Time resolution can view the whole process of continuous pulse width and fluorescence attenuation, which is equivalent to an optical oscilloscope, that is, it can display the whole phase change process of the signal. Through this observation, we can know whether the pulse is uniform in time variation and whether the interval between pulses is appropriate, that is, the application of pulse shaping; In fluorescence, it is very useful to measure the decay period of fluorescence and check whether the decay process of fluorescence is normal, which is called time-resolved spectral analysis.

At present, the only tool that can diagnose continuous-time spectrum is called fringe camera, and its detailed principle, structure and application are shown in:

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