Dynamic properties of single pump, dispersion-compensating Raman/EDFA hybrid amplifier recycling residual Raman pump

Ju Han Lee, You Min Chang, Young Geun Han, Sang Hyuck Kim, Sang Bae Lee

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

We experimentally investigate transient effects of our proposed single pump, dispersion-compensating Raman/EDFA hybrid amplifier recycling residual Raman pump in a cascaded EOF under the situation of multi-channel add/drop, and then demonstrate the use of a FBG based all-optical gain-clamping technique to efficiently suppress the output transients. The results show that the proposed hybrid amplifier has a significantly long transient response time of ∼2 ms compared to the previous reported value of the conventional separate pump, Raman/EDFA hybrid amplifiers due to both the low-pumping regime operation of 14XX nm pumped EDFA section and the additional pump transit time through the 12.6 km long dispersion compensating fiber to reach the EDF. However, using a simple gain-clamping method we obtain an almost, transient-free operation.

Original languageEnglish
Pages (from-to)6594-6599
Number of pages6
JournalOptics Express
Volume12
Issue number26
DOIs
StatePublished - Dec 2004

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