Due to the detector's response to different wavelength laser is different, the correction coefficients are also not the same, and however, it is not realistic to calibrate all the wavelengths to obtain the corresponding correction coefficient. It is studied on a new method for obtaining these data under different light sources, based on one wave length correction coefficient and the spectral response curve of the detector. It is solved the calibration problem of multi wavelength laser power meter. The experiments are made and the results show that the correction coefficient obtained by this method agrees well with the one obtained by the traditional method.
The flashing light source is a kind of pulse light, has short duration. For the measurement of the light source, the response ability of the instrument to the light source parameters should be considered. Through experimental analysis of flashing light intensity and pulse width with the two instruments, the effect of stray light on the measurement of light intensity is studied. On the other hand, the effect of the response time of the detector on the measurement results is discussed. It has an important significance to accurately measure flashing light.
Analysis on the impurities of non-dispersive atomic fluorescence exciting light source is given. A method is proposed to detect this kind of light source impurity by using spectral analysis, and a set of light source detection standard device was accomplished. Corresponding algorithm and application software were developed. The detection wavelength range of the device is 190～350 nm, the maximum allowable error is ±0.3 nm. The device achieved fast detection of the excitation light source impurity and could be verified by the experimental results.