title: Ultrafast and bias-free all-optical wavelength conversion using III-V-on-silicon technology.
abstract: Using a 7.5 μm diameter disk fabricated with III-V-on-silicon fabrication technology, we demonstrate bias-free all-optical wavelength conversion for non-return-to-zero on-off keyed pseudorandom bit sequence (PRBS) data at the speed of 10 Gbits/s with an extinction ratio of more than 12 dB. The working principle of such a wavelength converter is based on free-carrier-induced refractive index modulation in a pump-probe configuration. We believe it to be the first bias-free on-chip demonstration of all-optical wavelength conversion using PRBS data. All-optical gating measurements in the pump-probe configuration with the same device have revealed that it is possible to achieve wavelength conversion beyond 20 Gbits/s.
authors: Photonics Research Group, INTEC Department, Ghent University-IMEC, Sint-Pietersnieuwstraat 41, 9000 Ghent, Belgium. Rajesh.Kumar@intec.ugent.be
authors: Rajesh
authors: R
authors: Kumar
authors: Thijs
authors: T
authors: Spuesens
authors: Pauline
authors: P
authors: Mechet
authors: Pragati
authors: P
authors: Kumar
authors: Oded
authors: O
authors: Raz
authors: Nicolas
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authors: Olivier
authors: Jean-Marc
authors: JM
authors: Fedeli
authors: Gunther
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authors: Roelkens
authors: Roel
authors: R
authors: Baets
authors: Dries
authors: D
authors: Van Thourhout
authors: Geert
authors: G
authors: Morthier