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Generation of wavelength-tunable soliton molecules in a 2-mu m ultrafast all-fiber laser based on nonlinear polarization evolution

机译:基于非线性偏振演化的2微米超快全光纤激光器中波长可调孤子分子的产生

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摘要

We report on the experimental observation of stable single solitons and soliton molecules in a 2-mu m thulium-holmium-doped fiber laser mode-locked through the nonlinear polarization evolution technique within an anomalously dispersive cavity. Single 0.65 nJ solitons feature a 7.3 nm spectral FWHM and 540 fs temporal duration, yielding a time bandwidth product close to the Fourier-transform limitation. Under the same pumping power of 740 mW, stable out-of-phase twin-soliton molecules, featuring a temporal separation of 2.5 ps between the two similar to 700 fs pulses, are generated in a deterministic way, while the central wavelength of the soliton molecules can be tuned from 1920 to 1940 nm. Finally, we present strong experimental evidence of vibrating soliton molecules. (C) 2016 Optical Society of America
机译:我们报告了在异常色散腔内通过非线性偏振演化技术锁模的2微米th-m掺杂光纤激光器中稳定单孤子和孤子分子的实验观察。单个0.65 nJ孤子具有7.3 nm的光谱FWHM和540 fs的时间持续时间,产生的时间带宽积接近傅里叶变换极限。在740 mW的相同泵浦功率下,以确定的方式产生了稳定的异相双孤子分子,其确定性的方式产生了两个类似于700 fs脉冲的2.5 ps的时间间隔,而孤子的中心波长分子可在1920至1940 nm范围内调节。最后,我们提出了振动孤子分子的有力实验证据。 (C)2016美国眼镜学会

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