Characterization of Turn-On Time Delay in a Fiber Grating Fabry–Perot Lasers

Hisham, H.K. and Mahdiraji, Ghafour Amouzad and Abas, A.F. and Mahdi, M.A. and Adikan, Faisal Rafiq Mahamd (2012) Characterization of Turn-On Time Delay in a Fiber Grating Fabry–Perot Lasers. IEEE Photonics Journal, 4 (5). pp. 1662-1678. ISSN 1943-0655, DOI

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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.

Item Type: Article
Additional Information: Hisham, H. K. Mahdiraji, G. A. Abas, A. F. Mahdi, M. A. Adikan, F. R. Mahamd
Uncontrolled Keywords: External-cavity semiconductor lasers; fiber Bragg grating (FBG); turn-on time delay
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Mr. Mohammed Salim Abd Rahman
Date Deposited: 04 Feb 2013 03:47
Last Modified: 02 Dec 2019 04:27

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