Double-frequency CARS measuring device and method based on bound state light soliton
A measurement device and optical soliton technology, applied in measurement devices, coupling of optical waveguides, optics, etc., can solve the problems of system complexity and system cost increase, and achieve continuous and rapid wavelength adjustment, large wavelength tuning range, and simple structure. Effect
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[0038] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments. .
[0039] Such as figure 1 Shown is a schematic diagram of a dual-frequency CARS measurement device based on bound state optical solitons of the present invention. The device mainly includes a femtosecond laser 1, an ultrashort pulse beam splitting adjustment part (composed of an electronically controlled liquid crystal wave plate 2 and a polarizing beam splitting prism 3), Stokes light pulse generation and transmission optical path (composed of a half-wave sheet 4, beam expander 5, fiber coupling mirror 6, highly nonlinear polarization-maintaining photonic crystal fiber 7, fiber collimator beam expander 8, first reflector 9, first dispersion glass 10), pump light transmission optical path (composed of a second reflector 11, an adjustable spatial light delay line 12, an adjustable attenuation sheet 13, and a second dispersio...
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