Abstract
The influence of nonuniform current injection along the active region, on the linear operation of a quantum-dot semiconductor optical amplifier (QD-SOA) is investigated. For this purpose, we have utilized some functions to generate various nonuniform current injection profiles. These profiles have been considered in our numerical calculations, where the rate equation model is employed to construct different characteristics of the QD-SOA. We have found that the gain, as well as the crosstalk, of a QD-SOA is closely associated to the variance of the carrier density along the cavity. Simulation results show that nonuniform current injection can be used as a technique for gain enhancement as well as crosstalk suppression.
© 2011 Optical Society of America
Full Article | PDF ArticleMore Like This
Yu Yi, Huang Lirong, Xiong Meng, Tian Peng, and Huang Dexiu
J. Opt. Soc. Am. B 27(11) 2211-2217 (2010)
Omnia M. Nawwar, Ahmed Emara, Moustafa H. Aly, and Ali M. Okaz
Appl. Opt. 55(35) 9978-9985 (2016)
Ahmed H. Flayyih and Amin H. Al-Khursan
Appl. Opt. 52(14) 3156-3165 (2013)