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.
Original language | English |
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Pages (from-to) | 1207-1210 |
Number of pages | 4 |
Journal | IEEE Photonics Technology Letters |
Volume | 25 |
Issue number | 13 |
DOIs | |
Publication status | Published - 2013 |