Bernas Marta, Statkiewicz-Barabach Gabriela, Urbanczyk Waclaw
Opt Express. 2023 Jul 3;31(14):22837-22854. doi: 10.1364/OE.489599.
We present a rocking filter in a highly birefringent two-mode fiber that enables resonant coupling between different modes in the LP group. Our simulations and experimental results prove that such a filter allows for resonant coupling between orthogonally polarized LP modes of the same spatial structure, as well as between modes of the same polarizations and orthogonal spatial distributions. Furthermore, we demonstrate that such rocking filters can be used to generate pure TE, TM and HE beams or their coherent superposition.
我们展示了一种置于高双折射双模光纤中的摇摆滤波器，它能够实现LP组中不同模式之间的共振耦合。我们的模拟和实验结果证明，这种滤波器允许相同空间结构的正交偏振LP模式之间以及相同偏振和正交空间分布的模式之间发生共振耦合。此外，我们证明这种摇摆滤波器可用于生成纯TE、TM和HE光束或它们的相干叠加。
