Dynamic Complex Wave-front Modulation with an Analog Spatial Light Modulator

Birch, Phil, Young, Rupert, Budgett, David and Chatwin, Chris (2001) Dynamic Complex Wave-front Modulation with an Analog Spatial Light Modulator. Optics Letters, 26 (12). pp. 920-922. ISSN 0146-9592

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A 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.

Item Type: Article
Additional Information: 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.
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Depositing User: Philip Birch
Date Deposited: 06 Feb 2012 18:25
Last Modified: 06 Feb 2012 21:33
URI: http://sro.sussex.ac.uk/id/eprint/16232
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