Journal
JOURNAL OF OPTICS
Volume 23, Issue 6, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2040-8986/abed33
Keywords
polarisation; adaptive optics; spatial light modulator
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Funding
- European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (AdOMiS) [695140]
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Theoretical analysis demonstrates how a sequence of spatial light modulators can compensate for polarization and phase errors introduced by a spatially variant homogeneous waveplate. Analytic solutions for the required SLM settings are obtained through the construction of a geometrical model on the Poincare sphere, validated against numerical models. This approach can be used to control a multi-pass SLM system in an efficient vectorial adaptive optics system.
We show theoretically how a sequence of spatial light modulators (SLMs) can be used to compensate polarisation and phase errors introduced by a spatially variant homogeneous waveplate with any polarisation eigenmode and arbitrary retardance distribution. The resultant compensation is applicable to all pure input polarisation states. The properties of such a system are easily described using Jones calculus in terms of the retardance distribution on each SLM. However, it is not straightforward to determine from the Jones matrices the arrangements nor the settings of each SLM required to implement an arbitrary spatially variant retarder. In order to address this problem, analytic solutions for the required SLM settings are obtained through the construction of a geometrical model on the Poincare sphere. These solutions are validated against numerical models. These models can be used, for example, to control a multi-pass SLM system acting as the correction device in an efficient vectorial adaptive optics system.
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