Performance limitations of high-power DFB fiber lasers

被引：13

作者：

Ylä-Jarkko, KH ^{[1
]}

Grudinin, AB ^{[1
]}

机构：

[1] Southampton Photon Inc, Southampton SO16 7NS, Hants, England

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2003年 / 15卷 / 02期

关键词：

distributed feedback lasers; erbium devices; optical amplifiers; optical fiber devices; optical fiber lasers;

D O I：

10.1109/LPT.2002.806827

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：

In this letter, we experimentally study several different configurations of high-power single-frequency sources based on distributed-feedback fiber laser (DFB FL). In particular, we have compared two schemes in terms of pumping efficiency, relative intensity noise (RIN) and optical signal-to-noise ratio (OSNR): directly pumped;DFB FLs pumped by a high-power fiber-based pump source (stand-alone DFB FL) and a combination of a DFB FL and a power amplifier (amplified DFB FL). At the output powers below, 40 mW; a stand-alone DFB FL has the highest OSNR (> 63 dB) and the lowest RIN (< -165 dB/Hz). The net efficiency of a stand-alone DFB FL can be doubled by using an amplified DFB FL at the expense of degraded OSNR and RIN. It is also shown that RIN below -160 dB/Hz and OSNR > 60 dB can be achieved, by an amplified DFB with output power greater than 1 W.

引用

页码：191 / 193

页数：3

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