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

Authors
Lee, JHChang, YMHan, YGKim, SHLee, SB
Issue Date
2004-12-27
Publisher
OPTICAL SOC AMER
Citation
OPTICS EXPRESS, v.12, no.26, pp.6594 - 6599
Abstract
We experimentally investigate transient effects of our proposed single pump, dispersion-compensating Raman/EDFA hybrid amplifier recycling residual Raman pump in a cascaded EDF under the situation of multi-channel add/drop, and then demonstrate the use of a FBG based alloptical 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 similar to2 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. (C) 2004 Optical Society of America.
Keywords
DOPED FIBER AMPLIFIERS; AMPLIFICATION; DOPED FIBER AMPLIFIERS; AMPLIFICATION
ISSN
1094-4087
URI
https://pubs.kist.re.kr/handle/201004/136909
DOI
10.1364/OPEX.12.006594
Appears in Collections:
KIST Article > 2004
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