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Q: Fachverband Quantenoptik und Photonik

Q 16: Photonics II

Q 16.5: Vortrag

Montag, 18. März 2013, 17:30–17:45, A 310

Soliton molecules: possibility of fibre-optic transmission of two bits per clock period — •Alexander Hause, Philipp Rohrmann, and Fedor Mitschke — Universität Rostock, Institut für Physik, Universitätsplatz 3, 18051 Rostock

New concepts of optical data transmission are demanded in the near future. Most common coding principles rely on transmitting weak light pulses to avoid perturbations arising from fiber nonlinearity. In contrast we propose a soliton-based concept which includes nonlinear effects in dispersion-managed fibers. Using trains of solitons also known as soliton molecules it is possible to have more symbols for a new coding scheme available. Recently we succeeded to show the existence of a two- and three-soliton molecule in a proof-of-principle experiment[1]. With this achievement it is shown to be possible to transmit 2 bits of information in a single clock cycle.

Here we present experimental results and comparisons with numerical data. The multi-soliton input states are created using a pulse shaper. Parameter scans reveal molecule properties. Finally a full amplitude and phase reconstruction of the soliton molecules is done with a homemade FROG setup. We obtain a good agreement between experimental and numerical results.

[1] P. Rohrmann et al., Scientific Reports 2, 866 (2012)