Pump Effect by Injected C-band Laser in L-band EDFA 


Vol. 29,  No. 5, pp. 484-491, May  2004


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  Abstract

C-band pumping effect appears in L-band EOFA because the absorption in C-band occurs dominant under the condition of such a low average population inversion. In this paper, we show how the C-band pumping effect depends on 980nm pump power, the C-band wavelength, and its input power. The C-band pumping is caused by absorbing C-band injection or backward spontaneous emission power through EOF. If the same small signal condition is given by a C-band pump, the C-band pump of a long wavelength is good for the saturation and noise characteristics of L-band signal. Finally, it is considered that in the aspect of saturation characteristics, C-band compensation is not so much efficient as L-band in Gain-Clamped L-band EOFA having a lossy

resonator.

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  Cite this article

[IEEE Style]

I. Kim, D. Kim, C. Kim, "Pump Effect by Injected C-band Laser in L-band EDFA," The Journal of Korean Institute of Communications and Information Sciences, vol. 29, no. 5, pp. 484-491, 2004. DOI: .

[ACM Style]

Ik-Sang Kim, Dogng-Uk Kim, and Chang-Bong Kim. 2004. Pump Effect by Injected C-band Laser in L-band EDFA. The Journal of Korean Institute of Communications and Information Sciences, 29, 5, (2004), 484-491. DOI: .

[KICS Style]

Ik-Sang Kim, Dogng-Uk Kim, Chang-Bong Kim, "Pump Effect by Injected C-band Laser in L-band EDFA," The Journal of Korean Institute of Communications and Information Sciences, vol. 29, no. 5, pp. 484-491, 5. 2004.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880