title: Adaptive frequency-domain equalization for the transmission of the fundamental mode in a few-mode fiber.
abstract: We propose and experimentally demonstrate single-carrier adaptive frequency-domain equalization (SC-FDE) to mitigate multipath interference (MPI) for the transmission of the fundamental mode in a few-mode fiber. The FDE approach reduces computational complexity significantly compared to the time-domain equalization (TDE) approach while maintaining the same performance. Both FDE and TDE methods are evaluated by simulating long-haul fundamental-mode transmission using a few-mode fiber. For the fundamental mode operation, the required tap length of the equalizer depends on the differential mode group delay (DMGD) of a single span rather than DMGD of the entire link.
authors.affiliation: CREOL, The College of Optics & Photonics, University of Central Florida, 4000 Central Florida Blvd., Orlando, FL 32816-2700, USA. bneng@creol.ucf.edu
authors.forename: Neng
authors.initials: N
authors.lastname: Bai
authors.forename: Cen
authors.initials: C
authors.lastname: Xia
authors.forename: Guifang
authors.initials: G
authors.lastname: Li
mesh_terms: D003198:Computer Simulation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D008962:Models, Theoretical; D013685:Telecommunications / Q000295:instrumentation*