Enhancement of power conversion efficiency for an L-band EDFA with a secondary pumping effect in the unpumped EDF section

被引：87

作者：

Lee, JH ^{[1
]}

Ryu, UC

Ahn, SJ

Park, NK

机构：

[1] Seoul Natl Univ, Sch Elect Engn, Opt Commun Syst Lab, Seoul 151742, South Korea

[2] Korea Elect Power Res Inst, Taejon 305380, South Korea

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1999年 / 11卷 / 01期

关键词：

erbium-doped fiber amplifiers (EDFA's); optical fiber communication; wavelength-division-multiplexed (WDM) systems;

D O I：

10.1109/68.736384

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：

A novel structure, which utilizes detrimental backward amplified spontaneous emission as a secondary pump source is suggested for a silica-based fiber amplifier, operating at a wavelength range from 1570 to 1610 mn, Ey using the secondary pumping effect from the strong, wasted 1550-mn band amplified spontaneous emission power in the unpumped section of the erbiun-doped fiber, it was possible to achieve a considerable improvement in power conversion efficiency, increasing small-signal gain by more than 4 dB, The suggested pump structure was also shown to be useful in overall conversion efficiency improvement for L-band EDPA's, regardless of pump wavelength choice.

引用

页码：42 / 44

页数：3

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