Abstract
We report realization of scales for optical power of lasers and spectral responsivity of laser power detectors based on a predictable quantum efficient detector (PQED) over the spectral range of 400 nm–800 nm. The PQED is characterized and used to measure optical power of a laser that is further used in calibration of the responsivities of a working standard trap detector at four distinct laser lines, with an expanded uncertainty of about 0.05%. We present a comparison of responsivities calibrated against the PQED at Aalto and the cryogenic radiometer at RISE, Sweden. The measurement results support the concept that the PQED can be used as a primary standard of optical power.
Highlights
The predictable quantum efficient detector (PQED) provides traceability of optical power to the SI system of units [1,2]
We report realization of scales for optical power of lasers and spectral responsivity of laser power detectors based on a predictable quantum efficient detector (PQED) over the spectral range of 400 nm – 800 nm
Aalto has taken into use a new optical power scale based on a PQED
Summary
- Predictable quantum efficient detector based on n-type silicon photodiodes Timo Dönsberg, Farshid Manoocheri, Meelis Sildoja et al. - Enhanced near-infrared responsivity of silicon photodetector by the impurity photovoltaic effect Ji-Ren Yuan, , Hai-Bin Huang et al. Photodiodes and predicted responsivity Meelis Sildoja, Farshid Manoocheri, Mikko Merimaa et al. Photodiodes and predicted responsivity Meelis Sildoja, Farshid Manoocheri, Mikko Merimaa et al This content was downloaded from IP address 130.233.216.219 on 07/02/2022 at 09:05. Optical power scale realization using the predictable quantum efficient detector Kinza Maham, Petri Kärhä, Farshid Manoocheri, and Erkki Ikonen
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