Title :
Strain tuning of pure Germanium for Franz-Keldysh electro-absorption modulation
Author :
Nguyen, Luan M. ; Kuroyanagi, Ryo ; Fushimi, Hiroshi ; Tsuchizawa, Tai ; Yamada, Koji ; Wada, Kazuyoshi
Author_Institution :
Dept. of Mater. Eng., Univ. of Tokyo, Tokyo, Japan
Abstract :
We have demonstrated 35 nm blueshift of transmission spectra by compressive stress in Germanium waveguide as a breakthrough to realize waveguide-integrated pure Ge Franz-Keldysh electro-absorption modulators at 1550 nm without alloys of Si.
Keywords :
electro-optical modulation; electroabsorption; elemental semiconductors; germanium; infrared spectra; integrated optoelectronics; optical waveguides; spectral line shift; Ge; blue shift; compressive stress; strain tuning; transmission spectra; waveguide-integrated pure germanium Franz-Keldysh electro-absorption modulators; wavelength 1550 nm; Absorption; Plasma measurements; Silicon compounds; Stress; Stress measurement; Surface treatment; Surface waves;
Conference_Titel :
Group IV Photonics (GFP), 2013 IEEE 10th International Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4673-5803-3
DOI :
10.1109/Group4.2013.6644433
