Open AccessTomographic polarization analyzer by polarization-mode-frequency mapping
Author(s) -
Hailong Zhou,
Mian Liu,
Jianji Dong,
Chi Zhang
Publication year - 2017
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.014023
Subject(s) - optics , polarization (electrochemistry) , physics , orthogonal polarization spectral imaging , spectrum analyzer , spatial frequency , polarizer , photodetector , birefringence , laser , chemistry
A tomographic polarization analyzer is presented by polarization-mode-frequency mapping. Two orthogonal circularly polarized components of the unknown polarization state of light are converted to two orbital angular momentum (OAM) modes by a q-plate, and then the OAM modes are mapped to two frequencies by using time-varying spatial modulation. The polarization state of light can be retrieved by tomographic reconstruction of the temporal intensity signal collected by a photodetector. The time-varying spatial modulation can be achieved by either a programmable spatial device or a spinning object. Our method can directly measure the Jones matrix of light with high accuracy due to the high-volume time sampling.