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Optics Letters

Optics Letters


  • Vol. 28, Iss. 17 — Sep. 1, 2003
  • pp: 1513–1515

Multifunctional double-layered diffractive optical element

Enwen Dai, Changhe Zhou, Peng Xi, and Liren Liu  »View Author Affiliations

Optics Letters, Vol. 28, Issue 17, pp. 1513-1515 (2003)

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We propose a novel multifunctional double-layered diffractive optical element (DOE) based on the fractional Talbot effect. This DOE consists of two layers: one is the encoding layer, in which multiple sub-DOEs, i.e., multiple optical functions, are encoded; the other is the decoding layer, which is a properly designed Talbot illuminator. This DOE can perform each of the multiple optical functions one by one by shifting the encoding layer. Experimental results demonstrate that this method is efficient. This device should be highly interesting for integrated optics, optical interconnection, secure optical storage, and dynamic optical fiber communications.

© 2003 Optical Society of America

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(070.6760) Fourier optics and signal processing : Talbot and self-imaging effects
(230.6120) Optical devices : Spatial light modulators

Enwen Dai, Changhe Zhou, Peng Xi, and Liren Liu, "Multifunctional double-layered diffractive optical element," Opt. Lett. 28, 1513-1515 (2003)

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