Abstract
We performed a test on linearity of optical power
measurement with Predictable Quantum Efficient
Detector (PQED) at liquid nitrogen temperature
(77 K). Low optical power levels from 3.3 pW
down to 400 fW at 514 nm and 785 nm
wavelengths were used. Detector’s responsivity is
linear well within the relative measurement
uncertainties between 0.5% and 2% (k=2). The
lowest power corresponds to a photon flux of
1 000 000 photons per second, which allows
calibration of single-photon detectors directly
against a primary standard of optical power.
measurement with Predictable Quantum Efficient
Detector (PQED) at liquid nitrogen temperature
(77 K). Low optical power levels from 3.3 pW
down to 400 fW at 514 nm and 785 nm
wavelengths were used. Detector’s responsivity is
linear well within the relative measurement
uncertainties between 0.5% and 2% (k=2). The
lowest power corresponds to a photon flux of
1 000 000 photons per second, which allows
calibration of single-photon detectors directly
against a primary standard of optical power.
| Original language | English |
|---|---|
| Publication status | Submitted - 15 Mar 2023 |
| MoE publication type | Not Eligible |