A Four-Element Sensor Array Consisting of Asymmetric Distributed-Feedback Fiber Lasers  

作　　者：Pengpeng WANG Jun CHANG Cunguang ZHU Boning SUN Guangping LV Sasa ZHANG Yanjie ZHAO Zhihui SUN Xiaolei ZHANG Gangding PENG 

机构地区：[1]School of Information Science and Engineering and Shandong Provincial Key Laboratory of Laser Technology andApplication, Shandong University, Jinan, 250100, China [2]Laser Institute of Shandong Academy of Science, Jinan, 250014, China [3]photonics & Optical Communications Group, School of Electrical Engineering & Telecommunications, the Universityof New South Wales, Sydney 2052, Australia

出　　处：《Photonic Sensors》2014年第2期180-187,共8页光子传感器（英文版）

摘　　要：A sensor array system formed by arranging four asymmetric distributed-feedback fiber lasers （DFB-FL） in ascending order according to their slope efficiencies was proposed. The output flatness could be effectively improved with the application of asymmetric DFB-FLs. The last element had almost the same output with the others although it obtained the smallest pump power. The relative intensity noise （RIN） and relaxation oscillation frequency of the sensor array were also analyzed. It is found that the relaxation oscillation frequency of a certain DFB-FL was relevant to its relative position in the array. And the RIN of a certain DFB-FL was always affected by the other elements in the array, which was not dependent on the order of their arrangement.

关 键 词：Asymmetric DFB fiber laser sensor array intensity noise relaxation oscillation 

分 类 号：TN248[电子电信—物理电子学] TP212[自动化与计算机技术—检测技术与自动化装置]