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- W3148705567 abstract "The theoretical model of spatial noise passing through a spatial filter is established in high power laser system under the small signal approximation. The transmission characteristic for a noise signal passing through spatial filters with different magnifications is analyzed by numerical simulation, according to the actual structure of the high power laser system. The results show that the spatial modulation period of low-frequency noise getting through the pinhole will be proportional to the magnification of the spatial filter. When the magnification is less than 1, the safe low-frequency noise will be extruded into the high-frequency region, which is the fast increasing part, and finally develops into the most dangerous part which can damage the optical devices. The conclusion of this research improves the relay imaging theory of a spatial filter and provides an important theoretical basis for a general design of high power laser systems." @default.
- W3148705567 created "2021-04-13" @default.
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- W3148705567 date "2011-01-01" @default.
- W3148705567 modified "2023-09-23" @default.
- W3148705567 title "Evolution of low-frequency noise passing through a spatial filter in a high power laser system" @default.
- W3148705567 hasPublicationYear "2011" @default.
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