Development of Pulse synchronized continuous scanning high resolution Fourier transform spectrometer

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Pulse synchronized continuous scanning high resolution Fourier transform spectrometer developed in this research consits of continuous scanning Fourier transform and pulse generator which generates external trigger pulses for pulsed laser. Typical parameters for spectrometer areInterferometer Michelson typeMeaurement region visible,(UV, near IR)Maximum resolution 0.02 cm^<-1>Fixed/Moving mirrors corner retro-reflectorBeam splitter plate half mirror and compansate plate with AR coatingDriving mechanism for mirror Optical X-axis state and DC motorHe-Ne laser single mode, and stabilized oscilating wavelengthMaximum scan verocity 3.6 mm/sDetector PhotomultiplierHe-Ne laser detector Si diodeA/D convertor 20MHz 12Bit 4CHComputer IBM compatible ×2OS LinuxAn absorption spectrum of I_2 was measured by the spectrometer with FWHM of 0.06 cm^<-1>. Also the emission spectrum of multi-mode diode laser was measured and maximum resolution of 0.02 cm^<-1> was confirmed. Pulse generator for pulsed laser was made and output pulses which is required for the measurement of pulsed light source with 10 Hz repetition rate were generated.