Theory of Direct-Transition Optical Gain in a Novel n+ Doping Tensile-Strained Ge/GeSiSn-on-Si Quantum well Laser

2013 ◽  
Vol 746 ◽  
pp. 197-202 ◽  
Author(s):  
W.J. Fan

The band structure and optical gain of a novel n+ doping tensile-strained Ge/GeSiSn quantum well are investigated by using an 8-band k·p method. The doping effect in Ge quantum well and the effect of the carrier leakage into L valley on the optical gain will also be considered. The E-k dispersion curves and optical gain spectra will be obtained and discussed.

2007 ◽  
Vol 31 ◽  
pp. 95-97
Author(s):  
B. Dong ◽  
W.J. Fan ◽  
Y.X. Dang

The band structures and optical gain spectra of GaAsSbN/GaAs compressively strained quantum well (QW) were studied using 10-band k.p approach. We found that a higher Sb and N composition in the quantum well and a thicker well give longer emitting wavelength. The result also shows a suitable combination of Sb and N composition, and QW thickness can achieve 1.3 μm lasing. And, the optical gain spectra with different carrier concentrations will be obtained.


2008 ◽  
Vol 5 (6) ◽  
pp. 2126-2128 ◽  
Author(s):  
Kazunobu Kojima ◽  
Mitsuru Funato ◽  
Yoichi Kawakami ◽  
Harald Braun ◽  
Ulrich Schwarz ◽  
...  

2013 ◽  
Vol 377 (7) ◽  
pp. 582-586 ◽  
Author(s):  
E.L. Albuquerque ◽  
U.L. Fulco ◽  
M.S. Vasconcelos ◽  
P.W. Mauriz

1997 ◽  
Vol 484 ◽  
Author(s):  
K. S. Chan ◽  
Michael C. Y. Chan

AbstractIn this paper, we study the interdiffusion of tensile strained GaAsyPi.y /A10 33Ga0 67As single QW structures with a well width of 60Å. Different P concentrations in the as-grown well are chosen to obtain different tensile strains in the QW. Interdiffusion induces changes in the tensile strains and confinement potentials, which consequently change the valence band structure and the optical gain.


2008 ◽  
Vol 40 (5-6) ◽  
pp. 295-299 ◽  
Author(s):  
Anusha Venkatachalam ◽  
P. D. Yoder ◽  
Benjamin Klein ◽  
Aditya Kulkarni

Author(s):  
E. L. Albuquerque ◽  
U. L. Fulco ◽  
M. S. Vasconcelos ◽  
P. W. Mauriz

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