Experimental study of second-harmonic-generation saturation in fibers by phase modulation between the fundamental and second-harmonic writing beams.
We study saturation of photoinduced second-harmonic generation in a Ge-doped silica fiber by modulating the relative phase between the fundamental and second-harmonic writing beams. We shift the phase by pi and present measurements that identify saturation that is due to site depletion and saturation that is due to a backfield.
B
B
Ehrlich-Holl
D M
DM
Krol
R H
RH
Stolen
H W
HW
Tom