Generation of intense 100 fs solitons tunable from 2 to 4.3 μm in fluoride fiber
Generation of intense 100 fs solitons tunable from 2 to 4.3 μm in fluoride fiber
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DOI：
10.1364/optica.3.000948
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发表时间：
2016-09-20
期刊：
影响因子：
10.4
通讯作者：
Wise, Frank W.
中科院分区：
文献类型：
--
作者：
Tang, Yuxing;Wright, Logan G.;Wise, Frank W.
人们对中波红外线（3-5 μ m）的相干辐射源有很大的兴趣，基于光纤的仪器可以提供重大的实际优势。在软玻璃纤维中产生超连续谱可以很容易地覆盖这个范围，而且范围要宽得多，但是功率谱密度很低。对于需要强超短脉冲的应用，光纤光源非常有限。在这封信中，我们报告了一个基于光纤的系统，产生100 fs的脉冲与5 nJ的能量，连续波长可调超过2-4.3 μ m，通过孤子自频移（SSFS）在氟化物光纤。的脉冲能量是2个数量级高于以前实现的SSFS，约3 μ m，和波长的范围扩展了1000 nm。在整个调谐范围内实现了20至75 kW的峰值功率范围。数值模拟与实验结果非常一致，并表明在5.6 μ m范围内有可能产生几个周期的孤立子。光纤集成源的飞秒脉冲可调跨越这一地区应该是有价值的中红外应用。(C)2016美国光学学会
There is great interest in sources of coherent radiation in the mid-wave infrared (3-5 mu m), and instruments based on fiber can offer major practical advantages. This range, and much broader, can be covered easily by supercontinuum generation in soft glass fibers, but with low power spectral density. For applications that require intense ultrashort pulses, fiber sources are quite limited. In this Letter, we report a fiber-based system that generates 100 fs pulses with 5 nJ energy, continuously wavelength-tunable over 2-4.3 mu m through the soliton self-frequency shift (SSFS) in fluoride fibers. The pulse energies are 2 orders of magnitude higher than those previously achieved by SSFS, around 3 mu m, and the range of wavelengths is extended by 1000 nm. Peak power ranges from 20 to 75 kW are achieved across the tuning range. Numerical simulations are in good agreement with the experimental results, and indicate the potential for few-cycle soliton generation out to 5.6 mu m. Fiber-integrated sources of femto-second pulses tunable across this region should be valuable for mid-infrared applications. (C) 2016 Optical Society of America