Title :
A Silicon Differential Receiver With Zero-Biased Balanced Detection for Access Networks
Author :
Aamer, M. ; Sotiropoulos, Nikolaos ; Brimont, Antoine ; Fedeli, J.-M. ; Marris-Morini, D. ; Cassan, Eric ; Vivien, L. ; Ribaud, K. ; Grosse, P. ; Hartmann, J.M. ; Vermeulen, D. ; Roelkens, Gunther ; Sanchis, Pablo ; Hakansson, A.
Author_Institution :
Nanotechnol. Center Valencia, Univ. Politec., Valencia, Spain
Abstract :
We present an optimized differential receiver in silicon with a minimized footprint and balanced zero-biased Ge photodiodes. The receiver integrates a delay-line with a 2×4 multimode interferometer 90° hybrid and two balanced photodiodes for differential quadrature phase-shift keying demodulation. Two receivers are tested, for 10 and 20 Gb/s operation, and well opened eye-diagrams and symbol constellations are obtained with error vector magnitude values as low as 12.5% and 19.57%, respectively. The results confirm the potential of integrated silicon receivers to become key building blocks for future passive optical access networks based on advanced modulation formats.
Keywords :
demodulation; light interferometers; optical delay lines; optical fibre subscriber loops; optical modulation; optical receivers; passive optical networks; photodiodes; quadrature phase shift keying; silicon; vectors; Si; access networks; advanced modulation formats; bit rate 10 Gbit/s; bit rate 20 Gbit/s; delay line; differential quadrature phase-shift keying demodulation; error vector magnitude; integrated silicon receivers; multimode interferometer; passive optical access networks; photodiodes; silicon differential receiver; symbol constellations; well opened eye-diagrams; zero-biased balanced detection; Integrated optics; balanced detectors; phase-shift keying; silicon photonics;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2262931
