RGB WGM lasing woven in fiber braiding cavity

作     者：Kun GE Zhiyang XU Dan GUO Ben NIU Jun RUAN Libin CUI Tianrui ZHAI 

作者机构：College of Physics and OptoelectronicsFaculty of ScienceBeijing University of Technology 

出 版 物：《Science China(Information Sciences)》 (中国科学:信息科学(英文版))

年 卷 期：2022年第65卷第8期

页      面：247-253页

核心收录：

学科分类：08[工学] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：supported by Beijing Natural Science Foundation (Grant No. Z180015) National Natural Science Foundation of China (Grant No. 61822501) 

主　　题：RGB whispering gallery mode (WGM) lasing fiber braidingcavity full-color gamut 

摘      要：It is critical to realize woven and wearable red-green-blue(RGB) whispering gallery mode(WGM)lasing that is tunable and flexible in the fiber braiding cavity. However, it is still a challenge to achieve tunable full-color lasing with the large color gamut by a facile approach. Here, we design the braiding cavity to realize RGB WGM lasing with high performance. The braiding cavity consists of three optical fibers coated with dye-doped polymer. Each fiber therein serves as a resonant cavity to support multiple lasing modes. There is no interference owing to the air gap between them; therefore, we can achieve full-color WGM lasing. The lasing emission in our fiber braiding cavity covers a color gamut of 86.7% larger than standard RGB space.Our work may provide a platform for potential applications in white laser and integrated optoelectronic devices.