Insciences J. 2012, 2(2), 52-62;doi:10.5640/insc.020252

Full Research Paper, Section: Nanotechnology

CdSe/ZnSe Quantum-Dot Semiconductor Optical Amplifiers

Muaffak A. Al-Mossawi¹, Ali Gehad Al-Shatravi², Amin H. Al-Khursan¹

¹ Nassiriya Nanotechnology Research Laboratory ( NNRL ) , Science College, Thi-Qar University, Nassiriya, Iraq.
² Physics Dept., Science College, Thi-Qar University, Nassiriya, Iraq.

^* Author to whom correspondence should be addressed.

Published: April 26, 2012

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Abstract

CdSe/ZnSe quantum dot semiconductor optical amplifier is studied theoretically where the core/shell structure is discussed. Absorption and emission coefficients and noise figure are studied. The emission coefficient obtained is higher than the similar structure of InGaAs/InP. A 25dB gain is obtained. A low noise figure (5.5dB) is obtained. A high output power can be obtained. The simulated structure can be used to develop photonic integrated circuits.

CdSe/ZnSe, Linear absorption coefficient, Linear emission coefficient, Noise figure, Rate equations ( REs)