Analysis of nonlinear pulse propagation characteristics in semiconductor optical amplifier for different input pulse shapes

Barua, Suchi and Das, Narottam and Nordholm, Sven and Razaghi, Mohammad (2015) Analysis of nonlinear pulse propagation characteristics in semiconductor optical amplifier for different input pulse shapes. International Journal of Electrical, Computer, Electronics and Communication Engineering, 9 (1). pp. 16-20. ISSN 1307-6892

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Abstract

This paper presents nonlinear pulse propagation characteristics for different input optical pulse shapes with various input pulse energy levels in semiconductor optical amplifiers. For simulation of nonlinear pulse propagation, finite-difference beam propagation method is used to solve the nonlinear Schrödinger equation. In this equation, gain spectrum dynamics, gain saturation are taken into account which depends on carrier depletion, carrier heating, spectral-hole burning, group velocity dispersion, self-phase modulation and two photon absorption. From this analysis, we obtained the output waveforms and spectra for different input pulse shapes as well as for different input energies. It shows clearly that the peak position of the output waveforms are shifted toward the leading edge which due to the gain saturation of the SOA for higher input pulse energies. We also analyzed and compared the normalized difference of full-width at half maximum for different input pulse shapes in the SOA.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2015 World Academy of Science, Engineering and Technology. Open Access Journal. This publication is copyright. It may be reproduced in whole or in part for the purposes of study, research, or review, but is subject to the inclusion of an acknowledgment of the source.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Date Deposited: 07 Jun 2016 03:59
Last Modified: 01 Aug 2016 01:13
Uncontrolled Keywords: finite-difference beam propagation method; pulse shape; pulse propagation; semiconductor optical amplifier
Fields of Research : 09 Engineering > 0906 Electrical and Electronic Engineering > 090699 Electrical and Electronic Engineering not elsewhere classified
Socio-Economic Objective: B Economic Development > 89 Information and Communication Services > 8999 Other Information and Communication Services > 899999 Information and Communication Services not elsewhere classified
URI: http://eprints.usq.edu.au/id/eprint/28463

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