| The method of generating intense monocycle laser pulses was given based on the overview of femtosecond pulses shapings,femtosescond pulses measurement and femtosecond pulses development. The main contents are summarized as follows:1 Broading amplifier spetrum with hollow fiber filled with noble gas or filamentation in noble gas, and high energy ultrobroadband optical pulses is achieved.2 The principle of LC-SLM pulses shaping is described; The efforts of dispersion compensation is simulated; The ultrobroadband dispersion compensation experiment is designed; 4f pulses shaping system is constructed; The relation of voltage and phase is Calibrated by experiment; Phase control software is compiled; and accuracy control of phase is realized.3 The simulation of FRAC and FROG is compiled based on the principle of measuring principle.. Exact phase retrieval arithmetic is realized with the combination of wavelet transform and Fourier transform, corresponding phase retrieval software online is compiled; Exact measurement si realiazed; Dispersion is compensated by the combination with phase controlling LC-SLM and phase measuring of SPIDER.4 Chirped pulses amplifier system with LC-SLM is designed and constructed. Parameters in stretcher and compression systems is designed by resolution; Dispersion compensation effort with LC-SLM is simulated; Amplitude shaping of laser is completed.In addition, pulses shaping algorithms of LC-SLM is studied, and corresponding software is programmed; phase shaping filter function is calculated by iterative fourier algorithm; Adaptive feedback simulation result by simulative anneal,genetics algorithm is given. Experiment project of PCF spectrum broading with LC-SLM adaptive feedback is designed.
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