Low-Loss All-Fiber Mode Permuter Design Exploiting Propagation Constant Engineering and Cascaded Bragg Gratings

Oleksiy Krutko, Rebecca Refaee, Anirudh Vijay +2

Managing group-delay (GD) spread is vital for reducing the complexity of digital signal processing (DSP) in long-haul systems using multi-mode fibers. GD compensation through mode…