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Parametric amplification of 112 Gbit/s polarization multiplexed DQPSK signals in a fiber loop configuration

: Richter, T.; Elschner, R.; Gandhe, A.; Schubert, C.

Institute of Electrical and Electronics Engineers -IEEE-; Optical Society of America -OSA-, Washington/D.C.:
Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference, OFC/NFOEC 2011. Vol.2 : Los Angeles, California, USA, 6 - 10 March 2011
Piscataway: IEEE, 2011
ISBN: 978-1-4577-0213-6
Optical Fiber Communication Conference and Exposition (OFC) <2011, Los Angeles/Calif.>
National Fiber Optic Engineers Conference (NFOEC) <2011, Los Angeles/Calif.>
Fraunhofer HHI ()

Parametric amplification of 112-Gbit/s-33%-RZ-DQPSK signals with 20 dB on-off-gain is shown using highly nonlinear fiber in a polarization diversity configuration. The measured OSNR penalty at a BER of 10-4(10 -9) is about 0.3 dB (1 dB).