Dynamic phase measurement of fast liquid crystal phase modulators

We present dynamic time-resolved measurements of a multi-pixel analog liquid crystal phase modulator driven at a 1 kHz frame rate. A heterodyne interferometer is used to interrogate two pixels independently and simultaneously, to deconvolve phase modulation with a wide bandwidth. The root mean squar...

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Bibliographic Details
Published in:Optics express 2022-07, Vol.30 (14), p.24788-24803
Main Authors: Fells, Julian A. J., Salter, Patrick S., Welch, Chris, Jin, Yihan, Wilkinson, Timothy D., Booth, Martin J., Mehl, Georg H., Elston, Steve J., Morris, Stephen M.
Format: Article
Language:English
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Summary:We present dynamic time-resolved measurements of a multi-pixel analog liquid crystal phase modulator driven at a 1 kHz frame rate. A heterodyne interferometer is used to interrogate two pixels independently and simultaneously, to deconvolve phase modulation with a wide bandwidth. The root mean squared optical phase error within a 30 Hz to 25 kHz bandwidth is
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.460083