Comparison of Optical-Power Meters Between the NIST and the PTB
Igor Vayshenker, Holger Haars, John H. Lehman, David J. Livigni
We describe the results of a comparison of optical-power meters undertaken by the National Institute of Standards and Technology (NIST, USA) and the Physikalisch-Technische Bundesanstalt (PTB, Germany) at nominal wavelengths of 1300 nm and 1550 nm. Both laboratories used thermal detectors as reference standards, which were compared using a germanium trap detector as a transfer standard. Measurement results showed differences of less than 1 part in 103, well within the combined uncertainty for both laboratories.
calibration, cryogenic radiometer, international comparison, optical power meter, optical power uncertainty
, Haars, H.
, Lehman, J.
and Livigni, D.
Comparison of Optical-Power Meters Between the NIST and the PTB, Metrologia, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=20997
(Accessed May 29, 2023)