Instrument Response Function Monitor on an Optical Measurement Device

Abstract

An illustrative optical measurement system may include a module comprising a light source configured to emit light directed at a target, a plurality of detectors configured to detect target photon arrival times of target photons of the light after the light is scattered by the target, a reference detector configured to detect reference photon arrival times of reference photons of the light after the light is reflected within the module, and a waveguide configured to direct the light reflected within the module through a plurality of channels of the waveguide to the reference detector. The system may further include a controller configured to determine, based on an output from the reference detector, an instrument response function (IRF) of the module.

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