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Proceedings Paper

Effect of Er3+ pairs on the gain and noise figure of EDFAs
Author(s): Jefferson L. Wagener; Paul F. Wysocki; Michel J. F. Digonnet; H. John Shaw
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Paper Abstract

Simulations are used to examine the effects of Er3+ pairs on the characteristics of erbium-doped fiber amplifiers. As the percentage of pairs is increased, the most significant effect is that the small-signal gain steadily drops. On the other hand, the optimum fiber length (for maximum gain at a given pump power) and the saturation power (at optimum length and constant gain) vary minimally up to pair concentrations of 40%. The noise figure shows degradation with increasing pair concentrations that is due entirely to the reduction in gain, i.e., at constant gain a paired and unpaired amplifiers are predicted to have the same noise figure. The main effect of pairs is therefore to increase the amplifier pump power requirement.

Paper Details

Date Published: 15 February 1994
PDF: 6 pages
Proc. SPIE 2073, Fiber Laser Sources and Amplifiers V, (15 February 1994); doi: 10.1117/12.168594
Show Author Affiliations
Jefferson L. Wagener, Edward Ginzton Lab./Stanford Univ. (United States)
Paul F. Wysocki, Edward Ginzton Lab./Stanford Univ. (United States)
Michel J. F. Digonnet, Edward Ginzton Lab./Stanford Univ. (United States)
H. John Shaw, Edward Ginzton Lab./Stanford Univ. (United States)


Published in SPIE Proceedings Vol. 2073:
Fiber Laser Sources and Amplifiers V
Michel J. F. Digonnet, Editor(s)

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