Third-Order Dispersion and Ultrafast-Pulse Propagation in Silicon Wire Waveguides |
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| Authors: | Chen X Panoiu N C Hsieh I Dadap J I Osgood R M |
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| Affiliation: | Microelectron. Sci. Lab., Columbia Univ., New York, NY; |
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| Abstract: | The dynamics of femtosecond (fs) pulse propagation in dispersion engineered silicon-on-insulator (SOI) photonic wires is investigated numerically. For fs pulses propagating in millimeter-long SOI waveguides, the interplay between nonlinear effects, group velocity dispersion (GVD), and the third-order dispersion (TOD) results in significant pulse reshaping. At the zero-GVD (ZGVD) wavelength, TOD causes strong pulse-shape asymmetry in both the temporal and spectral domains. In addition, in the anomalous GVD region near the ZGVD wavelength, soliton-like pulse dynamics is observed |
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