Title :
Quaternary Polarization-Multiplexed Subsystem for High-Capacity IM/DD Optical Data Links
Author :
Estaran, Jose ; Usuga, Mario A. ; da Silva, Edson Porto ; Piels, Molly ; Olmedo, Miguel Iglesias ; Zibar, Darko ; Monroy, Idelfonso Tafur
Author_Institution :
Dept. of Photonics Eng., Tech. Univ. of Denmark, Lyngby, Denmark
Abstract :
We demonstrate for the first time an intensity-modulated direct-detection link using four states of polarization. The four data-independent tributaries are each assigned distinct states of polarization to enable the receiver to separate the signals. Polarization rotation due to propagation over optical fiber is tracked and compensated with simple digital signal processing in Stokes space. Transmission below the forward error correction limit is shown for maximum net bitrates of 100 Gb/s (4 × 27 GBd) and 120 Gb/s (4 × 32 GBd) over 2-km standard single-mode fiber at a center wavelength of 1550 nm.
Keywords :
intensity modulation; optical fibre polarisation; optical links; optical modulation; optical signal detection; wavelength division multiplexing; Stokes space; digital signal processing; forward error correction limit; four data-independent tributaries; high-capacity IM-DD optical data links; intensity-modulated direct-detection link; optical fiber propagation; polarization rotation; quaternary polarization-multiplexed subsystem; receiver; standard single-mode fiber; wavelength 1550 nm; Demultiplexing; Digital signal processing; Optical distortion; Optical polarization; Optical receivers; Optical transmitters; 100G; Polarization; Stokes space; digital signal processing; direct detection (DD); intensity modulation (IM); polarization;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2015.2397010
