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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 36, Iss. 11 — Apr. 10, 1997
  • pp: 2347–2352

Self-adjusting dynamic binary phase holograms

Björn Löfving  »View Author Affiliations


Applied Optics, Vol. 36, Issue 11, pp. 2347-2352 (1997)
http://dx.doi.org/10.1364/AO.36.002347


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Abstract

An optical system constructed around a dynamic diffractive optic element, a ferroelectric liquid-crystal spatial light modulator in binary phase-only modulation mode, is investigated. The spatial light modulator is successively adjusted according to the direct binary search technique to diffract an incoming laser light beam into a predecided intensity distribution by use of feed back from the diffracted light. It was found that the feedback signal was noisy and that vibrations and limited bistability in the spatial light modulator’s pixels were the main noise sources. The final diffraction efficiency depends on the degree of noise in the feedback signal, but even under fairly noisy conditions the iterations were found to converge properly.

© 1997 Optical Society of America

History
Original Manuscript: June 26, 1996
Revised Manuscript: December 23, 1996
Published: April 10, 1997

Citation
Björn Löfving, "Self-adjusting dynamic binary phase holograms," Appl. Opt. 36, 2347-2352 (1997)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-36-11-2347


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References

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