Ultrafast all-optical switching by cross-absorption modulation in silicon wire waveguides.
We describe the use of two-photon absorption in submicron silicon wire waveguides for all-optical switching by cross-absorption modulation. Optical pulses of 3.2 ps were successfully converted from high power pump to low power continuous-wave signal with a fast recovery time. High speed operation was based on the induced optical absorption from non-degenerate two-photon absorption inside the waveguides.
Liang
T
T
Nunes
L
L
Sakamoto
T
T
Sasagawa
K
K
Kawanishi
T
T
Tsuchiya
M
M
Priem
G
G
Van Thourhout
D
D
Dumon
P
P
Baets
R
R
Tsang
H
H