Title :
Assessment of the Excited Carrier absorption losses in Si-nc rib-waveguides
Author :
Navarro-Urrios, D. ; Pitanti, A. ; Ferraioli, L. ; Daldosso, N. ; Gourbilleau, F. ; Rizk, R. ; Pavesi, Lorenzo
Author_Institution :
Dipt. di Fis., Univ. di Trento, Trento
Abstract :
A detailed study of the free carrier absorption losses at 1.5 mum has been performed on silicon-nanocrystal rib waveguides by pumping at 532 nm. At the highest photon flux, the measured losses were about 6 dB/cm. We demonstrate that the dynamics of the carrier absorption is that of the luminescence.
Keywords :
elemental semiconductors; nanostructured materials; optical losses; optical materials; optical waveguides; photoluminescence; rib waveguides; silicon; excited carrier absorption losses; free carrier absorption losses; luminescence; photon flux; silicon-nanocrystal rib waveguides; Electromagnetic wave absorption; Laser excitation; Nonlinear optics; Optical pumping; Optical waveguides; Pulse measurements; Pump lasers; Silicon; Stimulated emission; Waveguide lasers;
Conference_Titel :
Group IV Photonics, 2007 4th IEEE International Conference on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-0934-1
DOI :
10.1109/GROUP4.2007.4347669
