Title :
Strategies to improve optical gain and waveguide loss in SiGe quantum cascade devices
Author :
Tsujino, S. ; Scheinert, M. ; Sigg, H. ; Grützmacher, D. ; Faist, J.
Author_Institution :
Lab. for Micro- & Nanotechnol., Paul Scherrer Inst., Villigen, Switzerland
Abstract :
Strain-compensated p-type SiGe quantum cascade structures are promising candidates to realize an efficient Si-based light source. Here we report strategies to improve the optical gain and waveguide loss to develop a SiGe quantum cascade laser.
Keywords :
Ge-Si alloys; optical losses; quantum cascade lasers; semiconductor materials; waveguide lasers; Si-based light source; SiGe; SiGe quantum cascade devices; SiGe quantum cascade laser; SiGe quantum cascade structures; optical gain; p-type SiGe structures; strain-compensated SiGe; waveguide loss; Absorption; Contacts; Current density; Germanium silicon alloys; Laser transitions; Optical devices; Optical losses; Optical waveguides; Quantum cascade lasers; Silicon germanium;
Conference_Titel :
Group IV Photonics, 2005. 2nd IEEE International Conference on
Print_ISBN :
0-7803-9070-9
DOI :
10.1109/GROUP4.2005.1516383
