Spectrally stitched nonlinear frequency division multiplexed transmission systems using photonic integrated circuits

Abstract

We present the implementation of a PIC-based nonlinear frequency division multiplexed transmission system in which spectrally overlapping channels are stitched together without frequency guard bands to obtain a seamless spectrum.To coherently combine the channels with partial overlaps, the channels are generated using a comb source whose pulse repetition rate is synchronized with the clock used to generate the electronic signals.After that, all channels are linearly multiplexed using a PIC in which the delay and phase of all the optical paths are balanced and dynamically corrected.The proposed solution can fill large optical bandwidths while keeping the computational complexity to that of independently processing multiple low bandwidth channels.

Authors 4

1. Alvaro Moscoso Martir
2. Olaf Schulz

   Christian-Albrechts-Universität zu Kiel

   Affiliation as printed

   Chair of Communications , Kiel University , Kaiserstr. 2 , 24143 Kiel , Germany

3. Stephan M. Pachnicke

   Christian-Albrechts-Universität zu Kiel

   Affiliation as printed

   Chair of Communications , Kiel University , Kaiserstr. 2 , 24143 Kiel , Germany

4. Jeremy Witzens Aachen Institute of Integrated Photonics (IPH)

   RWTH Aachen University

   Affiliation as printed

   Institute of Integrated Photonics , RWTH Aachen University , Campus Blvd. 73 , 52074 Aachen , Germany;