title: Dual-LP11 mode 4×4 MIMO-OFDM transmission over a two-mode fiber.
abstract: We report successful transmission of dual-LP(11) mode (LP(11a) and LP(11b)), dual polarization coherent optical orthogonal frequency-division multiplexing (CO-OFDM) signals over two-mode fibers (TMF) using all-fiber mode converters. Mode converters based on mechanically induced long-period grating with better than 20 dB extinction ratios are realized and used for interfacing single-mode fiber transmitter and receivers to the TMF. We demonstrate that by using 4×4 MIMO-OFDM processing, the random coupling of the two LP(11) spatial modes can be successfully tracked and equalized with a one-tap frequency-domain equalizer. We achieve successful transmission of 35.3 Gb/s over 26-km two-mode fiber with less than 3 dB penalty.
authors.affiliation: National ICT Australia and Centre for Energy- Efficient Telecommunications (CEET), Department of Electrical and Electronic Engineering, The University of Melbourne, Parkville, VIC 3010, Australia. aalamin@unimelb.edu.au
authors.forename: Abdullah
authors.initials: A
authors.lastname: Al Amin
authors.forename: An
authors.initials: A
authors.lastname: Li
authors.forename: Simin
authors.initials: S
authors.lastname: Chen
authors.forename: Xi
authors.initials: X
authors.lastname: Chen
authors.forename: Guanjun
authors.initials: G
authors.lastname: Gao
authors.forename: William
authors.initials: W
authors.lastname: Shieh