Optical power scale realization using the predictable quantum efficient detector. Issue 1 (January 2022)

• Record Type: Journal Article
• Authors: Maham, Kinza; Kärhä, Petri; Manoocheri, Farshid; Ikonen, Erkki
• Is Part Of: Journal of physics. Volume 2149:Issue 1(2022)
• Publication Date: 2022-01
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/2149/1/012006
• Languages: English
• ISSNs: 1742-6588

Abstract

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.