Chinese Optics Letters, 2020, 18 (1): 010602, Published Online: Dec. 30, 2019
Stimulated Brillouin scattering by the interaction between different-order optical and acoustical modes in an As2Se3 photonic crystal fiber Download: 934次
stimulated Brillouin scattering optical mode acoustic mode chalcogenide fiber photonic crystal fiber
Abstract
Brillouin gain spectra (BGS) in an As2Se3 photonic crystal fiber (PCF) are investigated numerically. The profiles of the BGS are simulated by calculating the characteristics of different-order optical and acoustic waves in the PCFs with different core diameters. For the small-core PCF, there are two peaks in BGS, but there is only one peak for the large-core PCF. We also reveal that in the small-core PCF, the difference of Brillouin frequency shift between the LP01 and LP11 modes is obvious, while it is not obvious in the large-core PCF. The Brillouin threshold increases with the core diameter increasing.
Weiqing Gao, Liang Chen, Wenhui Jiang, Zhengxiong Zhang, Xiu Zhang, Panyun Gao, Kang Xie, Wei Zhang, Yong Zhou, Meisong Liao, Takenobu Suzuki, Yasutake Ohishi. Stimulated Brillouin scattering by the interaction between different-order optical and acoustical modes in an As2Se3 photonic crystal fiber[J]. Chinese Optics Letters, 2020, 18(1): 010602.