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  • SOPA


Silicon Optical Parametric Amplifiers


Optical signals propagating in long-haul fiber-optic transmission systems, are impaired by various effects such as chromatic dispersion, self & cross phase modulation (XPM), amplified spontaneous emission, etc. These effects interact with each other and the impairments are accumulated over the transmission link. The compensation of impairments at the receiver is a complicated task requiring a huge amount of processing. One way to overcome this problem is to employ optical inline signal regeneration to avoid the accumulation of impairments.

The project SOPA is an investigation of optical signal regeneration based on Kerr-effect in PIN assisted crystalline silicon (c-Si) nano-waveguides. Using Silicon nano-waveguides very small effective areas are achieved in comparison with larger waveguide systems and highly nonlinear fibers. PIN diode waveguide structures allow for strong reduction of free-carrier lifetime. This results in an efficient use of nonlinear Kerr effect in Silicon at intermediate power levels, i.e. before the onset of two-photon absorption.

Beitrag des IHP

IHP studies the PIN based waveguide structures used for nonlinear signal processing so as to achive maximum four-wave mixing efficiency. To this end, waveguide geometry and light coupling need to be optimized.  




  • TU Berlin

Ausgewählte Publikationen

Isaac Sackey, Erik Liebig, Thomas Richter, Andrzej Gajda, Lars Zimmermann, Klaus Petermann, Colja Schubert, „QPSK phase-regeneration in a silicon waveguide using phase-sensitive processing“ Proceedings European Conference Optical Communications (ECOC), Düsseldorf, 2016


Erik Liebig, Isaac Sackey, Thomas Richter, Andrzej Gajda, Anna Peczek, Lars Zimmermann, Klaus Petermann, Colja Schubert; “Performance Evaluation of a Silicon Waveguide for Phase Regeneration of a QPSK Signal”, IEEE Journal of Lightwave Technology, 35(6), 1149-56, 2017


I. Sackey, A. Gajda, A. Peczek, E. Liebig, L. Zimmermann, K. Petermann, C. Schubert, “1.024 Tb/s wavelength conversion in a silicon waveguide with reverse-biased p-i-n junction”, Optics Express, 2017 (accepted for publication)

Das Gebäude und die Infrastruktur des IHP wurden finanziert vom Europäischen Fonds für regionale Entwicklung, von der Bundesregierung und vom Land Brandenburg.