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Chirp estimation of PZT for integrating-bucket method (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
作者:  Zhang J.;  Liu W.;  Zhang J.;  Zhang J.
收藏  |  浏览/下载：26/0  |  提交时间：2013/03/25
The nonlinear response of the PZT for the integrating bucket method is studied by our proposed method: discrete chirp Fourier transform (DCFT) and maximum likelihood estimation (MLE) techniques for the integrating bucket method. Based on the signal processing theory  the intensity obtained from CCD is processed by the DCFT and thus nonlinear response and chirp coefficient of the PZT can be coarsely estimated. This is followed by the MLE method  in which an iterative optimization process is complemented for accurately estimating the nonlinear response and chirp coefficient of the PZT. One key advantage of the proposed method is that not only the nonlinear response and chirp coefficient of the PZT can be acquired  but also initial phase acquired. Our method is tested by simulating conditions under which a certain magnitude of nonlinearity is assumed. Nonlinear response attained by the DCFT is compared to that attained by the MLE  and a difference between the actual nonlinear response of the PZT and our accurate estimation by the proposed method is revealed. Several factors that will have influence on the nonlinear response of the PZT are discussed. 2010 Copyright SPIE - The International Society for Optical Engineering.  
初始啁啾对光纤中传播的飞秒光孤子的影响 期刊论文  OAI收割
量子电子学报, 2005, 卷号: 22, 期号: 3, 页码: 453, 456
杜建新; 楼祺洪; 陈雷; 孔令峰; 周军
收藏  |  浏览/下载：1172/219  |  提交时间：2009/09/18