Delivery of nanojoule femtosecond pulses through large-core microstructured fibers
Delivery of nanojoule femtosecond pulses through large-core microstructured fibers
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DOI：
10.1364/ol.27.001513
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发表时间：
2002-09-01
期刊：
影响因子：
3.6
通讯作者：
Gaeta, AL
中科院分区：
文献类型：
--
作者：
Ouzounov, DG;Moll, KD;Gaeta, AL
我们研究飞秒脉冲通过大芯微结构光纤的传播。尽管这些光纤是高度多模的，但很容易实现基模的激发，并且即使光纤弯曲或扭曲，与高阶模的耦合也很弱。对于能量高达 3 nJ 的预啁啾输入脉冲，光纤输出处会产生短至 140 fs 的脉冲。这样的系统可能被证明对于需要传送飞秒脉冲和收集荧光的体内多光子显微镜和内窥镜检查等应用非常有用。 (C) 2002 年美国光学学会。
We investigate femtosecond-pulse propagation through large-core microstructured fibers. Although these fibers are highly multimode, excitation of the fundamental mode is readily achieved, and coupling to higher-order modes is weak even when the fiber is bent or twisted. For prechirped input pulses with energies as large as 3 nJ, pulses as short as 140 fs were produced at the output of the fiber. Such a system could prove to be extremely useful for applications such as in vivo multiphoton microscopy and endoscopy that require delivery of femtosecond pulses and collection of fluorescence. (C) 2002 Optical Society of America.