| Authors: | M. Lauermann, C. Weimann, A. Knopf, W. Heni, R. Palmer, D.L. Elder, W. Bogaerts, J. Leuthold, L.R. Dalton, C. Rembe, W. Freude, C. Koos | | Title: | Integrated optical frequency shifter in silicon-organic hybrid (SOH) technology | | Format: | International Journal | | Publication date: | 5/2016 | | Journal/Conference/Book: | Optics Express
| | Volume(Issue): | 24(11) p.11694-11707 | | DOI: | 10.1364/OE.24.011694 | | Citations: | 37 (Dimensions.ai - last update: 21/4/2024)
17 (OpenCitations - last update: 19/4/2024)
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Abstract
We demonstrate for the first time a waveguide-based frequency shifter on the silicon photonic platform using single-sideband modulation. The device is based on silicon-organic hybrid (SOH) electro-optic modulators, which combine conventional silicon-on-insulator waveguides with highly efficient electro-optic cladding materials. Using small-signal modulation, we demonstrate frequency shifts of up to 10 GHz. We further show large-signal modulation with optimized waveforms, enabling a conversion efficiency of −5.8 dB while suppressing spurious side-modes by more than 23 dB. In contrast to conventional acousto-optic frequency shifters, our devices lend themselves to large-scale integration on silicon substrates, while enabling frequency shifts that are several orders of magnitude larger than those demonstrated with all-silicon serrodyne devices. Related Projects
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