机构

• 长春光学精密机械与物... [3]

采集方式

• OAI收割 [3]

内容类型

• 会议论文 [3]

发表日期

• 2012 [1]
• 2005 [2]

学科主题

筛选

浏览/检索结果: 共3条，第1-3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 An engineering analysis and research on center frame structure using casting of vehicle radar antenna pedestal (EI CONFERENCE) 会议论文  OAI收割 2012 International Conference on Industrial Design and Mechanical Power, ICIDMP 2012, July 10, 2012 - July 11, 2012, Huangshan, China 作者:  Li Y.;  Liu W.;  Li Y.;  Li Y.;  Li Y. 收藏  |  浏览/下载：26/0  |  提交时间：2013/03/25 According to the usage of vehicle radar antenna pedestal center frame  this article analyzes and compares the structure characteristic of welding and casting. We decide to adopt the casting structure and use special casting material ductile iron QT450-10. And we describe the casting material ductile iron QT450-10. Based on the center frame of using conditions  we analyze the deformation and stress of center frame by the finite element analysis software. The design is in line with the material allowable requirements and to meet the requirements of the system stiffness. (2012) Trans Tech Publications  Switzerland.   980nm high power Vertical External-cavity Surface-emitting Semiconductor Lasers (VECSEL) (EI CONFERENCE) 会议论文  OAI收割 Optoelectronic Materials and Devices for Optical Communications, November 7, 2005 - November 10, 2005, Shanghai, China 作者:  Ning Y.-Q.;  Wang L.-J.;  Wang L.-J.;  Qin L. 收藏  |  浏览/下载：14/0  |  提交时间：2013/03/25 We describe the design  fabrication  and calculation characteristics of the 980nm high-power diode-pumped vertical external-cavity surface-emitting laser(VECSEL).From our calculation  the VECSEL with active region of InGaAs/GaAsP/AlGaAs system can operate near 1w in a single transverse mode.   Vertical-external-cavity surface-emitting lasers operating at different wavelength: Design, numerical simulation, and characteristics (EI CONFERENCE) 会议论文  OAI收割 Optoelectronic Materials and Devices for Optical Communications, November 7, 2005 - November 10, 2005, Shanghai, China 作者:  Qin L.;  Jiang H.;  Wang L.;  Wang L.;  Wang L. 收藏  |  浏览/下载：21/0  |  提交时间：2013/03/25 We describe design  numerical simulation and characteristics of high-power optical pumped VECSELs at different wavelength (980nm  and 1300nm). The device design realizes the integrating diode-pumped lasers with vertical-cavity surface-emitting laser structure  drawing on the advantages of both. With periodical gain element structure  optical pumped VECSEL is scalable to watt level output. The characteristics such as threshold condition and output power are calculated theoretically. An optimum number of quantum wells and external mirror reflectivity are obtained from the calculation results  and the thermal characteristic is also considered. Finally the calculation results also predict high output power in this kind of device structure.