NDLI: Dispersion-Compensating Fiber Raman Amplifiers With Step, Parabolic, and Triangular Refractive Index Profiles

Content Provider	IEEE Xplore Digital Library
Author	Chan, A.C.O. Premaratne, M.
Copyright Year	1983
Abstract	This paper presents a comprehensive analysis of the performance of a gain-flattened coaxial fiber Raman amplifier with respect to the refractive index profile. The variation of the dispersion coefficient and the end-end gain spectrum of the coaxial fiber Raman amplifier against the core structure as a function of the step, parabolic, and triangular profiles are analyzed. The analysis shows that the dispersion coefficient is sensitive to the variation of the core structure of the fiber, whereas the effective Raman gain coefficient remains nearly constant as the structure changes. Simulations of transmissions employing the coaxial fiber Raman amplifier with the three different structures are carried out individually, and the results show that the parabolic and triangular profiles perform better than the step profile, where the parabolic profile gives the best performance over 80 km of G.652 fiber, with a transmission rate of 20 Gb/s and a gain ripple of plusmn1 dB. In addition, the analysis shows that the maximum negative dispersion wavelength of the fiber exhibits a linear relationship with the normalized core radius. Hence, a coaxial fiber Raman amplifier providing a possible operation over the L-band is proposed
Sponsorship	IEEE Lasers and Electro-Optics Society Optical Society of America
Starting Page	1190
Ending Page	1197
Page Count	8
File Size	290037
File Format	PDF
ISSN	07338724
Volume Number	25
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-05-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Stimulated emission Refractive index Coaxial components Bandwidth Dispersion Performance analysis Performance gain Operational amplifiers L-band Space technology refractive index profile (RIP) Dispersion compensation gain flattening Raman amplifiers
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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