NOISE PERFORMANCE EVALUATION OF DISTRIBUTED ERBIUM-DOPED FIBER AMPLIFIERS WITH BIDIRECTIONAL PUMPING AT 1.48-MU-M

被引：10

作者：

CHEN, DN

DESURVIRE, E

机构：

[1] Department of Electrical Engineering, Columbia University, New York City

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1992年 / 4卷 / 01期

关键词：

D O I：

10.1109/68.124874

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An accurate model for unsaturated fiber amplifiers (EDFA's) with fiber background loss is used to determine optimal parameters for distributed amplification in erbium-doped fibers. Pump power at 1.48-mu-m and erbium-doping levels required for transparency are studied for both unidirectional and bidirectional pumping schemes. An optimal erbium absorption coefficient which minimizes the required pump power is found. However, this case corresponds to the highest amplifier noise figure. We conclude that, in practice, distributed erbium-doped fiber amplifiers are not significantly advantageous compared to 980 nm-pumped lumped amplifier schemes.

引用

页码：52 / 55

页数：4

共 9 条

[1] ANALYSIS OF NOISE-FIGURE SPECTRAL DISTRIBUTION IN ERBIUM DOPED FIBER AMPLIFIERS PUMPED NEAR 980 AND 1480 NM [J].