Optical OFDM for the data center

Author

Benlachtar, Yannis ; Bouziane, Rachid ; Killey, Robert I. ; Berger, Christian R. ; Milder, Peter ; Koutsoyannis, Robert ; Hoe, James C. ; Püschel, Markus ; Glick, Madeleine

Author_Institution

Dept. of Electron. & Electr. Eng., Univ. Coll. London, London, UK

fYear

2010

Firstpage

1

Lastpage

4

Abstract

We investigate the use of orthogonal frequency division multiplexing (OFDM) to increase the capacity of multimode fiber (MMF)-based optical interconnects for data center applications. This approach provides a solution to modulation bandwidth limitations of the lasers, and to the intermodal dispersion of the MMF which leads to frequency-dependent attenuation. Recent studies on adaptively modulated OFDM are reviewed, and new simulation results assessing the capacity of such links for lengths of up to 300 m are presented, assuming the use of 50/125 μm graded-index MMF at a wavelength of 850 nm. The use of coded OFDM as an approach to deal with intermodal dispersion is also discussed.

Keywords

OFDM modulation; bandwidth allocation; optical fibre communication; optical fibre dispersion; optical interconnections; optical modulation; coded OFDM; data center; frequency-dependent attenuation; graded-index MMF; intermodal dispersion; modulation bandwidth limitations; multimode fiber-based optical interconnects; optical OFDM; orthogonal frequency division multiplexing; Bandwidth; Fiber lasers; OFDM modulation; Optical attenuators; Optical fiber networks; Optical interconnections; Optical modulation; Optical receivers; Optical transmitters; Vertical cavity surface emitting lasers; multimode fiber; optical OFDM; optical interconnects;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks (ICTON), 2010 12th International Conference on

Conference_Location

Munich

Print_ISBN

978-1-4244-7799-9

Electronic_ISBN

978-1-4244-7797-5

Type

conf

DOI

10.1109/ICTON.2010.5549137

Filename

5549137