Stable single-mode compound-ring erbium-doped fiber laser
Stable single-mode compound-ring erbium-doped fiber laser
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DOI：
10.1109/50.476143
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发表时间：
1996
影响因子：
4.7
通讯作者：
Jianluo Zhang;C. Yue;G. Schinn;W. Clements;J. Lit
中科院分区：
文献类型：
--
作者：
Jianluo Zhang;C. Yue;G. Schinn;W. Clements;J. Lit
本文报道了一种鲁棒、可调谐的单纵模复合环Er/sup 3+/掺杂光纤激光器的制备。该激光器的基本结构是全光纤复合环谐振器，其中双耦合器光纤环插入到主腔中。当与限模腔内可调带通滤波器串联结合时，复合环谐振器可确保单纵模激光振荡。该激光器可以在其1525至1570纳米波长调谐范围内提供高达20兆瓦的输出功率。测量到的激光输出的短期线宽小于5khz。利用复合环谐振器固有的滤波特性，实现了长时间的激光频率主动稳定。还详细讨论了相关频率调制的减小。
In this paper we report the fabrication of a robust, tunable single-longitudinal-mode compound-ring Er/sup 3+/-doped fiber laser. The laser is fundamentally structured on an all-fiber compound-ring resonator in which a dual-coupler fiber ring is inserted into the main cavity. When combined in tandem with a mode-restricting intracavity tunable bandpass filter, the compound-ring resonator ensures single-longitudinal-mode laser oscillation. The laser can provide up to 20 mW output power over much of its 1525 to 1570 nm wavelength tuning range. The short-term linewidth of the laser output measured is less than 5 kHz. The laser frequency is actively stabilized for a long time by exploiting the inherent filter nature of the compound-ring resonator. The reduction of an associated frequency modulation is also discussed in detail.