I have a ultrafast laser sync at 79 MHz, with a photon source. Two photon detectors (channel A, channel B) are used to detect the photon source, in addition, there is a sync channel. The figure plots what happens in a single period, in one second there are 79 million of these periods. The detected photons can arrive in this 13 nanosecond windows (1/79MHz) in either Channel A or Channel B. Is it possible to check the photon event A and B in the same sync period in real time and select them as a coincidence event in real time? The idea is only keeping the photons A,B belong to the same period.
This is an important question.
A approach to detect photons is shown in
https://www.researchgate.net/publication/49746942_Innovative_Measurement_Techniques_in_Surface_Science/figures?lo=1
A good discussion concerning the photon measurement issue is given in
https://www.researchgate.net/post/I_need_to_detect_a_flux_of_photons_in_the_400-800_nm_range_of_02_mLux-can_anyone_help
More to the point, for photon emission analysis, see
https://www.researchgate.net/publication/295813576_Photonic_Side_Channel_Analysis_of_Arbiter_PUFs
Article Innovative Measurement Techniques in Surface Science
Article Photonic Side Channel Analysis of Arbiter PUFs
Thanks for your answer. I am currently trying to achieve this by means of TCSPC electronics, it's called Picoquant TimeHarp 260, I am not very sure how one can read the events before it gets written to the hard disk.