Gain enhanced L-band optical fiber amplifiers and tunable fiber lasers with erbium-doped fibers

被引:29
作者
Chen, H [1 ]
Leblanc, M [1 ]
Schinn, GW [1 ]
机构
[1] EXFO Electroopt Engn Inc, Res Div, Quebec City, PQ G1M 3G7, Canada
关键词
erbium-doped fiber; L-band optical amplifier; ASE; wavelength division multiplexing; fiber lasers;
D O I
10.1016/S0030-4018(02)02289-7
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We report on the experimental investigation of gain enhanced L-band erbium-doped fiber amplifiers (EDFA) by either recycling residual ASE or using a second C-band wavelength pump laser and on the experimental demonstration of L-band tunable erbium-doped fiber ring lasers. We observed that by reflecting ASE from pumped erbium-doped fiber (EDF) the L-band EDFA gain can be enhanced of 2-15 dB depending on amplifier designs. We also studied wavelength and power dependence of second pump laser on the gain enhanced L-band EDFA and found that an optimum wavelength for second pump laser was between 1550 and 1560 rim. Finally, a L-band tunable erbium-doped fiber laser was also constructed in which lazing oscillation was observed closed to 1624 nm by recycling residual ASE. This L-band tunable laser has a line-width of about 300 MHz, an output power of 1 mW, and a signal to source spontaneous emission ratio of 60 dB. (C) 2002 Elsevier Science B,V. All rights reserved.
引用
收藏
页码:119 / 125
页数:7
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