Absolute spectral responsivity of silicon trap detector based on absolute cryogenic radiometer

2015 ◽  
Author(s):  
Xueshun Shi ◽  
Changming Liu ◽  
Yulong Liu ◽  
Lechen Yang ◽  
Kun Zhao ◽  
...  
Keyword(s):  
Spectral Responsivity ◽  
Cryogenic Radiometer ◽  
Trap Detector

scholarly journals Optical power scale realization using the predictable quantum efficient detector

2022 ◽  
Vol 2149 (1) ◽  
pp. 012006
Author(s):  
Kinza Maham ◽  
Petri Kärhä ◽  
Farshid Manoocheri ◽  
Erkki Ikonen
Keyword(s):  
Laser Power ◽  
Primary Standard ◽  
Optical Power ◽  
Spectral Responsivity ◽  
Expanded Uncertainty ◽  
Working Standard ◽  
Cryogenic Radiometer ◽  
Trap Detector ◽  
Measurement Results ◽  
Power Scale

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.

Supercontinuum laser-based monochromatic radiant source for detector spectral responsivity characterization in the range 0.9–1.6 μm using absolute cryogenic radiometer

2020 ◽  
pp. 28-33
Author(s):  
A. Yu. Dunaev ◽  
A. S. Baturin ◽  
V. N. Krutikov ◽  
S. P. Morozova
Keyword(s):  
Power Distribution ◽  
Spectral Power ◽  
Feedback System ◽  
Operating Mode ◽  
Spectral Responsivity ◽  
Spectral Power Distribution ◽  
Cryogenic Radiometer ◽  
Supercontinuum Laser ◽  
Radiant Power ◽  
Double Monochromator

An improved monochromatic radiant source with spectral bandwidth of 4 nm based on supercontinuum laser and a double monochromator was included in absolute cryogenic radiometer-based facility to improve the accuracy of spectral responsivity measurement in the range 0.9–1.6 μm. The developed feedback system ensures stabilization of monochromatic radiant power with standard deviation up to 0.025 %. Radiant power that proceeds detector under test or absolute cryogenic radiometer varies from 0.1 to 1.5 mW in dependence of wavelength. The spectral power distribution of its monochromatic source for various operating mode is presented.

Measurement-based extrapolation of spectral responsivity by using a low-NEP pyroelectric detector

2021 ◽  
Author(s):  
Seongchong Park ◽  
Dong-Hoon Lee ◽  
Kee Suk Hong
Keyword(s):  
Spectral Response ◽  
Previous Method ◽  
Pyroelectric Detector ◽  
Spectral Responsivity ◽  
Current Output ◽  
Experimental Procedure ◽  
Trap Detector ◽  
Minimum Uncertainty ◽  
Lock In ◽  
Dc Current

Abstract In case the primary realization of the spectral responsivity scale is not conducted at all target wavelengths but at only a small part of them, one needs to extrapolate values at the specific wavelengths to an extended range. In this work, we present a fully experimental procedure to extrapolate a single value of spectral responsivity at 633 nm into the whole working wavelength range (250 – 1100) nm of Si photodiodes. It is based on spectral responsivity comparison between a Si trap detector and a low-NEP pyroelectric detector of nearly flat spectral response. For this purpose, we developed a setup specialized to compare a Si-trap detector of dc-current output with a pyroelectric detector of ac-voltage output by using a modulated probing light source and a monitoring technique. To keep the probing light chopped even for the dc-photocurrent readout, we adopted a low chopping frequency of 4 Hz and a triggered readout for the Si-trap detector, which leads to a speedy comparison between the Si-trap detector and the pyroelectric detector. For the reference pyroelectric detector, we characterized the spectral absorptivity of the black-coating and the nonlinearity of the lock-in amplifier readout. Compiling all the required information, the spectral responsivity of the Si trap detector could be measured with the minimum uncertainty of 0.3 % (k = 2), which was validated by comparing with that of our previous method based on a numerical extrapolation.

New UV spectral responsivity scale of the PTB based on a cryogenic radiometer and an argon plasma arc radiation source

Metrologia ◽  
2006 ◽  
Vol 43 (2) ◽  
pp. S72-S77 ◽  
Author(s):  
P Meindl ◽  
A E Klinkmüller ◽  
L Werner ◽  
U Johannsen ◽  
K Grützmacher
Keyword(s):  
Radiation Source ◽  
Argon Plasma ◽  
Plasma Arc ◽  
Spectral Responsivity ◽  
Cryogenic Radiometer

Mid-infrared spectral responsivity scale based on an absolute cryogenic radiometer and a tunable quantum cascade laser

Metrologia ◽  
2021 ◽  
Vol 58 (2) ◽  
pp. 025003
Author(s):  
Wende Liu ◽  
Nan Xu ◽  
Yingwei He ◽  
Haiyong Gan ◽  
Guojin Feng ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Spectral Responsivity ◽  
Mid Infrared ◽  
Quantum Cascade ◽  
Cryogenic Radiometer ◽  
Infrared Spectral

Realization of the spectral responsivity scale based on an absolute cryogenic radiometer

2015 ◽  
Vol 67 (12) ◽  
pp. 2045-2058 ◽  
Author(s):  
Kee-Suk Hong ◽  
Seongchong Park ◽  
Seung-Kwan Kim ◽  
Seung-Nam Park ◽  
Dong-Hoon Lee
Keyword(s):  
Spectral Responsivity ◽  
Cryogenic Radiometer
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