Thin-film thermo-optic Ge(x)Si(1-x) Mach-Zehnder interferometer.
We report on the design and fabrication of Ge(x)Si(1-x) Mach-Zehnder interferometers based on the thermo-optic effect. The modulators exhibit 8 dB of extinction with a pi-phase-shift power requirement, P(pi), of 245 mW. The 3-dB bandwidth of these thermo-optic devices is 88 kHz. Finally, we present calculations indicating the effect of various parameters on the modulation of the Mach-Zehnder interferometer.
R A
RA
Mayer
K H
KH
Jung
W D
WD
Lee
D L
DL
Kwong
J C
JC
Campbell