Document Type
Article (Restricted)
Publication Date
1-1-2012
Abstract
In this paper, turn-on time delay characteristics of a fiber grating Fabry-Perot (FGFP) laser are numerically investigated by considering all the carrier recombination rate (CRR) R(N) coefficients (nonradiative, A(nr); radiative, B; and Auger coefficient, C). The results show that the turn-on time delay significantly reduces by increasing the injection current (I-inj) and/or the initial value of carrier density (N-i). Meanwhile, the turn-on time delay increases by increasing the CRR coefficients. However, its effect can be minimized by increasing I-inj and/or N-i. In addition, the turn-on time delay can be reduced by increasing the external optical feedback (OFB) level. Moreover, it is shown that the optimum external-cavity length (L-ext) is 3.1 cm. Furthermore, an antireflection (AR) coating reflectivity value of 1 X 10(-2) is sufficient for the laser to operate at good turn-on time delay and low fabrication complexity. The obtained results can provide an important idea for the practical fabrication of the FGFP laser used in the dense wavelength-division multiplexing (DWDM) systems and optical access networks.
Keywords
External-cavity semiconductor lasers, fiber Bragg grating (FBG), turn-on time delay
Divisions
fac_eng
Publication Title
IEEE Photonics Journal
Volume
4
Issue
5
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Additional Information
Hisham, H. K. Mahdiraji, G. A. Abas, A. F. Mahdi, M. A. Adikan, F. R. Mahamd