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Upconversion of communication band light carrying orbital angular momentum using quasi-phase-matching 会议论文
Beijing, PEOPLES R CHINABeijing, PEOPLES R CHINA, JUL 08-11, 2018JUL 08-11, 2018
作者:  Liu, Lei;  Wang, Hongyan;  Ning, Yu;  Zhao, Lingwei;  Zhao, Wei
收藏  |  浏览/下载：20/0  |  提交时间：2019/08/23
Optimization of microchannel cooler of high power diode laser array package 会议论文
components and packaging for laser systems iii 2017, san francisco, ca, united states, 2017-01-31
作者:  Wu, Dihai;  Zhang, Pu;  Nie, Zhiqiang;  Liang, Xuejie;  Wang, Jingwei
收藏  |  浏览/下载：15/0  |  提交时间：2017/06/08
Dynamic instabilities of self-excited oscillation in optical ring resonator 会议论文
作者:  Huang, Jianguo;  Dong, Bin;  Cai, Hong;  Gu, Yuandong;  Wu, Jiuhui
收藏  |  浏览/下载：7/0  |  提交时间：2019/12/02
Influence of the helium-pressure on diode-pumped alkali-vapor laser 会议论文
2nd International Symposium on Laser Interaction with Matter, LIMIS 2012, September 9, 2012 - September 12, 2012, Xi'an, Shaanxi, China
Gao F.; Chen F.; Xie J.-J.; Zhang L.-M.; Li D.-J.; Yang G.-L.; Guo J.
收藏  |  浏览/下载：17/0  |  提交时间：2014/05/15
A Kinetic Study of Rhodamine 123 Pumping by P-glycoprotein 会议论文
the 1st asia pacific issx meeting, 韩国, 2006-5-24
杨凌; 王玉林; WilfredD.Stein
收藏  |  浏览/下载：10/0  |  提交时间：2011/07/11
Study on LD-pumped Nd:YAG laser cutter (EI CONFERENCE) 会议论文
ICO20: Lasers and Laser Technologies, August 21, 2005 - August 26, 2005, Changchun, China
Cui J.; Zhao J.; Fan Z.; Zhao C.; Bi Y.; Zhang J.; Niu G.; Shi Z.; Pei B.; Zhang G.; Xue Y.; Qi Y.
收藏  |  浏览/下载：14/0  |  提交时间：2013/03/25
The theory of laser cutter and the technology neck is analyzed. We can conclude that it is almost impossible to deal with the waste thick silicon wafers which are yielded in producing silicon wafers by conventional eroding or diamond cutting  when the cutting velocity equals 100mm/min  while it is also unperfected with ecumenical laser cutter without good beam quality or precise laseroptics system. It is represented that high average power and high repetition rate laser with good beam quality and precise laseroptics system are pivotal to obtain excellent cutting effect such as thick groove depth  double-layer 0.75mm thick silicon wafer can be penetrated.. The cross section is fine and the groove is narrow  rapid cutting speed  the cutting quality meets the expecting demand.  fine kerf section without considering the effect of technique. Considering laser medium thermal lens effect and thermal focal length changing with pumping power  using plano-convex high reflectivity mirror as the back cavity mirror to compensate the heat lens influence  a /4 waveplate to compensate heat -induced birefraction  utilize the Nd:YAG self- aperture effect  more than 50 W average power 1.064 um IR output is obtained with beam quality factor (M2) equals 3.19. Through the LD-Pumped Nd:YAG laser cutter we developed with short focus length negative spherical aberration focusing lens  double axis linear step motor positioning system  suitable beam expander multiplying factor  appropriate diameter of exit beam aperture  proper repetition rate  when the cutting velocity equals 400mm/min  0.75mm thick silicon wafer can be penetrated  
Research on LD-Pumped dual wavelength Nd:YAG Laser with high beam quality for machining (EI CONFERENCE) 会议论文
ICO20: Lasers and Laser Technologies, August 21, 2005 - August 26, 2005, Changchun, China
Cui J.; Fan Z.; Zhao C.; Zhang J.; Niu G.; Shi Z.; Pei B.; Zhang G.; Xue Y.
收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25
Considering laser medium thermal lens effect and thermal focal length changes with pumping power  conventionally  lasers are designed to operate in the middle of thermal stable zones  where the fundamental mode size is insensitive to thermal perturbation  while this method seems impossible when large fundamental mode size is required. Through self-select mode cavity  lasers are designed to work at the border of stable zone instead  where large fundamental mode size in gain media can be reached. With increase of pumping power and self-aperture mode-selective effect  mode size would grow up automatically to a certain value suitable for monomode resonance. With double 180 W pump modules  acoustic Q-switch and LBO external frequency-doubled  over 28 W which M2 equals 4.5 quasi-CW output green laser and 52W 1.064 um IR output is obtained simultaneity. With the insertion or not of the harmonic separator by footswitch  high beam quality green  IR  and green IR lasers are obtained conveniently.  

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