Linear and nonlinear operationof a time-to-space processor


D. M. Marom, D. Panasenko, P. - C. Sun, and Y. Fainman, “Linear and nonlinear operationof a time-to-space processor,” Journal Of Optical Society of America, vol. 18, no. 2, 2001.


aging of ultrafast waveforms are investigated. We assess the effects of various system parameters on the processor’s important attributes: time window of operation and signal conversion efficiency. Both linear and nonlinear operation regimes are considered, with use of a Gaussian pulse profile and a Gaussian spatial mode model. This model enables us to define a resolution measure for the processor, which is found to be an important characteristic. When the processor is operated in the linear interaction regime, we find that the conversion efficiency of a temporal signal to a spatial image is inversely proportional to the resolution measure. In the nonlinear interaction regime, nonuniform signal conversion due to fundamental wave depletion gives rise to a phenomenon that can be used to enhanced the imaging operation. We experimentally verify this nonlinear operation. © 2001 Optical Society of America

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