Transmittance measurements of laser components using a combination of cavity ring-down and photometry

H. Cui; Y. Han; C. Gao; Y. Wang; B. Li

doi:10.1117/12.2197779

23 November 2015 Transmittance measurements of laser components using a combination of cavity ring-down and photometry

H. Cui, Y. Han, C. Gao, Y. Wang, B. Li

Proceedings Volume 9632, Laser-Induced Damage in Optical Materials: 2015; 96321P (2015) https://doi.org/10.1117/12.2197779
Event: SPIE Laser Damage, 2015, Boulder, Colorado, United States

Abstract

A combined cavity ring-down (CRD) and photometry technique is employed to measure the transmittance of optical laser components in a range extending from below 0.01% to over 99.99%. In this combined technique, the conventional photometric configuration is used to measure, by ratioing the transmitted light power to the input power, the transmittance ranging from below 0.01% to over 99% with a typical relative uncertainty below 0.3%, and the CRD configuration is used to measure the transmittance higher than 99% with an uncertainty below 0.01%. Eight test samples with transmittance in the range of nearly 99.99% to approximately 0.013% are experimentally measured. Uncertainties of approximately 0.0001% for the transmittance of 99.9877% and of 0.003% for the transmittance of 0.013% are achieved with respectively the CRD and photometric schemes of a simple experimental apparatus. The experimental results showed that the combined technique is capable of measuring the transmittance of any practically fabricated optical laser components.

Citation Download Citation

H. Cui, Y. Han, C. Gao, Y. Wang, and B. Li "Transmittance measurements of laser components using a combination of cavity ring-down and photometry", Proc. SPIE 9632, Laser-Induced Damage in Optical Materials: 2015, 96321P (23 November 2015); https://doi.org/10.1117/12.2197779

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