论文标题
基于多个四波混合物的6-LP模式纤维中的空间多路复用脉冲训练生成
Spatially multiplexed picosecond pulse-train generation in a 6-LP-mode fiber based on multiple four-wave-mixings
论文作者
论文摘要
我们报告了四个在km长的6-LP多模光纤中生成四个空间多路复用的40-GHz脉冲序列。操作的原理基于由于模式内多个四波混合而导致初始搏动 - 信号的平行非线性压缩到良好的分离脉冲序列中。一系列在不同波长处的四个40 GHz双频击败同时注射到1.8公里长的几个模式纤维的LP01，LP11，LP02和LP12模式中。 KERR非线性和异常色色散的综合作用导致四个空间多路复用的频率梳子同时生成，这些频率梳子在时间域中对应于这些节拍信号的脉冲脉冲。从每个空间模式中消除的输出脉冲训练的时间曲线表明，分离良好的皮秒脉冲具有可忽略的基座。
We report on the generation of four spatially multiplexed picosecond 40-GHz pulse trains in a km-long 6-LP multimode optical fiber. The principle of operation is based on the parallel nonlinear compression of initial beat-signals into well separated pulse trains owing to intra-modal multiple four-wave mixings. A series of four 40-GHz dual-frequency beatings at different wavelengths are simultaneously injected into the LP01, LP11, LP02 and LP12 modes of a 1.8-km long graded-index few-mode fiber. The combined effects of Kerr nonlinearity and anomalous chromatic dispersion lead to the simultaneous generation of four spatially multiplexed frequency combs which correspond in the temporal domain to the compression of these beat-signals into picosecond pulses. The temporal profiles of the output pulse-trains demultiplexed from each spatial mode show that well-separated picosecond pulses with negligible pedestals are then generated.
