Dynamic properties of single pump, dispersion-compensating Raman/EDFA hybrid amplifier recycling residual Raman pump
Optics Express, Vol. 12, Issue 26, pp. 6594-6599 (2004)
http://dx.doi.org/10.1364/OPEX.12.006594
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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 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.
© 2004 Optical Society of America
OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.2410) Fiber optics and optical communications : Fibers, erbium
(190.5650) Nonlinear optics : Raman effect
ToC Category:
Research Papers
History
Original Manuscript: November 16, 2004
Revised Manuscript: December 13, 2004
Published: December 27, 2004
Citation
Ju Lee, You Chang, Young-Geun Han, Sang Kim, and Sang Lee, "Dynamic properties of single pump, dispersion-compensating Raman/EDFA hybrid amplifier recycling residual Raman pump," Opt. Express 12, 6594-6599 (2004)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-12-26-6594
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