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All-optical multilevel amplitude and phase regeneration

: Roethlingshoefer, T.; Richter, T.; Onishchukov, G.; Schubert, C.; Schmauss, B.; Leuchs, G.


Institute of Electrical and Electronics Engineers -IEEE-; IEEE Photonics Society:
IEEE Photonics Society Summer Topical Meeting Series 2014 : Montreal, Quebec, Canada, 14 - 16 July 2014; Proceedings
Los Alamitos, Calif.: IEEE Computer Society Conference Publishing Services (CPS), 2014
ISBN: 978-1-4799-2768-5
ISBN: 978-1-4799-2766-1 (Print)
ISBN: 978-1-4799-2767-8
IEEE Photonics Society (Summer Topical Meeting Series) <2014, Montreal>
Meeting "Nonlinear-Optical Signal Processing" (NOSP) <2014, Montreal>
Conference Paper
Fraunhofer HHI ()

Using a cascade of an amplitude and a phase regenerator, multilevel signal processing is demonstrated experimentally for a 25-GBd star-8QAM. Improvements in the signal quality by up to 2 dB are obtained.