materials with High Energy and Good Stability
Yongan Feng, Mucong Deng, Siwei Song, Sitong Chen, Qinghua Zhang, Jean’ne M. Shreeve
Journal Article
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