Coupled optofluidic ring laser for ultrahigh-sensitive sensing
Coupled optofluidic ring laser for ultrahigh-sensitive sensing
复制标题
用于超高灵敏度传感的耦合光流控环形激光器
DOI：
10.1364/oe.19.022242
复制
发表时间：
2011-10-24
期刊：
影响因子：
3.8
通讯作者：
Xu, Lei
中科院分区：
文献类型：
--
作者：
Zhang, Xingwang;Ren, Liqiang;Xu, Lei
一种新的有源传感器结构--耦合光流控环形激光器实现了超高灵敏度。该传感器由一个环形激光器和一个光流控管组成。耦合环形激光器产生的多模回音壁共振的发射强度受到强烈调制。利用光流控管作为传感元件，监测调制激光光谱的包络漂移，获得了5930 nm/RIU的灵敏度，比传统的环形谐振式传感器提高了两个数量级。(C)2011年美国光学学会
Ultrahigh sensitivity is achieved in a new active sensor structure: coupled optofluidic ring laser. The sensor consists of one ring laser and one optofluidic tube. The emission intensity of the multimode whispering gallery resonance from the coupled ring laser is strongly modulated. By using the optofluidic tube as the sensing element, and monitoring the envelope shift of the modulated lasing spectrum, we achieved a sensitivity of 5930 nm/RIU, which is two orders of magnitude higher than a conventional ring resonator sensor. (C)2011 Optical Society of America