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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.
Original language | English |
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Article number | 012006 |
Number of pages | 5 |
Journal | Journal of Physics: Conference Series |
Volume | 2149 |
Issue number | 1 |
DOIs | |
Publication status | Published - 6 Jan 2022 |
MoE publication type | A4 Conference publication |
Event | International Conference on New Developments and Applications in Optical Radiometry - Internet, Gaithersburg, United States Duration: 21 Jun 2021 → 24 Jun 2021 https://www.nist.gov/news-events/events/2021/06/14th-international-conference-new-developments-and-applications-optical |
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Dive into the research topics of 'Optical power scale realization using the predictable quantum efficient detector'. Together they form a unique fingerprint.Projects
- 1 Finished
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PREIN: Photonics Research and Innovation
Mäkelä, K. (Principal investigator)
01/01/2019 → 31/12/2022
Project: Academy of Finland: Other research funding