机构

• 半导体研究所 [12]
• 长春光学精密机械与物... [2]

采集方式

• OAI收割 [14]

内容类型

• 会议论文 [14]

发表日期

• 2010 [2]
• 2008 [5]
• 2006 [1]
• 2005 [4]
• 2001 [2]

学科主题

• 光电子学 [11]
• 半导体材料 [1]

筛选

浏览/检索结果: 共14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提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Theoretical analysis of emission characteristics of second-order distributed feedback semiconductor lasers (EI CONFERENCE) 会议论文  OAI收割 Semiconductor Lasers and Applications IV, October 18, 2010 - October 19, 2010, Beijing, China 作者:  Liu Y.;  Liu Y.;  Qin L.;  Liu Y.;  Wang L. 收藏  |  浏览/下载：13/0  |  提交时间：2013/03/25 Based on the modified coupled-wave theory  the emission characteristics  including threshold gain  photon density distribution in the cavity  and external differential quantum efficiency for second-order DFB lasers are investigated. Numerical simulation results show that for given device structure with wavelength of 1.55 m  the feedback coupling coefficient and the surface radiation coupling coefficient of the second-order grating have great influence on the emission characteristics of the device. By choosing different duty cycles of the grating  we can change the two coupling coefficients  which affect the emission characteristics. For an overall consideration  an optimal duty cycle of 0.43 is chosen. The optimized results show that the device works without degeneracy modes and spatial burning hole. Besides  the side-mode suppress ratio (SMSR) and external differential quantum efficiency reach as high as 42 dB and 47%  respectively. 2010 SPIE.   Measuring instrument for radial composite deviations of high-precision master gear (EI CONFERENCE) 会议论文  OAI收割 6th International Symposium on Precision Engineering Measurements and Instrumentation, August 8, 2010 - August 11, 2010, Hangzhou, China 作者:  Zhang Y.;  Wang L.;  Wang L.;  Wang L. 收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25 During double flank rolling composite detection  the radial composite deviations of master gears has been existed and transferred to the measured gear by the primary harmonic curve. In order to improve measurement accuracy  a measuring instrument is developed for radial composite deviations of high-precision master gear in the paper. This instrument uses the structure of spring-suspend swing span to overcome the shortcomings of large rotation errors  low sensitivity  low resolution and large measuring force appearing in the traditional combination-type gear inspection instrument. Artificial intelligence technology is used to improve the efficiency and accuracy of this instrument. The result is that the measuring apparatus is able to meet the requirement and improve efficiency through the measuring experiments on master gears of precision grade 2 with modulus 2 mm and 3 mm  respectively. 2010 SPIE.   Growth of GaSb and GaInAsSb layers for thermophotovolatic cells by liquid phase epitaxy - art. no. 68411E 会议论文  OAI收割 conference on solid state lighting and solar energy technologies, beijing, peoples r china, nov 12-14, 2007 作者:  Yin ZG;  Zhang XW 收藏  |  浏览/下载：46/0  |  提交时间：2010/03/09 thermophotovoltaic cell   Fabrication and characterization of TO packaged high-speed laser modules - art. no. 682407 会议论文  OAI收割 conference on semiconductor lasers and applications iii, beijing, peoples r china, nov 12-13, 2007 Wen, JM; Liu, Y; Wang, X; Yuan, HQ; Xie, L; Zhu, NH 收藏  |  浏览/下载：39/0  |  提交时间：2010/03/09 equivalent circuits  FP laser modules  DFB laser modules  VCSEL modules  Through hole (TO) packaging   Research on color matching of LED backlight for large-color-gamut LCD application - art. no. 68410Y 会议论文  OAI收割 conference on solid state lighting and solar energy technologies, beijing, peoples r china, nov 12-14, 2007 Liang, M; Fan, MN; Guo, DB; Liu, GY; Wang, GH; Yang, FH; Wang, LC; Zeng, YP; Li, JM 收藏  |  浏览/下载：42/0  |  提交时间：2010/03/09 LED backlight  three-basic-color  color gamut  relative spectrum distribution (RSD)   Native deep level defects in ZnO single crystal grown by CVT method - art. no. 68410I 会议论文  OAI收割 conference on solid state lighting and solar energy technologies, beijing, peoples r china, nov 12-14, 2007 Zhao, YW; Zhang, F; Zhang, R; Dong, ZY; Wei, XC; Zeng, YP; Li, JM 收藏  |  浏览/下载：43/0  |  提交时间：2010/03/09 zinc oxide  defect  vacancy   Study of Si/SiO2 hybrid antireflective coatings on SLD prepared by DSEBET - art. no. 69842P 会议论文  OAI收割 6th international conference on thin film physics and applications, shanghai, peoples r china, sep 25-28, 2007 Sun, MX; Tan, MQ; Zhao, M 收藏  |  浏览/下载：36/0  |  提交时间：2010/03/09 antireflective coatings  superluminescent diodes  double source electron beam evaporation technology   Optical and structural properties of ZnO films grown on Si(100) substrates by MOCVD - art. no. 60290G 会议论文  OAI收割 20th congress of the international-commission-for-optics, changchun, peoples r china, aug 21-26, 2005 Shen, WJ; Duan, Y; Wang, J; Wang, QY; Zeng, YP 收藏  |  浏览/下载：95/18  |  提交时间：2010/03/29 ZnO  MOCVD  thermal annealing  photoluminescence  x-ray diffraction  atomic force microscopy  PULSED-LASER DEPOSITION  THIN-FILMS  PHOTOLUMINESCENCE  MECHANISMS  EPITAXY  CVD  SI   High-speed photodetector characterization using tunable laser by optical heterodyne technique - art. no. 60200A 会议论文  OAI收割 conference on optoelectronic materials and devices for optical communications, shanghai, peoples r china, nov 07-10, 2005 San, HS; Wen, JM; Xie, L; Zhu, NH; Feng, BX 收藏  |  浏览/下载：78/16  |  提交时间：2010/03/29 optical heterodyne technique  ultra-wideband frequency response  different frequency photodetector  FREQUENCY-RESPONSE MEASUREMENT  MULTIMODE WAVE-GUIDE   Compact polarization-insensitive arrayed waveguide grating based on SOI material 会议论文  OAI收割 conference on optoelectronic devices and integration, beijing, peoples r china, nov 08-11, 2004 Fang, Q; Li, F; Liu, YL 收藏  |  浏览/下载：261/72  |  提交时间：2010/03/29 arrayed waveguide grating  compact  polarization-insensitive  silicon on insulator  SILICON-ON-INSULATOR  WAVELENGTH DEMULTIPLEXER  MULTIPLEXER  INP  SI