Abstract
Single-mode lasing from a coupled asymmetric microcavity is achieved. By coupling two size mismatched circular microrings to form a coupled asymmetric microcavity, multi-whispering-gallery modes are successfully suppressed and single-frequency laser emission is robustly obtained. Moreover, the laser emits in four directions, and each beam has a divergence of only . It is demonstrated further that this single-frequency coupled microcavity laser can be easily integrated with planar lightwave circuits. We provide an easily accessible approach to achieve a single-frequency laser from microcavity lasers operating on whispering-gallery modes.
© 2008 Optical Society of America
Full Article | PDF ArticleMore Like This
Xin Tu, Xiang Wu, Ming Li, Liying Liu, and Lei Xu
Opt. Express 20(18) 19996-20001 (2012)
Xingwang Zhang, Hao Li, Xin Tu, Xiang Wu, Liying Liu, and Lei Xu
J. Opt. Soc. Am. B 28(3) 483-488 (2011)
Zhen-Nan Tian, Feng Yu, Yan-Hao Yu, Jun-Jie Xu, Qi-Dai Chen, and Hong-Bo Sun
Opt. Lett. 42(8) 1572-1575 (2017)