2篇
您的检索式：作者名="Kechang Song"
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | High wall-plug efficiency 808-nm laser diodes with a power up to 30.1 W显示文摘A very highly efficient InGaAlAs/AlGaAs quantum-well structure was designed for 808 nm emission,and laser diode chips 390-μm-wide aperture and 2-mm-long cavity length were fabricated.Special pretreatment and passivation for the chip facets were performed to achieve improved reliability performance.The laser chips were p-side-down mounted on the AlN submount,and then tested at continuous wave(CW)operation with the heat-sink temperature setting to 25℃using a thermoelectric cooler(TEC).As high as 60.5%of the wall-plug efficiency(WPE)was achieved at the injection current of 11 A.The maximum output power of 30.1 W was obtained at 29.5 A when the TEC temperature was set to 12°C.Accelerated life-time test showed that the laser diodes had lifetimes of over 62111 h operating at rated power of 10 W. | Zhanqiang Ren Qingmin Li Bo Li Kechang Song | 2020 | Journal of Semiconductors2020，41，3： | 3 |
| 2 | Information Network System for WDCDS/NCSDI显示文摘World Data Center-D for Seismology(WDCDS)is a member of the World Data Center System under ICSU and is one of the nine World Data Centers located in China(WDC-D).During the period from 1993 to 1996,an information network system,called CSDInet,was developed in National Center for Seismic Data and Information(NCSDI)and has become the basic technical supporting system for WDC-D for Seismology.CSDInet consists of four basic parts:computer network center,LAN(Local Area Network),link to Internet,and nationwide PSTN(with dialing-up telephone line)user network.In this paper a 'multi-layer multi-mode' management of data flow for this system will be explained and the data and information services will be described. | Zhao Zhonghe,Chen Huizhong,Tian Feng,Li Weidong,Wang Song,Zhou Kechang,Zhao Wei,and Huang ZhibinNational Center for Seismic Data and Information,SSB,Beijing 100045,China | 1997 | Earthquake Research in China1997，11，2： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员