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

Jeong Hyeon Lee | Zendy; You Min Chang | Zendy; YoungGeun Han | Zendy; Sang Hyuck Kim | Zendy; Sang Bae Lee | Zendy

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

Author(s) -

Jeong Hyeon Lee,

You Min Chang,

YoungGeun Han,

Sang Hyuck Kim,

Sang Bae Lee

Publication year - 2004

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/opex.12.006594

Subject(s) - optical amplifier , materials science , optics , amplifier , dispersion (optics) , raman scattering , raman spectroscopy , raman amplification , optoelectronics , physics , laser , cmos

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.

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