Opnext Demonstrates Record-Breaking 3,300km Transmission Distance Using 100Gbps Coherent PM-QPSK Subsystem on SURFnet DWDM In...
10 7월 2012 - 6:15AM
Business Wire
Opnext, Inc. (NASDAQ:OPXT), a global leader in high speed
optical communications technology, and SURFnet, the National
Research and Education Network (NREN) in the Netherlands, today
announced a successful 100Gbps coherent field trial between the
National Supercomputing Center, SARA, in Amsterdam and CERN
(Conseil Européen pour la Recherche Nucléaire - European
Organization for Nuclear Research) in Geneva. Opnext used its
OTS-100FLX 100Gbps digital coherent subsystem for the field trial,
utilizing next-generation 100Gbps single carrier technology and
soft decision forward error correction (SD-FEC) to optically link
Amsterdam to Geneva with a transmission distance of 1,650km using
only erbium doped fiber amplifiers (EDFAs).
To further demonstrate the subsystem’s performance, the embedded
fiber link comprised a combination of the relatively high-nonlinear
TW+ and TWRS fibers. Furthermore, the circuit was optically looped
back in Geneva, thus creating a 3,300km circuit. The looped-back
3,300km link operated error-free for more than 23 hours (BER
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