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 language | English |
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Pages (from-to) | 6594-6599 |
Number of pages | 6 |
Journal | Optics Express |
Volume | 12 |
Issue number | 26 |
DOIs | |
State | Published - Dec 2004 |