Optical: systems and elements – Optical modulator – Light wave temporal modulation
Patent
1997-06-04
1999-02-16
Ben, Loha
Optical: systems and elements
Optical modulator
Light wave temporal modulation
359559, 359561, 356347, G02B 2600, G02B 2746
Patent
active
058726489
ABSTRACT:
New on-axis, optically addressable spatial light modulators (SLMs) and methods of use are described. The new SLMs include a film of a photochromic material and a non-polarizing beam splitter arranged such that read and write beams counterpropagate with one another, and the read beam is separated from the path of the write beam after being transmitted through the photochromic material film without losing any polarization information encoded on the read beam. The new SLMs are advantageously implemented in incoherent-to-coherent optical converters and all-optical joint transform correlators.
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Fiddy Michael A.
Lawton Carl W.
Pommet Drew A.
Sanchez Julian David
Ben Loha
University of Massachusetts
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