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  • 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference
  • (Optica Publishing Group, 2015),
  • paper CH_2_1

Characterization of the angular and polarization dependence of a room-temperature predictable quantum efficient detector (RT-PQED)

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Abstract

A primary standard for optical power based on induced-junction silicon photodiodes has been developed lately [1,2]. Modeling and characterization at selected wavelengths have shown that the spectral responsivity of a room-temperature predictable quantum efficient detector (RT-PQED) can be predicted with an uncertainty at the level of 100 ppm [1,3]. Implementation of the RT-PQED as a primary standard for radiometry, though, requires experimental validation by characterizing its performance with respect to the relevant characteristics over the whole spectral range of applications. This is also among the goals of the EMRP NEWSTAR project aimed at providing an improved silicon detector primary standard for radiometry having approximately the same cost and functionality as present transfer standard detectors [4]. The aim of the presented measurements was to validate the angular response and polarization dependence of the RT-PQED, which is important to know for applications, e.g. photometry, involving non-collimated unpolarized beams.

© 2015 IEEE

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