In this work we demonstrate a record optical power of single-photon flux measured on a SI-traceable trap detector. This flux was measured using a single-mode fiber, allowing for the absolute calibration of a superconducting nanowire detector. Single-photons from an InGaAs quantum dot in a micropillar cavity were determined to have an optical power of 1.06±0.03pW or 4.95±0.14 ×10^6 photons per second as measured on the calibrated trap detector. The single-photon fluorescence at this power exhibited a g(2)(τ=0) of 0.13.
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