Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

CALIBRATION OF SPECTRORADIOMETERS USING TUNABLE LASERS

Published

Author(s)

Yuqin Zong, Ping-Shine Shaw, Joseph Rice, C Cameron Miller

Abstract

To shorten the long calibration chain when using the conventional source-based approach and therefore to reduce spectroradiometer's calibration uncertainty, we developed a detector-based approach to calibrate spectroradiometers directly against a transfer trap detector using a tunable laser. Two different detector-based methods are used for the calibration and their calibration results are in very good agreement with each other. The calibration result is also compared with that obtained using a working standard FEL lamp and the agreement is within the expanded uncertainties (k=2) of the working standard FEL lamp. This detector-based approach enables new, independent realizations of spectral irradiance or radiance scales on spectroradiometers. Such spectroradiometers can be used as instrument-based primary or transfer standards to disseminate spectral irradiance or radiance scale with a smaller uncertainty.
Proceedings Title
Proceeding of the 29th Quadrennial Session of the CIE
Conference Dates
June 14-22, 2019
Conference Location
Washington, DC
Conference Title
The 29th Quadrennial Session of the CIE

Keywords

Detector-based Calibration, New Method, Spectroradiometer, Tunable Laser

Citation

Zong, Y. , Shaw, P. , Rice, J. and , C. (2021), CALIBRATION OF SPECTRORADIOMETERS USING TUNABLE LASERS, Proceeding of the 29th Quadrennial Session of the CIE, Washington, DC, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=928010 (Accessed September 20, 2021)
Created April 22, 2021