Abstract
We report a photonic-chip-based scheme for all-optical ultrawideband (UWB) pulse generation using a novel all-optical differentiator that exploits cross-phase modulation and birefringence in an As2S3 chalcogenide rib waveguide. Polarity-switchable UWB monocycles and doublets were simultaneously obtained with single optical carrier operation. Moreover, transmission over 40-km fiber of the generated UWB doublets is demonstrated with good dispersion tolerance. These results indicate that the proposed approach has potential applications in multi-shape, multimodulation and long-distance UWB-over-fiber communication systems.
Original language | English |
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Pages (from-to) | 2003-2011 |
Number of pages | 9 |
Journal | Optics Express |
Volume | 21 |
Issue number | 2 |
DOIs | |
Publication status | Published - 28 Jan 2013 |