40 GBd 16QAM Signaling at 160 Gb/s in a Silicon-Organic Hybrid Modulator

We demonstrate for the first time generation of 16-state quadrature amplitude modulation (16QAM) signals at a symbol rate of 40 GBd using silicon-based modulators. Our devices exploit silicon-organic hybrid integration, which combines silicon-on-insulator slot waveguides with electro-optic cladding...

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Bibliographic Details
Published in:Journal of lightwave technology 2015-03, Vol.33 (6), p.1210-1216
Main Authors: Lauermann, Matthias, Wolf, Stefan, Schindler, Philipp C., Palmer, Robert, Koeber, Sebastian, Korn, Dietmar, Alloatti, Luca, Wahlbrink, Thorsten, Bolten, Jens, Waldow, Michael, Koenigsmann, Michael, Kohler, Matthias, Malsam, Dimitri, Elder, Delwin L., Johnston, Peter V., Phillips-Sylvain, Nathaniel, Sullivan, Philip A., Dalton, Larry R., Leuthold, Juerg, Freude, Wolfgang, Koos, Christian
Format: Article
Language:English
Subjects:
Bit error rate
Devices
Electro-optic modulators
Electrooptic modulators
Electrooptical waveguides
Modulators
nonlinear optical devices
Phase shift keying
Phase shifters
photonic integrated circuits
Polarization
Quadrature amplitude modulation
Silicon
Symbols
Wavelengths
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Summary:We demonstrate for the first time generation of 16-state quadrature amplitude modulation (16QAM) signals at a symbol rate of 40 GBd using silicon-based modulators. Our devices exploit silicon-organic hybrid integration, which combines silicon-on-insulator slot waveguides with electro-optic cladding materials to realize highly efficient phase shifters. The devices enable 16QAM signaling and quadrature phase shift keying at symbol rates of 40 GBd and 45 GBd, respectively, leading to line rates of up to 160 Gb/s on a single wavelength and in a single polarization. This is the highest value demonstrated by a silicon-based device up to now. The energy consumption for 16QAM signaling amounts to less than 120 fJ/bit-one order of magnitude below that of conventional silicon photonic 16QAM modulators.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2015.2394211