ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Pulse collapse and blue-shifted enhanced supercontinuumin photonic crystal fiber |
Liu Wen-Jun (刘文军), Pang Li-Hui (庞利辉), Lin Xiang (林翔), Gao Ren-Xi (高仁喜), Song Xiao-Wei (宋晓伟) |
Department of Optoelectronics Science, Harbin Institute of Technology at Weihai, Weihai 264209, China |
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Abstract The blue-shifted supercontinuum generation in a photonic crystal fiber pumped by high peak power femtosecond pulses with wavelength located in the anomalous dispersion region is investigated experimentally and numerically. The formation of a blue-shifted enhanced supercontinuum due to the pulse collapse is demonstrated. The process of the pulse collapse is measured by using the grating-eliminated no-nonsense observation of ultrafast incident laser light e-fields technique (GRENOUILLE). Numerical simulations in spectral and temporal domains are conducted. The data from numerical simulations are in good agreement with the experimental results. Our experimental results and numerical simulations show that the pulse collapse is the determining factor in the generation of blue-shifted supercontinuum.
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Received: 23 July 2012
Revised: 30 September 2012
Accepted manuscript online:
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PACS:
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42.65.-k
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(Nonlinear optics)
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42.65.Jx
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(Beam trapping, self-focusing and defocusing; self-phase modulation)
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42.65.Tg
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(Optical solitons; nonlinear guided waves)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 61178025), the Natural Science Foundation of Shandong Province, China (Grant Nos. ZR2009AL002 and ZR2010FQ007), and the Natural Scientific Research Innovation Foundation in Harbin Institute of Technology, China (Grant No. HIT.NSRIF. 2008087). |
Corresponding Authors:
Liu Wen-Jun
E-mail: liuwenjun86@163.com
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Cite this article:
Liu Wen-Jun (刘文军), Pang Li-Hui (庞利辉), Lin Xiang (林翔), Gao Ren-Xi (高仁喜), Song Xiao-Wei (宋晓伟) Pulse collapse and blue-shifted enhanced supercontinuumin photonic crystal fiber 2013 Chin. Phys. B 22 034204
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