Effects of signal seeding on long-wavelength-band Er3+-doped fiber amplifiers

Mahdi, M.A. and Adikan, Faisal Rafiq Mahamd and Poopalan, P. and Selvakennedy, S. and Ahmad, Harith (2001) Effects of signal seeding on long-wavelength-band Er3+-doped fiber amplifiers. Optical Engineering (OE), 40 (2). pp. 186-192. ISSN 0091-3286

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Official URL: https://doi.org/10.1117/1.1336528

Abstract

A study of gain improvement in the long-wavelength band (L-band) by a seeding signal from the conventional-wavelength band (C-band) is presented. The seeding signal reduces losses through amplified spontaneous emission and supplies energy for L-band amplification in the underpumped region. Gain improvement is observed for a copumped configuration, where the L-band and seeding signal are colaunched together with minimal noise figure penalty when an optimized seeding signal is used. The seeding signal boosts the L-band gain profile in the underpumped region to the flat-gain profile with gain flatness of less than 1 dB. High flat-gain values of 24 dB with gain variation of less than 0.9 dB when a seeding signal at 1555 nm is applied to the L-band amplifier pumped by only 105 mW from a 980 nm pump laser, A gain improvement of 52 dB is obtained at 1580 nm with this architecture. (C) 2001 Society of Photo-Optical Instrumentation Engineers.

Item Type: Article
Additional Information: Mahdi, MA Adikan, FRM Poopalan, P Selvakennedy, S Ahmad, H
Uncontrolled Keywords: Erbium gain improvement noise figure penalty absorption energy transfer seeding signal broad-band wdm transmission gain 1.6-mu-m
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Mr. Mohammed Salim Abd Rahman
Date Deposited: 07 Feb 2013 01:26
Last Modified: 11 Oct 2018 02:42
URI: http://eprints.um.edu.my/id/eprint/4708

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