xia lan, qian lie jia, wang shi ji. Study and design of spatial filter in high power femtosecond laser system[J]. High Power Laser and Particle Beams, 2003, 15.
Citation:
xia lan, qian lie jia, wang shi ji. Study and design of spatial filter in high power femtosecond laser system[J]. High Power Laser and Particle Beams, 2003, 15.
xia lan, qian lie jia, wang shi ji. Study and design of spatial filter in high power femtosecond laser system[J]. High Power Laser and Particle Beams, 2003, 15.
Citation:
xia lan, qian lie jia, wang shi ji. Study and design of spatial filter in high power femtosecond laser system[J]. High Power Laser and Particle Beams, 2003, 15.
Shanghai Institute of Laser Plasma,CAEP,National Laboratory on High Power Laser Physics,P.O.Box 800 229 ,Shanghai 201800,China;
2.
Shanghai Institute of Optics and Fine Mechanics,the Chinese Academy of Sciences,National Laboratory on High Power Laser Physics,P.O.Box 800 211,Shanghai 201800,China
Owing to the PTD effect in the lenses of spatial filter, large temporal front distortion of femtosecond pulses occurs in the spatial filter. In this work, in order to design a spatial filter which is applicable to high power femtosecond laser system, PTD of achromatic doublet or separated doublet is calculated and special spatial filter is discussed in which achromatic doublet or separated doublet replace the single lens. PTD of the special spatial filter is little so temporal front distortion of femtosecond pulse in laser system is eliminated or reduced.
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