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Coherent subcarrier processing node based on optical frequency conversion and free-running lasers

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

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Journal of Lightwave Technology 33 (2015), Nr.3, S.685-693
ISSN: 0733-8724
Englisch
Zeitschriftenaufsatz
Fraunhofer HHI ()

Abstract
We demonstrate the use of frequency conversion in optical fiber to implement a coherent add/drop architecture. Its application is experimentally investigated in an optical frequency-division multiplexing scenario with up to three subcarriers which are modulated by quadrature phase-shift keying. We show sub-carrier drop and replacement in a bus topology. Furthermore, we quantify tolerances with respect to delay and amplitude mismatch by experiments and simulations. Finally, we discuss on the scalability of the scheme.

: http://publica.fraunhofer.de/dokumente/N-336618.html