High-accuracy optical attenuator continuously variable in the range of 1:20
- 1 March 1985
- journal article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 56 (3) , 478-479
- https://doi.org/10.1063/1.1138272
Abstract
A continuously variable optical attenuator is described that uses optical fiber light guides and high-accuracy dial micrometers mounted on mechanical stages. The attenuation factors thereby obtained have proved reproducible to ∼0.1% over a dynamic range of 1:20. It should, therefore, be particularly useful in testing the linearity of the response of various photodetectors.Keywords
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