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

Volume

33

Issue

7

fYear

2015

fDate

April1, 1 2015

Firstpage

1408

Lastpage

1416

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;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2015.2397010

Filename

7027779