Ultrafine optical-frequency tunable Brillouin fiber laser based on fiber strain.
Ultrafine optical-frequency tunable Brillouin fiber laser based on fiber strain.
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DOI：
10.1364/ol.36.003837
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发表时间：
2011-10
期刊：
影响因子：
3.6
通讯作者：
Z. Wu;L. Zhan;Q. Shen;Jinmei Liu;Xiao Hu;Pingping Xiao
中科院分区：
文献类型：
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作者：
Z. Wu;L. Zhan;Q. Shen;Jinmei Liu;Xiao Hu;Pingping Xiao
提出了一种超精细可调谐单频布里渊光纤激光器，其中光纤布里渊增益同时作为高精度的可调谐滤光片。通过控制光纤上的应变，可以精确地改变斯托克斯频移，从而实现激光频率的调谐。在频率牵引效应的辅助下，该方法可以在~30%的自由频谱范围内提供连续的超微调能力，而不会跳模，并且可以覆盖271 MHz。实验表明，该激光器实现了60 kHz的调谐步长。
We present an ultrafine tunable single-frequency Brillouin fiber laser in which the fiber Brillouin gain also acts as a high-precision tunable filter. Controlling the strain on the fiber, the Stokes frequency shift may be precisely changed, and thus the lasing frequency can be tuned. Assisted by the frequency pulling effect, this method provides continuous ultrafine tuning ability for ~30% of the free spectral range without mode hopping, and can cover 271 MHz. The experiments showed that the laser achieves tuning step of 60 kHz.