NDLI: Effect of localized loss on distributed fiber Raman amplifiers

Content Provider	IEEE Xplore Digital Library
Author	Seung Kwan Kim Sun Hyok Chang Jin Soo Han Moo Jung Chu
Copyright Year	2002
Description	Author affiliation: Opt. Commun. Dept., ETRI, Daejon, South Korea (Seung Kwan Kim; Sun Hyok Chang; Jin Soo Han; Moo Jung Chu)
Abstract	The effect of localized loss in fiber transmission line on DFRA has been examined using computer simulation based on the measured Raman gain coefficient. The output power level of DFRA strongly depended not only on the position of localized loss but also on the loss level. The impact was most serious when the loss point was close to the signal output side in OLA site. Therefore, it is necessary to measure OTDR trace of the transmission line to figure out the loss distribution before DFRA design or deployment. However, the Raman gain profile of DFRA can be made robust against loss change simply by balancing the C/L-band output power as long as the localized loss is outside the effective length of pump. This fact provides DFRA with design flexibility and allows the use of a fixed gain flattening filter.
Sponsorship	IEEE/Commun. Soc. IEEE/Lasers & Electro-Opt. Soc. Opt. Soc. America
Starting Page	639
Ending Page	640
File Size	210044
Page Count	2
File Format	PDF
ISBN	1557527016
DOI	10.1109/OFC.2002.1036616
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-03-17
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Optical Society of America
Subject Keyword	Stimulated emission Distributed amplifiers Propagation losses Power transmission lines Transmission line measurements Loss measurement Power generation Computer simulation Gain measurement Power amplifiers
Content Type	Text
Resource Type	Article

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