3 papers
physics.optics2025
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…
physics.optics2025
Closed-Form Statistics and Design of Mode-Division-Multiplexing Systems Employing Group-Delay Compensation and Mode Permutation
Anirudh Vijay, Nika Zahedi, Oleksiy Krutko +2
Excessive accumulation of group-delay (GD) spread increases computational complexity and affects tracking of receiver-based multi-input multi-output signal processing, posing chall…
physics.optics2025
Modal Statistics in Mode-Division-Multiplexed Systems using Mode Scramblers (Extended)
Anirudh Vijay, Oleksiy Krutko, Rebecca Refaee +1
Typical multi-mode fibers exhibit strong intra-group mode coupling and weak inter-group mode coupling. Mode scramblers can be inserted at periodic intervals to enhance inter-group…