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Authors: J. Safioui, B. Kuyken, S. Selvaraja, W. Bogaerts, D. Van Thourhout, G. Roelkens, P. Emplit, R. Baets, S. Massar
Title: Continuous-wave parametric conversion in hydrogenated amorphous photonic wire
Format: International Conference Proceedings
Publication date: 11/2012
Journal/Conference/Book: Proceedings of the 2012 Annual Symposium of the IEEE Photonics Society Belenux Chapter
Volume(Issue): p.81-84
Location: Belgium
Internal Reference: [N-1357]
Download: Download this Publication (578KB) (578KB)

Abstract

We exploit the high ƒÔ(3) nonlinearity present in
hydrogenated amorphous silicon
nanophotonic waveguides to demonstrate frequency conversion at telecommunication wavelengths using pump and signal that are both continuous-wave. We reach a frequency conversion efficiency close to -34dB having a on-chip 13mW pump power in a low-loss 1cm long silicon photonic wire. Thanks to the ultra-low pump power and optimised hydrogen concentration during fabrication, optical degradation during illumination was reduced. The nonlinear refractive index is estimated for a set of hydrogenated amorphous silicon waveguides with different hydrogen concentrations by the four-wave mixing process, yielding a maximum value of n2=5.76~10-17 m2⁄W.


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