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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 23, Iss. 19 — Oct. 1, 1998
  • pp: 1541–1543

Beam steering with two ferroelectric liquid-crystal spatial light modulators

Björn Löfving and Sverker Hård  »View Author Affiliations


Optics Letters, Vol. 23, Issue 19, pp. 1541-1543 (1998)
http://dx.doi.org/10.1364/OL.23.001541


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Abstract

Ferroelectric liquid-crystal spatial light modulators (FLC SLM’s) are binary modulating devices that can be used for flexible beam steering in the microsecond range. Because they are binary, at least 60% of the light power is lost to unwanted diffraction orders, however. We suggest the use of a second FLC SLM, synchronously operating in amplitude-modulating mode, to block the unwanted orders. The proposed beam-steering method is demonstrated in a simple scanner experiment. The efficiency of the suggested beam steerer is independent of the number of steering directions.

© 1998 Optical Society of America

OCIS Codes
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers

Citation
Björn Löfving and Sverker Hård, "Beam steering with two ferroelectric liquid-crystal spatial light modulators," Opt. Lett. 23, 1541-1543 (1998)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-23-19-1541

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