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浏览/检索结果: 共15条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序作者升序作者降序 A Tunable Mid-Infrared Solid-State Laser with a Compact Thermal Control System 期刊论文  OAI收割 Applied Sciences-Basel, 2018, 卷号: 8, 期号: 6, 页码: 14 作者:  Yu, D. Y.;  He, Y.;  Zhang, K.;  Pan, Q. K.;  Chen, F.   |  收藏  |  浏览/下载：24/0  |  提交时间：2019/09/17 tunable mid-infrared solid-state laser  thermal control  all-fiber  laser  thermoelectric cooling  finite-element analysis  optical  parametric oscillator  optical parametric oscillator  module  Chemistry  Materials Science  Physics   Degradation of high power single emitter laser modules using nanosilver paste in continuous pulse conditions 期刊论文  OAI收割 microelectronics reliability, 2015, 卷号: 55, 期号: 12, 页码: 2532-2541 作者:  Yan, Haidong;  Mei, Yunhui;  Li, Xin;  Zhang, Pu;  Lu, Guo-Quan 收藏  |  浏览/下载：26/0  |  提交时间：2015/12/02 Nanosilver paste  Laser module  Die-attach interface  Pulse mode  Reliability   激光驱动器光机装配规划与仿真验证研究 学位论文  OAI收割 工程硕士, 中国科学院自动化研究所: 中国科学院大学, 2014 汤志鹏 收藏  |  浏览/下载：54/0  |  提交时间：2015/09/02 激光驱动器  光机组件  装配序列规划  仿真验证  laser driver  optical module  assembly sequence planning  simulation   Structural amelioration of 920 nm optically pumped semiconductor vertical external-cavity surface emitting laser (OPS-VECSEL) (EI CONFERENCE) 会议论文  OAI收割 2nd International Conference on Energy, Environment and Sustainable Development, EESD 2012, October 12, 2012 - October 14, 2012, Jilin, China 作者:  Liu Y.;  Liu Y.;  Wang L.;  Wang L.;  Wang L. 收藏  |  浏览/下载：25/0  |  提交时间：2013/03/25 920 nm optically pumped semiconductor vertical external-cavity surface emitting laser (OPS-VECSEL) has an important application in laser display. We constructed and optimized a 920 nm OPS-VECSEL with active region of In0.09Ga0.91As quantum well (QW) system pumped by 808 nm laser diode module. By the finite element method  self-consistent solutions of the semiconductor electronic and optical equations are realized to calculate the characteristics parameters of OPS-VECSEL. The performances of device especially the mode  the threshold and the optical-optical translation efficiency were analyzed by dealing with different number of QWs (1  2 and 3) in one period  QW depth  barrier width  the component and dimension of the non-absorption layer. We chose an improved structure of them. On this basis  we ameliorated the number of QW periods and the simulation showed that in order to obtain high performance device  the choice of the number of QW periods must be cautious. (2013) Trans Tech Publications  Switzerland.   Field-line coupling interference prediction of LCD module in high-power TEA CO2 laser system (EI CONFERENCE) 会议论文  OAI收割 2012 International Conference on Optoelectronics and Microelectronics, ICOM 2012, August 23, 2012 - August 25, 2012, Changchun, China Ge X.; Li X. 收藏  |  浏览/下载：21/0  |  提交时间：2013/03/25 In high power TEA CO2 laser system  liquid crystal display (LCD) module is a key device for display and control functions. Because of laser's harsh electromagnetic environment  LCD module coupled to the electromagnetic interference easily  leading to not work normally. This paper analyzed the interference coupling mechanism. On the basis of the analysis results  LCD module's field-line coupling is calculated by Taylor form's BLT equation. The calculation result is verified by experiment. The results show that  due to the field-line coupling  the data line of LCD module existed interference voltage  interference voltage value is 1V. The interference voltage is larger than the LCD module's noise margin. LCD module must shield the interference. 2012 IEEE.   808nm high-power semiconductor laser therapeutic apparatus based on LPC2138 (EI CONFERENCE) 会议论文  OAI收割 2011 IEEE International conference on Intelligent Computation and Bio-Medical Instrumentation, ICBMI 2011, December 14, 2011 - December 17, 2011, Wuhan, Hubei, China 作者:  Wang B.;  Wang B. 收藏  |  浏览/下载：39/0  |  提交时间：2013/03/25 In this paper  we designed an intelligent 808nm high-power semiconductor laser therapeutic apparatus with the LPC2138 ARM processor. The laser is driven by the digital constant current source module  and the apparatus has good human-machine interaction performance on account of set the parameters intelligently. The function such as operation mode  output power  output pulse width and pulse cycle could be easily set through the TFT touch screen. The application software could transmission the log data to the computer by the USB interface in order to check and study the records later. 2011 IEEE.   A small thickness measurement system based on PSD and FPGA (EI CONFERENCE) 会议论文  OAI收割 3rd International Conference on Measuring Technology and Mechatronics Automation, ICMTMA 2011, January 6, 2011 - January 7, 2011, Shanghai, China 作者:  Guo J.;  Guo J.;  He X. 收藏  |  浏览/下载：32/0  |  提交时间：2013/03/25 Considering that the requirement of industrial manufacture  An AT89S51 singlechip works as the core processor of the system. By two laser triangulation  a small thickness measurement system based on PSD and FPGA is presented. It takes S3931 PSD of one dimension as position detection device  A FPGA produces logic control signals for the whole system  the small displacement is converted to differential voltages  which is made by Hamamatsu in Japan  and after amplification and A/D transformation  8-bit parallel data is send to singlechip from FPGA by external interrupts  and the final calculation results output to the LCD display module. After digital micro meter calibration  we get the small thickness. Experiments show that the detection accuracy of the system is not less than 10um.   Control module of Laser Metal Deposition Shaping system 会议论文  OAI收割 2011 International Conference on Materials Engineering for Advanced Technologies, ICMEAT 2011, Singapore, May 5-6, 2011 作者:  Zhang K(张凯);  Shang XF(尚晓峰);  Liu WJ(刘伟军) 收藏  |  浏览/下载：24/0  |  提交时间：2017/03/13 Laser Metal Deposition Shaping (LMDS)  Rapid prototyping  Rapid manufacturing  Control module  Hardware and software structures   Monolithic integration of electroabsorption modulators and tunnel injection distributed feedback lasers using quantum well intermixing 期刊论文  OAI收割 chinese physics b, 2010, 卷号: 19, 期号: 12, 页码: article no.124215 Wang Y; Pan JQ; Zhao LJ; Zhu HL; Wang W 收藏  |  浏览/下载：62/1  |  提交时间：2011/07/05 electroabsorption modulator  tunnel injection  wide temperature range operation  quantum well intermixing  LIGHT-SOURCE MODULE  LOW-DRIVE-VOLTAGE  DFB LASER  TEMPERATURE-DEPENDENCE  CHIRP  TRANSMISSION  OPERATION  LAYER  DIODE  GB/S   Vertical-external-cavity surface-emitting lasers: Numerical simulation, and characterization (EI CONFERENCE) 会议论文  OAI收割 Optoelectronic Materials and Devices III, October 27, 2008 - October 30, 2008, Hangzhou, China 作者:  Qin L. 收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25 Firstly  the vertical external-cavity surface-emiting lasers (VECSELs) device structure and model was given  and the output characteristic was simple calculated. Then  in experiment  the VECSELs were grown  bonded on to the heat sink  and optically pumped by high-power 808nm diode laser array with fiber output module  the light emission spectra were measured. Finally  The thermal characteristic of the VECSELs was investigated by changing the temperature of the substrate. 2008 SPIE.