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	Temperature characteristics of high power vertical cavity surface emitting lasers (EI CONFERENCE) 会议论文 OAI收割 Semiconductor Lasers and Applications III, November 12, 2007 - November 13, 2007, Beijing, China 作者: Qin L. 收藏 \| 浏览/下载：36/0 \| 提交时间：2013/03/25 By using oxidation confinement technology high power vertical-cavity surface-emitting lasers are fabricated in experiment. The electrical and optical performance characteristics such as threshold current efficiency emission wavelength and output power are measured under continuous wave (CW) condition at room temperature. The maximum output power is up to watt regime at wavelength of about 980nm. The temperature characteristics of the device are investigated experimentally in detail. The variation in lasing threshold current with temperature is studied. The characteristic temperature T0 of the device is derived and the value is about 211K. Such a high characteristic temperature T0 of threshold current can lead to good temperature sensitivity of the device. At the same time the lasing spectrum characteristics with temperature are also measured. The wavelength shift with temperature is just about 0.06nm/K. From the measured results it is shown that the device can still operate at high temperature condition.
	Large aperture low threshold current 980nmVCSELs fabricated with pulsed anodic oxidation (EI CONFERENCE) 会议论文 OAI收割 Optoelectronic Materials and Devices II, November 2, 2007 - November 5, 2007, Wuhan, China Jinjiang C.; Yongqiang N.; Te L.; Guangyu L.; Yan Z.; Biao P.; Yanfang S.; Lijun W. 收藏 \| 浏览/下载：39/0 \| 提交时间：2013/03/25 Pulsed anodic oxidation technique a new way of forming current blocking layers was successfully used in ridge-waveguide QW laser fabrication. We apply this method in 980nm VCSELs fabrication to form a high-quality native oxide current blocking layer which simplify the device process. A significant reduction of threshold current and a distinguished device performance are achieved. The 500m-diameter device has a current threshold as low as 0.48W. The maximum CW operation output power at room temperature is 1.48W. The lateral divergence angle //and vertical divergence angle are as low as 15.3 and 13.8 without side-lobes at a current of 6A.
	High power vertical cavity surface-emitting laser with high reliability (EI CONFERENCE) 会议论文 OAI收割 Optoelectronic Materials and Devices II, November 2, 2007 - November 5, 2007, Wuhan, China Changling Y.; Guoguang L.; Chunfeng H.; Li Q. 收藏 \| 浏览/下载：21/0 \| 提交时间：2013/03/25 High-power vertical-cavity surface-emitting lasers with InGaAs/GaAs quantum well active gain region are investigated. By using AlAs oxidation technology the devices have been fabricated in experiment and the characteristics of the device are carried out at room temperature. The 300m-diameter VCSELs have the maximum room temperature continuous wave (CW) optical output power of about 1.1W and the threshold current of the device is about 0.46A. The life test of the device is carried out in constant current mode. The life test of 300-m diameter lasers shows that the average lifetime is about 1800h at 80C. The device degradation mechanism is also discussed in detail.
	Thermal fatigue behavior of cast nickel base superalloy K445 期刊论文 OAI收割 ACTA METALLURGICA SINICA, 2006, 卷号: 42, 期号: 10, 页码: 1056-1060 作者: Li Youlin; Yuan Chao; Guo Jianting \| 收藏 \| 浏览/下载：25/0 \| 提交时间：2021/02/02 cast nickel base superalloy thermal fatigue carbide oxidation at high temperature
	Oxidation of two ternary Fe-Cu-5Al alloys in 1 x 10(5) Pa pure oxygen at 700 degrees C 期刊论文 OAI收割 Transactions of Nonferrous Metals Society of China, 2006, 卷号: 16, 页码: S829-S833 J. H. Xiang; Y. Niu; W. T. Wu; G. D. Liu 收藏 \| 浏览/下载：37/0 \| 提交时间：2012/04/14 Fe-Cu-5Al ternary alloy high temperature oxidation at.percent-al-alloys forming insoluble oxides approximate analysis external oxidation oxidant pressures degrees-c 1 atm o-2 800-900-degrees-c 1-atm
	Effect of diffusion on coating microstructure and oxidation resistance of aluminizing steel 期刊论文 OAI收割 TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2001, 卷号: 11, 期号: 6, 页码: 817-821 作者: Xia, Y; Yu, SX; Yao, M; Li, TF \| 收藏 \| 浏览/下载：21/0 \| 提交时间：2021/02/02 hot-dip aluminium dip diffusion aluminum oxidation resistance at high-temperature surface coating microstructure