Multi-threshold second-order phase transition in laser  

作　　者：ZHUANG Wei YU DeShui LIU ZhiWen CHEN JingBiao 

机构地区：[1]Institute of Quantum Electronics, and State Key Laboratory of Advanced Optical Communication System ＆ Network, School of Electronics Engineering ＆ Computer Science, Peking University, Beijing 100871, China [2]Department of Electrical Engineering, The Pennsylvania State University, University Park, PA 16802, USA

出　　处：《Chinese Science Bulletin》2011年第35期3812-3816,共5页

基　　金：supported by the National Natural Science Foundation of China(10874009 and 11074011)

摘　　要：We present a theory of the multi-threshold second-order phase transition,and experimentally demonstrate the multi-threshold secondorder phase transition phenomenon.With carefully selected parameters,in an external cavity diode laser system,we observe secondorder phase transition with multiple(three or four) thresholds in the measured power-current-temperature three dimensional phase diagram.Such controlled death and revival of second-order phase transition sheds new insight into the nature of ubiquitous secondorder phase transition.Our theory and experiment show that the single threshold second-order phase transition is only a special case of the more general multi-threshold second-order phase transition,which is an even richer phenomenon.We present a theory of the multi-threshold second-order phase transition, and experimentally demonstrate the multi-threshold second- order phase transition phenomenon. With carefully selected parameters, in an external cavity diode laser system, we observe second- order phase transition with multiple （three or four） thresholds in the measured power-current-temperature three dimensional phase diagram. Such controlled death and revival of second-order phase transition sheds new insight into the nature of ubiquitous second- order phase transition. Our theory and experiment show that the single threshold second-order phase transition is only a special case of the more general multi-threshold second-order phase transition, which is an even richer phenomenon.

关 键 词：二阶相变 多阈值 激光相变 激光器系统 二极管 实验 外腔 

分 类 号：TN241[电子电信—物理电子学] O414.13[理学—理论物理]