Abstract
Mode selection is crucial to achieving stable single-mode lasing in microlasers. Here, we demonstrate experimentally a dual-port square microresonator for single-mode lasing with a side-mode-suppression ratio (SMSR) exceeding 40 dB. By connecting waveguides at two opposite vertices, the quality factor for the antisymmetric mode (ASM) is much higher than that of the symmetric mode (SM), enabling single-mode lasing. Furthermore, far-field interference patterns similar to Young’s two-slit interference are observed. This microlaser is capable of providing two optical sources simultaneously for optical signal processing in high-density integrated photonic circuits.
© 2022 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Zhi-Xiong Xiao, Yong-Zhen Huang, Yue-De Yang, Jin-Long Xiao, and Xiu-Wen Ma
Opt. Lett. 42(7) 1309-1312 (2017)
Jian-Dong Lin, Yong-Zhen Huang, Yue-De Yang, Qi-Feng Yao, Xiao-Meng Lv, Jin-Long Xiao, and Yun Du
Opt. Lett. 37(11) 1977-1979 (2012)
Jian-Cheng Li, Yong-Tao Huang, Chun-Guang Ma, Zhen-Ning Zhang, Jin-Long Xiao, Yue-De Yang, and Yong-Zhen Huang
Opt. Lett. 48(19) 4953-4956 (2023)