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Dynamic Complex Wave-front Modulation with an Analog Spatial Light Modulator
journal contribution
posted on 2023-06-07, 19:55 authored by Phil BirchPhil Birch, Rupert YoungRupert Young, David Budgett, Chris ChatwinChris ChatwinA method of producing an arbitrary complex field modulation by use of two pixels of an analog ferroelectric spatial light modulator (SLM) is demonstrated. The method uses the gray-scale modulation capabilities of a SLM to spatially encode the complex data on two pixels. A spatial filter is used to remove the carrier signal. This technique gives fast gray-level amplitude and phase modulation.
History
Publication status
- Published
Journal
Optics LettersISSN
0146-9592External DOI
Issue
12Volume
26Page range
920-922Pages
3.0Department affiliated with
- Engineering and Design Publications
Notes
The paper reports the first experimental demonstration of full complex modulation of a coherent wavefront on a spatial light modulator invented by Birch. The work results from an EPSRC ROPA (GR/L71230/01) award on which I was the researcher. This has several applications in research such as our digital/optical correlator system (currently being developed by the Indian Institute of Technology (joby@physics.iitd.ernet.in), and Richard Hartman (hartman@aos-inc.com) of AOS Inc following our work). Previous systems could only implement phase, limiting their performance. It was one of the first uses of the BNS analogue SLM (info@bnonlinear.com) and is used to market their SLMs.Full text available
- No
Peer reviewed?
- Yes
