A 40 Gbit/s optical link on a 300-mm silicon platform

We demonstrated 40 Gbit/s optical link by coupling a silicon (Si) optical modulator to a germanium (Ge) photo-detector from two separate photonic chips. The optical modulator was based on carrier depletion in a pn diode integrated in a 950-µm long Mach-Zehnder interferometer. The Ge photo-detector w...

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Bibliographic Details
Published in:Optics express 2014-03, Vol.22 (6), p.6674-6679
Main Authors: Marris-Morini, D, Virot, L, Baudot, C, Fédéli, J-M, Rasigade, G, Perez-Galacho, D, Hartmann, J-M, Olivier, S, Brindel, P, Crozat, P, Bœuf, F, Vivien, L
Format: Article
Language:English
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Summary:We demonstrated 40 Gbit/s optical link by coupling a silicon (Si) optical modulator to a germanium (Ge) photo-detector from two separate photonic chips. The optical modulator was based on carrier depletion in a pn diode integrated in a 950-µm long Mach-Zehnder interferometer. The Ge photo-detector was a lateral pin diode butt coupled to a silicon waveguide. The overall loss, which is mainly due to coupling (3 grating couplers times ~4 dB) was estimated to be lower than 18 dB. That also included modulator loss (4.9-dB) and propagation loss (
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.22.006674