Can the detectors be used without a chopper if used to measure the radiation of a pulsed laser beam?

The detectors do not require a chopper. A chopper is often used to modulate the source, allowing band limited amplification of the signal and thereby increasing the signal/noise ratio. If the source is already modulated (a pulsed laser beam) then there is no need to use a chopper. Care must be taken to insure that the laser power on the detector film isn’t high enough to damage the film. (Furthermore, for this application to work, the pulse must be within the response time of the detector.).

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