Showing 2 results for Sahrai
M. Sahrai, H. Noshad, H. Tajalli, B. Arzhang,
Volume 5, Issue 2 (International Journal of Optics and Photonics (IJOP) Vol 5, No 2, Summer-Fall 2011)
Abstract
The time evolution of the quantum entropy in a coherently driven threelevel quantum dot (QD) molecule is investigated. The entanglement of quantum dot molecule and its spontaneous emission field is coherently controlled by the gat voltage and the intensity of applied field. It is shown that the degree of entanglement between a three-level quantum dot molecule and its spontaneous emission fields can be decreased by increasing the tunneling parameter.
Ehsan Naghizadeh Alamdari, Mostafa Sahrai, Reza Kheradmand, Mansour Eslami,
Volume 16, Issue 1 (Winter-Spring 2022)
Abstract
Cavity Solitons (CSs) in an injected broad-area semiconductor laser with intracavity saturable absorber exhibit phase noise free and high-contrast intensity oscillations in period-one dynamical state. The continuous-wave periodic intensity oscillation of the CSs has a frequency well beyond the relaxation oscillation frequency and can be regarded as a photonic microwave source. Here we numerically investigate the effect of linewidth enhancement factor on the dynamical characteristics of CSs in the period-one regime. We show that in a fixed injection amplitude, it has a key role in shifting the oscillation frequencies of the period-one CSs and that its effects strongly depend on the cavity detuning value.
