Alignment-free characterization of polarizing beamsplitters

Felipe Calliari, Pedro Tovar, Christiano Nascimento, Breno Perlingeiro, Gustavo Amaral, Guilherme Temporão

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Abstract

Traditional methods for measurement of polarizing beamsplitter (PBS) parameters, especially the extinction ratio, require highly polarized light sources, alignment procedures, and/or experimental parameters that change over time, such as polarization rotations. In this work, a new method is presented that employs unpolarized light and a Faraday mirror. It is shown that precise extinction ratio and insertion loss values can be achieved in three single-sweep measurements without any alignment requirements or time-varying signals of any kind.

Original languageEnglish
Pages (from-to)4395-4399
JournalApplied Optics
Volume58
Issue number16
DOIs
Publication statusPublished - 2019

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