机构

• 长春光学精密机械与物... [5]

采集方式

• OAI收割 [5]

内容类型

• 会议论文 [5]

发表日期

• 2014 [1]
• 2013 [2]
• 2010 [1]
• 2008 [1]

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浏览/检索结果: 共5条，第1-5条 帮助 限定条件 内容类型：会议论文    专题：长春光学精密机械与物理研究所    第一署名单位    第一作者单位    通讯作者单位     条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择提交时间升序提交时间降序题名升序题名降序作者升序作者降序发表日期升序发表日期降序 Study on the sensitivity of temperature gradient for large aperture SiC lightweight mirror based on active optics 会议论文  OAI收割 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, AOMATT 2014, April 26, 2014 - April 29, 2014, Harbin, China 作者:  Li J.;  Zhang J.;  Li J.;  Li J.;  Zhang J. 收藏  |  浏览/下载：16/0  |  提交时间：2015/04/27 High temperature operating (> 80 degrees C) 795-nm VCSEL based on InAlGaAs MQWs active region 会议论文  OAI收割 Conference Location, 2013 作者:  Zhang X.;  Zhang J.;  Zhang J.;  Zhang J. 收藏  |  浏览/下载：16/0  |  提交时间：2014/05/22 High temperature operating (80C) 795-nm VCSEL based on InAlGaAs MQWs active region 会议论文  OAI收割 5th International Symposium on Photoelectronic Detection and Imaging, ISPDI 2013, June 25, 2013 - June 27, 2013, Beijing, China 作者:  Zhang X.;  Wang L.;  Zhang J.;  Zhang J.;  Zhang J. 收藏  |  浏览/下载：13/0  |  提交时间：2014/05/15 Study on sensing properties of a temperature-independent high pressure sensor base on tapered FBG (EI CONFERENCE) 会议论文  OAI收割 International Symposium on Photonics and Optoelectronics, SOPO 2010, June 19, 2010 - June 21, 2010, Chengdu, China 作者:  Liu Y.;  Zhang Y.;  Zhang X.;  Zhang X.;  Zhang X. 收藏  |  浏览/下载：20/0  |  提交时间：2013/03/25 The sensing properties with strain and temperature of tapered FBG had been researched both theoretically and experimentally. Based on tapered FBG and thin-wall strain cylinder structure  a novel temperature-independent high pressure sensor was fabricated and investigated. The tapered FBG performed as a chirped grating  whose bandwidth and reflection power broadened and increased when the pressure applied on it. Moreover  the bandwidth and the reflection power were temperature-independent. So the value of the strain can be obtained by detecting the reflection power. This method effectively solved the cross-sensitivity problem. The experiment results indicated that this sensor provided a measurement range of 040MPa with a sensitivity of 0.04w/MPa  low cost and good application prospect. 2010 IEEE.   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：12/0  |  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.