Flexible high-repetition-rate ultrafast fiber laser.
Flexible high-repetition-rate ultrafast fiber laser.
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灵活的高重复率超快光纤激光器
DOI：
10.1038/srep03223
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发表时间：
2013-11-14
影响因子：
4.6
通讯作者：
Wang, Fengqiu
中科院分区：
文献类型：
--
作者：
Mao, Dong;Liu, Xueming;Sun, Zhipei;Lu, Hua;Han, Dongdong;Wang, Guoxi;Wang, Fengqiu
高重复频率脉冲在光纤通信、频率梳和光学传感等领域有着广泛的应用。在这里，我们通过使用内腔马赫-曾德尔干涉仪(MZI)作为梳状滤光器，在全光纤激光器中展示了高重复频率的超短脉冲。通过控制两臂间的光程差，激光器的重复频率可在7~1100 GHz范围内灵活调谐。通过操纵腔内偏振控制器，脉冲宽度可以从10.1~0.55 ps连续减小，光谱宽度从0.35~5.7 nm可调。数值模拟很好地证实了实验观测结果，并表明MZI引起的滤光片驱动的四波混频效应是高重复频率脉冲形成的主要机制。这种全光纤激光器是一种简单、低成本的光源，适用于需要高重复频率脉冲的各种应用。
High-repetition-rate pulses have widespread applications in the fields of fiber communications, frequency comb and optical sensing. Here, we have demonstrated high-repetition-rate ultrashort pulses in an all-fiber laser by exploiting an intracavity Mach-Zehnder interferometer (MZI) as a comb filter. The repetition rate of the laser can be tuned flexibly from about 7 to 1100 GHz by controlling the optical path difference between the two arms of the MZI. The pulse duration can be reduced continuously from about 10.1 to 0.55 ps with the spectral width tunable from about 0.35 to 5.7 nm by manipulating the intracavity polarization controller. Numerical simulations well confirm the experimental observations and show that filter-driven four-wave mixing effect, induced by the MZI, is the main mechanism that governs the formation of the high-repetition-rate pulses. This all-fiber-based laser is a simple and low-cost source for various applications where high-repetition-rate pulses are necessary.
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影响因子：
2.9
作者：
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通讯作者：
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影响因子：
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作者：
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