Title频率分辨光学开关法行迹相位还原的时频分析
Other TitlesTime-frequency analysis for phase retrieval from traces of frequency resolved optical gating
Authors邓玉强
王清月
张志刚
Affiliation中国计量科学研究院光学与激光计量科学研究所
天津大学精密仪器与光电子工程学院
天津大学精密仪器与光电子工程学院 北京100013
天津300072
北京大学信息科学与技术学院
北京100871
Keywords超短脉冲
相位重建
ultrafast pulses
phase retrieval
Issue Date2006
Publisher物理学报
Citation物理学报.2006,(12),6454-6458.
Abstract将小波变换分析光谱相位相干原理应用于频率分辨光学开关(FROG)行迹图的时间-频率分析,不需要传统的迭代算法,从对FROG行迹的脊的分析中,直接得到超短脉冲的相位.对于FROG行迹的脊变化平缓的脉冲得到了精确的相位.
Based on the theory of wavelet- transform analysis for spectral phase retrieval from spectral shearing interferogram, we extract phases from the traces of frequency resolved optical gating ( FROG) with time-frequency analysis method. The method enables the phases to be extracted from the ridges of FROG traces directly, and requires no iterative algorithm. For the flap ridges, accurate phases can be extructed. However, for the frequency- varying ridges, the results have great error at the tails of the pulses, and the reasons for error generation are analyzed.
URIhttp://hdl.handle.net/20.500.11897/214821
ISSN1000-3290
Appears in Collections:未确定






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