Abstract
We consider light dynamics in a circular multi-core fiber with balanced gain and loss core distribution, and show that transition from unbroken to broken phases can be conveniently controlled by geometric twist of the fiber. The twist introduces Peierls phases in the coupling constants and, thus, acts as an artificial gauge field. As an application, we discuss twist-induced tuning of optical transmission in a six-core fiber with one lossy core.
© 2016 Optical Society of America
Full Article | PDF ArticleMore Like This
X. Zhang, V. A. Vysloukh, Y. V. Kartashov, X. Chen, F. Ye, and M. R. Belić
Opt. Lett. 42(15) 2972-2975 (2017)
Midya Parto, Mohammad Amin Eftekhar, Mohammad-Ali Miri, Rodrigo Amezcua-Correa, Guifang Li, and Demetrios N. Christodoulides
Opt. Lett. 41(9) 1917-1920 (2016)
S. Longhi
Opt. Lett. 41(19) 4518-4521 (2016)