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| Calibration and value transfer of absolute spectral responsivity between 400nm and 1700nm |
| SHI Xue-shun1,XU Nan2,LIU Chang-ming1,GAN Hai-yong2,LI Jian-jun3,LIN Yan-dong2,CHEN Kun-feng1 |
1. The 41st Research Institute of CETC, Qingdao, Shandong 266555, China
2. National Institute of Metrology, Beijing 100029, China
3. Key Laboratory of Optical Calibration and Characterization of CAS, Hefei, Anhui 230031, China |
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Abstract The principle and methods of optical radiation measurement was illustrated. The absolute spectral responsivity of Si trap detectors and InGaAs trap detectors were calibrated with the absolute cryogenic radiometer at eleven wavelengths between 400 nm and 1700 nm, which are 476.1, 488, 514.7, 521, 568, 632.8, 647.1, 785, 852, 980, 1064 and 1550 nm, respectively, with measurement uncertainties better than 0.05%. The absolute spectral responsivity curves of Si trap detectors were calculated by quantum efficiency model. The absolute responsivity of three wavelengths was applied to get absolute spectral responsivity from the relative spectral responsivity of InGaAs detector. Results show that the two types of trap detectors can be used to calibrate and transfer optical radiation value in the visible and near infrared spectral range.
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Received: 25 December 2015
Published: 27 September 2017
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Corresponding Authors:
Xue-Shun SHI
E-mail: xshshi@163.com
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2017, Vol. 38 
