%0 Journal Article
%T Effects of Coupling Coefficient on Static Properties of Bistable Qws-DFB Semiconductor Laser Amplifiers
%A Mahmoud Aleshams
%J PIER    C
%D 2009
%I EMW Publishing
%R 10.2528/PIERC09062401
%X We previously analyzed the effects of trapezoidal tapered gratings on the dispersive bistable characteristics of a quarter wavelength phase-shifted distributed feedback semiconductor laser amplifier (QWS-DFB-SLA). In this paper, we analyze the effects of coupling coefficient on the static bistable characteristics of a QWS-DFB SLA with a tapered or a non-tapered grating. Simulation results show that any change in the coupling coefficient can change the characteristics such as the spectral range of low-threshold bistable switching and the on-off switching contrast.
%U http://www.jpier.org/pierc/pier.php?paper=09062401