Low threshold current density of 620 nm band MQW-SCH AlGaInP semiconductor lasers with Mg doped AlInP cladding layer

1991 ◽  
Vol 27 (17) ◽  
pp. 1569 ◽  
Author(s):  
H. Murata ◽  
Y. Terui ◽  
M. Saitoh ◽  
Y. Satoh ◽  
R. Terasaki
2018 ◽  
Vol 65 (1) ◽  
pp. 38
Author(s):  
Halima Bouchenafa ◽  
Boucif Benichou ◽  
Badra Bouabdallah

In this paper, a theoretical model is used to study the optical gain characteristics of  quantum dot lasers. The model is based on the density matrix theory of semiconductor lasers with relaxation broadening. The effect of doping with varying the side lengths of the box in the structure is taken into account. A comparative study of the gain spectra of p-doped, undoped and n-doped structures of  cubic quantum-dot (QD) laser respectively, is presented for various side lengths. The variation of peak gain on carrier density is also presented. The effect of side length on the variation in modal gain versus current density is plotted too. The results indicate that the p type doping is efficient to reach a better optical gain value, and to achieve low threshold current densities compared with undoped and  n-doped structures, and the optimum value for quantum dot width to achieve the lower threshold current density for the three cases is L=100A .   


1979 ◽  
Vol 18 (9) ◽  
pp. 1795-1805 ◽  
Author(s):  
Yoshio Itaya ◽  
Yasuharu Suematsu ◽  
Shinya Katayama ◽  
Katsumi Kishino ◽  
Shigehisa Arai

2005 ◽  
pp. 1663-1668 ◽  
Author(s):  
Rui-ying Zhang ◽  
Wei Wang ◽  
Fan Zhou ◽  
Jing Bian ◽  
Ling-juan Zhao ◽  
...  

1989 ◽  
Vol 1 (8) ◽  
pp. 205-208 ◽  
Author(s):  
D. Botez ◽  
L.M. Zinkiewicz ◽  
T.J. Roth ◽  
L.J. Mawst ◽  
G. Peterson

2013 ◽  
Vol 52 (6R) ◽  
pp. 060202 ◽  
Author(s):  
Yusuke Hayashi ◽  
Ryo Osabe ◽  
Keita Fukuda ◽  
Yuki Atsumi ◽  
JoonHyun Kang ◽  
...  

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