制备了一种新型的具有高调制带宽的1 053 nm超辐射发光二极管(SLD).利用光荧光(PL)测试分析了不同温度、不同生长速率对SLD芯片外延材料质量的影响,优化了In Ga As/Ga As量子阱的生长温度与生长速率.分析了SLD模块的光电特性随温度与注...制备了一种新型的具有高调制带宽的1 053 nm超辐射发光二极管(SLD).利用光荧光(PL)测试分析了不同温度、不同生长速率对SLD芯片外延材料质量的影响,优化了In Ga As/Ga As量子阱的生长温度与生长速率.分析了SLD模块的光电特性随温度与注入电流的变化关系.研究结果表明,SLD输出波长随温度的漂移系数为0.35 nm/℃,其输出波长随注入电流的漂移对温度并不敏感.在25℃、100 m A注入电流下SLD的-3 d B调制带宽达到1.7 GHz,尾纤输出功率2.5 m W,相应的光谱半宽为24 nm,光谱波纹为0.15 d B.展开更多
The Pan Pearl River Delta （PPRD） Regional Co-operation Framework Agreement was signed in 2004. It aims to bring prosperity through partnership among nine Chinese Mainland provinces and China ＂s two special administ...The Pan Pearl River Delta （PPRD） Regional Co-operation Framework Agreement was signed in 2004. It aims to bring prosperity through partnership among nine Chinese Mainland provinces and China ＂s two special administrative regions. In this paper, we use a dynamic panel data model to examine the economic growth of the PPRD economies from 1985 to 2009. Our analysis confirms the existence of regional growth spillover effects in the PPRD area. Our results also show that economic growth spillover effects of non-PPRD regions on the PPRD regions are greater than those among the PPRD members themselves. These findings imply that economic integration between Chinese provinces has generated considerable spillover effects on regional growth. However, the anticipated benefits of the implementation of the PPRD agreement have not been realized thus far. Therefore, greater effort shouM be made to promote further economic integration among these members so that their local economies can benefit from the positive spillover effects.展开更多
文摘制备了一种新型的具有高调制带宽的1 053 nm超辐射发光二极管(SLD).利用光荧光(PL)测试分析了不同温度、不同生长速率对SLD芯片外延材料质量的影响,优化了In Ga As/Ga As量子阱的生长温度与生长速率.分析了SLD模块的光电特性随温度与注入电流的变化关系.研究结果表明,SLD输出波长随温度的漂移系数为0.35 nm/℃,其输出波长随注入电流的漂移对温度并不敏感.在25℃、100 m A注入电流下SLD的-3 d B调制带宽达到1.7 GHz,尾纤输出功率2.5 m W,相应的光谱半宽为24 nm,光谱波纹为0.15 d B.
基金Financial support from the University of Macao(RG017/06- 07S/CY/FSH and RG041/09-10S/CY/FSH)the Australian Research Council(DP1092913)
文摘The Pan Pearl River Delta （PPRD） Regional Co-operation Framework Agreement was signed in 2004. It aims to bring prosperity through partnership among nine Chinese Mainland provinces and China ＂s two special administrative regions. In this paper, we use a dynamic panel data model to examine the economic growth of the PPRD economies from 1985 to 2009. Our analysis confirms the existence of regional growth spillover effects in the PPRD area. Our results also show that economic growth spillover effects of non-PPRD regions on the PPRD regions are greater than those among the PPRD members themselves. These findings imply that economic integration between Chinese provinces has generated considerable spillover effects on regional growth. However, the anticipated benefits of the implementation of the PPRD agreement have not been realized thus far. Therefore, greater effort shouM be made to promote further economic integration among these members so that their local economies can benefit from the positive spillover effects.
