High-energy fly secondary laser pulse outside cavity compressor
A femtosecond laser and compression device technology, applied in lasers, laser components, optics, etc., can solve the problems of uneven beam cross-sectional intensity distribution, filter damage, high energy, etc., to improve the beam spatial mode, energy The effect of small loss and wide spectrum
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[0020] The present invention will be further described below in conjunction with the embodiments and drawings, but the protection scope of the present invention should not be limited by this. See first figure 2 , figure 2 It is a block diagram of a high-energy femtosecond laser pulse external cavity compression device of the present invention. It can be seen from the figure that the high-energy femtosecond laser pulse external cavity compression device of the present invention includes a laser amplification system 1. The output optical path of the laser amplification system 1 is followed by a thin lens 2, a pulse compression unit, and a silver-plated concave mirror 5. The silver-plated plane mirror 6, the dispersion compensation element 7, the first broadband beam splitter 8 and the second broadband beam splitter 10, the reflected light direction of the first broadband beam splitter 8 is the spectrometer 9, and the second The reflected light direction of the broadband beam split...
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