Abstract

The noise figure of upconversion-pumped erbium-doped fiber amplifiers for operation in the first telecommunications window at approximately 850 nm is examined theoretically. It is shown that, within the constraints of the model, the lower limit in heavily pumped small-signal operation is 3 dB and that values close to this limit can be achieved at acceptable launched pump powers. The influence of a saturating signal is also investigated.

© 1994 Optical Society of America

Erbium-doped fiber amplifiers: theory of upconversion-pumped operation with a signal wavelength of 850 nm

Bernard Calvas and Paul Urquhart
J. Opt. Soc. Am. B 10(4) 666-676 (1993)

Analysis of noise figure spectral distribution in erbium doped fiber amplifiers pumped near 980 and 1480 nm

E. Desurvire
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Distributed erbium-doped fiber amplifier for soliton transmission

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