标题： 用于空间复用通信的集成包层泵浦多芯少模掺铒光纤放大器 显示英文标题

标题： Integrated cladding-pumped multi-core, few-mode erbium-doped fibre amplifier for space-division multiplexed communications

摘要： 空间复用（SDM），通过在多模和多芯光纤中使用多个空间信道以增加每根光纤的总传输容量，正在被研究以避免数据容量瓶颈并降低每个传输比特的成本。随着SDM传输实验中使用的信道数量持续增加，需要可扩展的集成SDM组件。在这里，我们展示了一种包层泵浦的SDM掺铒光纤放大器（EDFA），它由六个不耦合的多模掺铒核心组成。每个核心支持三个空间模式，这使得EDFA能够使用单个泵浦二极管同时放大总共18个空间信道，其复杂度类似于单模EDFA。该放大器每核输出功率超过20-dBm，C波段内的噪声系数小于7-dB。这种包层泵浦EDFA实现了在多个多模光纤段上的空间复用和波长复用传输的结合。 显示英文摘要

摘要： Space-division multiplexing (SDM), whereby multiple spatial channels in multimode and multicore optical fibers are used to increase the total transmission capacity per fiber, is being investigated to avert a data capacity crunch and reduce the cost per transmitted bit. With the number of channels employed in SDM transmission experiments continuing to rise, there is a requirement for integrated SDM components that are scalable. Here, we demonstrate a cladding-pumped SDM erbium-doped fiber amplifier (EDFA) that consists of six uncoupled multimode erbium-doped cores. Each core supports three spatial modes, which enables the EDFA to amplify a total of 18 spatial channels simultaneously with a single pump diode and a complexity similar to a single-mode EDFA. The amplifier delivers more than 20-dBm total output power per core and less than 7-dB noise figure over the C-band. This cladding-pumped EDFA enables combined space-division and wavelength-division multiplexed transmission over multiple multimode fiber spans.