title: Cross-phase modulation-induced spectral and temporal effects on co-propagating femtosecond pulses in silicon photonic wires.
abstract: By performing time-resolved experiments and power-dependent measurements using femtosecond pulses inside submicron cross-section Si photonic-wire waveguides, we demonstrate strong cross-phase modulation (XPM) effects. We find that XPM in Si wires can be significant even for low peak pump powers, i.e., ~15 mW for pi phase shift. Our experimental data closely match numerical simulations using a rigorous coupled-wave theoretical treatment. Our results suggest that XPM is a potentially useful approach for all-optical control of photonic devices in Si wires.
authors.forename: I-Wei
authors.initials: IW
authors.lastname: Hsieh
authors.forename: Xiaogang
authors.initials: X
authors.lastname: Chen
authors.forename: Jerry I
authors.initials: JI
authors.lastname: Dadap
authors.forename: Nicolae C
authors.initials: NC
authors.lastname: Panoiu
authors.forename: Richard M
authors.initials: RM
authors.lastname: Osgood
authors.forename: Sharee J
authors.initials: SJ
authors.lastname: McNab
authors.forename: Yurii A
authors.initials: YA
authors.lastname: Vlasov