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Distributed generation of a 400-Gb/s nyquist 16QAM dense superchannel by fiber-frequency conversion

: Richter, T.; Schmidt-Langhorst, C.; Elschner, R.; Kato, T.; Watanabe, S.; Schubert, C.


Optical Society of America -OSA-, Washington/D.C.; Institute of Electrical and Electronics Engineers -IEEE-:
Optical Fiber Communications Conference and Exhibition, OFC 2014. Vol.1 : San Francisco, California, USA, 9 - 13 March 2014
Piscataway, NJ: IEEE, 2014
ISBN: 978-1-4799-5731-6
ISBN: 978-1-55752-994-7
ISBN: 978-1-55752-993-0
Optical Fiber Communications Conference and Exhibition (OFC) <2014, San Francisco/Calif.>
Fraunhofer HHI ()

We generate an ultra-dense 400-Gb/s superchannel by combining four spatially distributed 28-GBd-Nyquist-16QAM-sub-carrier transmitters using optical processing in nonlinear fibers. The multiplexed sub-carriers are precisely frequency-allocated with guard bands down to 0% and achieve bit-error ratios below 3.8×10-3.