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Proceedings Paper

Noise characteristics of erbium-doped fiber amplifiers with signal upconversion and pump-excited-state absorption losses
Author(s): Prita Nair; B. M. Sivaram; J. P. Raina
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Paper Abstract

Dependence of the noise characteristics of high concentration erbium doped fiber amplifiers (EDFA's) on different pumping configurations have been numerically simulated for pump wavelengths of 514.5nm, 532nm, 800nm, 980nm and 1480nm and experimentally studied for the 514.5nm pump wavelength. Our studies show that for highly doped EDFA's with significant upconversion losses, contradirectional pumping scheme offers lower noise figures at high pump powers. When excited state absorption at the pump wavelength dominates over upconversion losses, codirectional pumping gives lower noise figures.

Paper Details

Date Published: 2 May 1997
PDF: 7 pages
Proc. SPIE 2996, Rare-Earth-Doped Devices, (2 May 1997); doi: 10.1117/12.271160
Show Author Affiliations
Prita Nair, Indian Institute of Technology/Madras (India)
B. M. Sivaram, Indian Institute of Technology/Madras (India)
J. P. Raina, Indian Institute of Technology/Madras (India)


Published in SPIE Proceedings Vol. 2996:
Rare-Earth-Doped Devices
Seppo Honkanen, Editor(s)

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