Long-cavity passively mode-locked fiber ring laser with high-energy rectangular-shape pulses in anomalous dispersion regime
Long-cavity passively mode-locked fiber ring laser with high-energy rectangular-shape pulses in anomalous dispersion regime
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DOI：
10.1364/ol.35.003249
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发表时间：
2010-10-01
期刊：
影响因子：
3.6
通讯作者：
Zhao, Wei
中科院分区：
文献类型：
--
作者：
Li, Xiaohui;Liu, Xueming;Zhao, Wei
我们报告了反常色散状态下的长腔被动锁模光纤激光器。采用非线性偏振旋转技术来实现锁模。光纤激光器的输出脉冲具有矩形形状和相应的高斯形状光谱轮廓。在腔内500 mW的等双向泵浦功率下，获得了重复频率为278 kHz、单脉冲能量高达715 nJ的稳定锁模脉冲。实验结果表明，工作在反常态的被动锁模光纤激光器也可以实现不同于传统低能孤子脉冲的高能脉冲。 (C) 2010 美国光学学会
We report on a long-cavity passively mode-locked fiber laser in the anomalous dispersion regime. The nonlinear polarization rotation technique is employed to achieve mode locking. The output pulse from the fiber laser has a rectangular shape and a corresponding Gaussian-shape spectral profile. Stable mode-locked pulses at a repetition rate of 278 kHz with single pulse energy as high as 715 nJ are obtained under equal bidirectional pumping power of 500 mW in cavity. The experimental results demonstrate that the passively mode-locked fiber laser operating in the anomalous regime can also realize a high-energy pulse, which is different from the conventional low-energy soliton pulse. (C) 2010 Optical Society of America