Active multi-core fibers represent a powerful platform for coding information via power, phase, frequency, and topological charge, as presented by Petra P. Beličev, Sergei Turitsyn, and co-workers in article number 2100108. Depending on the gain distribution between the periphery and central core, the system supports multiple functions in applications: from high-power fiber lasers to vortex carriers and selective topological charge switchers.

中文翻译：

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拓扑电荷开关：有源多芯光纤中的拓扑电荷开关（Ann. Phys. 9/2021）

正如 Petra P. Beličev、Sergei Turitsyn 及其同事在文章编号 2100108 中所介绍的那样，有源多芯光纤代表了通过功率、相位、频率和拓扑电荷对信息进行编码的强大平台。外围和中央核心，该系统支持多种应用功能：从高功率光纤激光器到涡流载体和选择性拓扑电荷开关。