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Internal Optical Parametric Oscillator with SBS Phase Conjugate Resonator

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Chinese Journal of Lasers 1999年第4期8卷 3-5页

作者： JU Youlun LIU Qiang YAO Baoquan YU Xin DU Xiaojun WANG Qi (National Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin 150001, China) received March, 19, 1999 revised manuscript received May 10, 1999 哈尔滨工业大学可调谐（气体）激光技术国防科技重点实验室黑龙江哈尔滨

It is reported a novel optical parametric oscillator with KTP as medium crystal inside a Nd∶YAG phase conjugate resonator. In the phase conjugate resonator, the laser beam quality is promoted by phase conjugate mirror, which is realized by stimulated Brillouin scattering effect, and Q switch is generated simultaneously. With this device, the laser output at 1.57 μm with 15 mJ energy and 8 ns pulse width is obtained.

关键词： internal optical parametric oscillateor SBS phase conzugate resonator

Glass ceramic of high hardness and fracture toughness developed from iron-rich wastes

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Acta Metallurgica Sinica(English Letters) 2009年第3期22卷 181-190页

作者： Weixin HAN Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China manuscript received 27 October 2008 in revised form 17 November 2008 [a]Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China

A study has been carried out on the feasibility of using high iron content wastes, generated during steel making, as a raw material for the production of glass ceramic. The iron-rich wastes were mixed and melted in different proportions with soda-lime glass cullet and sand. The devitrification of the parent glasses produced from the different mixtures was investigated using differential thermal analysis, X-ray diffraction, and scanning electron microscopy. The mechanical properties of the glass-ceramic were assessed by hardness and indentation fracture toughness measurement. A glass ceramic with mixture of 60 wt pct iron-rich wastes, 25 wt pct sand, and 15 wt pct glass cullet exhibited the best combination of properties, namely, hardness 7.9 CPa and fracture toughness 3.75 MPa·m^1/2, for the sake of containing magnetite in marked dendritic morphology. These new hard glass ceramics are candidate materials for wear resistant tiles and paving for heavy industrial floors.

关键词： Iron-rich wastes Glass ceramics Vitrification Hardness

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Automatic　Analysis　of　the　Phase　Object　Using　Projection　Moire　Deflectometry

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Chinese Journal of Lasers 1995年第6期B4卷 521-529页

作者： WANG Ming(Basic Department, Nanchang University, Nanchang 330029, China)received 22 March 1995 revised manuscript received 5 June 1995 Nanchang Univ Nanchang China

ＡｕｔｏｍａｔｉｃＡｎａｌｙｓｉｓｏｆｔｈｅＰｈａｓｅＯｂｊｅｃｔＵｓｉｎｇＰｒｏｊｅｃｔｉｏｎＭｏｉｒｅＤｅｆｌｅｃｔｏｍｅｔｒｙ￥ＷＡＮＧＭｉｎｇ（ＢａｓｉｃＤｅｐａｒｔｍｅｎｔ，ＮａｎｃｈａｎｇＵｎｉｖｅｒｓｉ... 详细信息

ＡｕｔｏｍａｔｉｃＡｎａｌｙｓｉｓｏｆｔｈｅＰｈａｓｅＯｂｊｅｃｔＵｓｉｎｇＰｒｏｊｅｃｔｉｏｎＭｏｉｒｅＤｅｆｌｅｃｔｏｍｅｔｒｙ￥ＷＡＮＧＭｉｎｇ（ＢａｓｉｃＤｅｐａｒｔｍｅｎｔ，ＮａｎｃｈａｎｇＵｎｉｖｅｒｓｉｔｙ，Ｎａｎｃｈａｎｇ３３００２９...

关键词： projection moire deflectometry phase object

Upconversion　Fluorescence　of　Er2O3　Doped　BaF2-TeO2　and　PbF1-TeO2　Oxyhalide　Tellurite　Glasses

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Chinese Journal of Lasers 1995年第6期B4卷 557-562页

作者： HU Lin JIANG Zhonghong HU Wentao SONG Xiuyu(Shanghai Indstitute of Optics and Fine Mechanics, Academia Sinica, O. for 800-216, Shanghai 201800, China)received 28 Mar. 1995 revised manuscript received 6 June 1995 Shanghai Inst of Optics and Fine Mechanics Academia Sinica Shanghai China

ＵｐｃｏｎｖｅｒｓｉｏｎＦｌｕｏｒｅｓｃｅｎｃｅｏｆＥｒ２Ｏ３ＤｏｐｅｄＢａＦ２－ＴｅＯ２ａｎｄＰｂＦ１－ＴｅＯ２ＯｘｙｈａｌｉｄｅＴｅｌｌｕｒｉｔｅＧｌａｓｓｅｓ￥ＨＵＬｉｎ；ＪＩＡＮＧＺｈｏｎｇｈｏｎｇ；ＨＵＷｅ... 详细信息

ＵｐｃｏｎｖｅｒｓｉｏｎＦｌｕｏｒｅｓｃｅｎｃｅｏｆＥｒ２Ｏ３ＤｏｐｅｄＢａＦ２－ＴｅＯ２ａｎｄＰｂＦ１－ＴｅＯ２ＯｘｙｈａｌｉｄｅＴｅｌｌｕｒｉｔｅＧｌａｓｓｅｓ￥ＨＵＬｉｎ；ＪＩＡＮＧＺｈｏｎｇｈｏｎｇ；ＨＵＷｅｎｔａｏ；ＳＯＮＧＸｉｕｙｕ...

