Cross-phase modulation-induced spectral and temporal effects on co-propagating femtosecond pulses in silicon photonic wires.
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.
Hsieh
I-Wei
IW
Chen
Xiaogang
X
Dadap
Jerry I
JI
Panoiu
Nicolae C
NC
Osgood
Richard M
RM
McNab
Sharee J
SJ
Vlasov
Yurii A
YA