Figure 8
From: Reconfigurable SDM Switching Using Novel Silicon Photonic Integrated Circuit
(a) PDM compatible SDM switching. The s- and p- polarized spatial channels split from each core is freely switched independently in the switching matrix. After switching, the s- and p- polarized channels are recombined by the polarization combiner, and coupled to the corresponding cores of the multicore fiber. Here cross-configuration is deployed for both s- and p- polarized channels realizing polarization diversity based polarization independent SDM switch. (b) WDM compatible SDM switching. The WDM channels from each core are first wavelength demultiplexed. The spatial channels at the same wavelength are switched through the corresponding reconfigurable SDM switching matrix, and assigned to the corresponding wavelength multiplexer. The switched spatial WDM channels are multiplexed and coupled to the corresponding core of the multicore fiber.