关键词： upconversion fluorescence oxyhalide tellurite glass Er3+ dopant

Signal Demultiplexing from an 8 .2 ×2.5 Gbs OTDM Data Stream Using NOLM:Demonstration and Bit Error Rate Measurement

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Chinese Journal of Lasers 1999年第4期8卷 3-5页

作者： YAO Minyu ZHANG Jianfeng WU Jian CHEN Minghua WANG Dapeng LOU Caiyun GAO Yizhi ZHOU Bingkun (Department of Electronic Engineering, Tsinghua University, Beijing 100084, China) received Sep. 24, 1998 revised manuscript received Jan. 22, 1999 清华大学电子工程系北京 100084 清华大学电子工程系北京

It is presented the experiment of all optical demultiplexing of one 2.5 Gb/s channel from an 8×2.5 Gb/s OTDM data stream using nonlinear optical loop morror with 3 km dispersion shifted fiber. Bit error rate (BER) of the demultiplexed channel is measured. A BER of 10 -11 is achieved and the power penalty is only 1.4 dB when BER is 10 -9 .

关键词： optical time division multiplexing demultiplexing nonlinear optical loop mirror bit error rate

Investigation　of　the　Excitation　of　the　Static　GaseousLasers　by　the　Combined　Microwave　and　DC　Discharges

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Chinese Journal of Lasers 1995年第6期B4卷 481-488页

作者： WANG Yumin ZHENG Hui LOU Qihong WANG Runwen(Shanghai Institute of Optics and Fine Mechancis , Academia Sinica,P. O. Box 800-211, Shanghai 201800,China)(received 20 feb. 1995 revised manuscript recevied 21 April 1995)(Supported by National Natural Scienc Shanghai Inst of Optics and Fine Mechanics Academia SInica Shanghai China

ＩｎｖｅｓｔｉｇａｔｉｏｎｏｆｔｈｅＥｘｃｉｔａｔｉｏｎｏｆｔｈｅＳｔａｔｉｃＧａｓｅｏｕｓＬａｓｅｒｓｂｙｔｈｅＣｏｍｂｉｎｅｄＭｉｃｒｏｗａｖｅａｎｄＤＣＤｉｓｃｈａｒｇｅｓ￥ＷＡＮＧＹｕｍｉｎ；ＺＨＥＮＧＨｕｉ... 详细信息

ＩｎｖｅｓｔｉｇａｔｉｏｎｏｆｔｈｅＥｘｃｉｔａｔｉｏｎｏｆｔｈｅＳｔａｔｉｃＧａｓｅｏｕｓＬａｓｅｒｓｂｙｔｈｅＣｏｍｂｉｎｅｄＭｉｃｒｏｗａｖｅａｎｄＤＣＤｉｓｃｈａｒｇｅｓ￥ＷＡＮＧＹｕｍｉｎ；ＺＨＥＮＧＨｕｉ；ＬＯＵＱｉｈｏｎｇ；ＷＡＮＧＲｕ...

关键词： gaseous lasers microwave pumping

Double-peak Splitting in High-order Harmonics Generation

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Chinese Journal of Lasers 2000年第5期 76-80页

作者： WANG Yingsong LIU Yaqing YANG Xiaodong XU Zhizhan (Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, The Chinese Acadmy of Sciences, Shanghai 201800,China) received Jan. 4, 2000 revised manuscript received feb.

When the intensity of the driving pulse is much higher than the saturation intensity of the media involved, the double peak splitting in frequency domain emerges in the generated high order harmonic spectra. The possible origins of this splitting are carefully investigated. The ionization of the gas media and the propagation effect of harmonic field are the main reason for the double peak splitting observed.

关键词： strong field high order harmonic generation line splitting

Effects of the Composition of Electrodeposited Fe-Ni-P Alloy on the Thermostability and Magnetic Properties

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Journal of Materials Science & Technology 1997年第2期13卷 137-140页

作者： Chenghui GAO Baiyang ZHOU (Institute for Materials Research, Fuzhou University, Fuzhou 350002, China)(manuscript received feb.uary 22, 1996, in revised form June 3, 1996) Institute for Materials Research Fuzhou University Fuzhou 350002 China

The magnetic properties, structure defects of electrodeposited Fe-Ni-P alloys with various compositions and the thermostability at amorphous state have been studied by DSC, positron annihilation and electronic integrating instrument methods. The results show that the thermostability of amorphous Fe-Ni-P alloys increases with Fe content. Emergence and recrystallization of stable phases defer as the P content of the coating increases. The minimum H-c, B-r and P-h occur at 9.4 P (wt pet) content. Maximum H-c, B-r and P-h occur at the weight ratio of Fe to Ni equaling to 1/9.

关键词： Ni Fe Effects of the Composition of Electrodeposited Fe-Ni-P Alloy on the Thermostability and Magnetic Properties

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控制离散非线性系统中不稳定不动点的一种方法

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物理学报 1999年第10期48卷 1804-1809页

作者：周平重庆邮电学院信息与计算科学系重庆400065

提出了控制离散非线性系统中不稳定不动点的一种新方法，同时给出了组合系数和反馈系数的选取方法．将此方法应用到Ｌｏｇｉｓｔｉｃ映射和类Ｈｅｎｏｎ映射中，取得了较好的控制结果．

关键词：非线性系统不动点混沌离散系统不稳定控制

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