NP 2011

26 Tbit s-1 line-rate super-chan­nel trans­mis­sion uti­liz­ing all-opti­cal fast Fouri­er trans­form pro­cess­ing

Nature Pho­ton­ics

Abstract: Opti­cal trans­mis­sion sys­tems with ter­abit per sec­ond (Tbit s-1) sin­gle-chan­nel line rates no longer seem to be too far-fetched. New ser­vices such as cloud com­put­ing, three-dimen­sion­al high-def­i­n­i­tion tele­vi­sion and vir­tu­al-real­i­ty appli­ca­tions require unprece­dent­ed opti­cal chan­nel band­widths. These high-capac­i­ty opti­cal chan­nels, how­ev­er, are fed from low­er-bitrate sig­nals. The ques­tion then is whether the low­er-bitrate trib­u­tary infor­ma­tion can viably, ener­gy-effi­cient­ly and effort­less­ly be encod­ed to and extract­ed from ter­abit per sec­ond data streams. We demon­strate an opti­cal fast Fouri­er trans­form scheme that pro­vides the nec­es­sary com­put­ing pow­er to encode low­er-bitrate trib­u­taries into 10.8 and 26.0 Tbit s-1 line-rate orthog­o­nal fre­quen­cy-divi­sion mul­ti­plex­ing (OFDM) data streams and to decode them from fibre-trans­mit­ted OFDM data streams. Exper­i­ments show the fea­si­bil­i­ty and ease of han­dling ter­abit per sec­ond data with low ener­gy con­sump­tion. To the best of our knowl­edge, this is the largest line rate ever encod­ed onto a sin­gle light source.

Ref­er­ence:

D. Hillerkuss, R. Schmogrow, T. Schellinger, M. Jor­dan, M. Win­ter, G. Huber, T. Val­laitis, R. Bonk, P. Kleinow, F. Frey, M. Roeger, S. Koenig, A. Lud­wig, A. Mar­cules­cu, J. Li, M. Hoh, M. Dreschmann, J. Mey­er, S. Ben Ezra, N. Narkiss, B. Neben­dahl, F. Parmi­giani, P. Petropou­los, B. Resan, A. Oehler, K. Wein­garten, T. Eller­mey­er, J. Lutz, M. Moeller, M. Hueb­n­er, J. Beck­er, C. Koos, W. Freude, J. Leuthold, “26 Tbit s-1 line-rate super-chan­nel trans­mis­sion uti­liz­ing all-opti­cal fast Fouri­er trans­form pro­cess­ing,” Nature Pho­ton­ics, http://​dx​.doi​.org/​1​0​.​1​0​3​8​/​n​p​h​o​t​o​n​.​2​0​1​1​.74, pub­lished online 22 May 2011.

 

Paper not avail­able for down­load.
NPG guide­lines do not allow mak­ing the arti­cle avail­able for down­load. How­ev­er, I will send it via e-mail to those who ask.

 

A (Ger­man) press release from KIT is avail­able here.

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