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1 August 2004 Ultrafast temporal pattern generation and recognition
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Ultrafast temporal pattern generation and recognition with femtosecond laser technology is presented, analyzed, and experimentally implemented. Ultrafast temporal pattern generation and recognition are realized by taking advantage of two well-known techniques: the space-time conversion technique and the ultrafast pulse measurement technique. Here the temporal pattern for the designed multiple pulses, optimized with a preassumed Gaussian spectral distribution of an ultrashort pulse, is described. With the simulation of a Gaussian spectral distribution, we realize that the uniformity of the generated multiple ultrafast temporal pulses is relevant to the repeated number of modulation periods in the mask in the spectral plane. Moreover, the change of Gaussian spectral phases with the wavelengths in the modulated phase plate is considered. Experiments of ultrafast temporal pattern recognition by the frequency-resolved optical gating (FROG) characterization technique are also given.
©(2004) Society of Photo-Optical Instrumentation Engineers (SPIE)
Hua Zou, Enwen Dai, Changhe Zhou, and Yanyan Zhang "Ultrafast temporal pattern generation and recognition," Optical Engineering 43(8), (1 August 2004).
Published: 1 August 2004

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