Transmittance measurements for filters of optical density between one and ten

We have developed a facility for measuring the transmittance of optical filters at a wavelength of 1064 nm, using a Nd:YAG laser, a power stabilizer, and linear photodiode detectors. A direct measurement method was used for filters with optical densities (OD's) less than or equal to 4, and a re...

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Bibliographic Details
Published inApplied optics (2004) Vol. 36; no. 34; p. 8889
Main Authors Zhang, Z M, Gentile, T R, Migdall, A L, Datla, R U
Format Journal Article
LanguageEnglish
Published United States 01.12.1997
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Summary:We have developed a facility for measuring the transmittance of optical filters at a wavelength of 1064 nm, using a Nd:YAG laser, a power stabilizer, and linear photodiode detectors. A direct measurement method was used for filters with optical densities (OD's) less than or equal to 4, and a reference substitution technique was used for filters with OD's as great as 10. The apparatus and data-acquisition system are described. Measurement results for a set of filters are presented. The expanded uncertainties for the measured OD and deduced absorption coefficient are determined through a detailed analysis of all the uncertainty components.
ISSN:1559-128X
DOI:10.1364/AO.36.008889