Abstract
We propose a novel supersymmetry-inspired scheme for achieving robust single-mode lasing in arrays of coupled microcavities, based on factorizing a given array Hamiltonian into its “supercharge” partner array. Pumping a single sublattice of the partner array preferentially induces lasing of an unpaired zero mode. A chiral symmetry protects the zero mode similar to 1D topological arrays, but it need not be localized to domain walls or edges. We demonstrate single-mode lasing over a wider parameter regime by designing the zero mode to have a uniform intensity profile.
© 2019 Optical Society of America
Full Article | PDF ArticleMore Like This
Bikashkali Midya, Wiktor Walasik, Natalia M. Litchinitser, and Liang Feng
Opt. Lett. 43(20) 4927-4930 (2018)
H. Hodaei, M. A. Miri, A. U. Hassan, W. E. Hayenga, M. Heinrich, D. N. Christodoulides, and M. Khajavikhan
Opt. Lett. 40(21) 4955-4958 (2015)
Kaiwen Ji, Zhenjuan Liu, Yanan Dai, Zengrun Wen, Yishan Wang, Guoquan Zhang, Jintao Bai, and Xinyuan Qi
Opt. Lett. 45(1) 49-52 (2020)