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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 24, Iss. 23 — Dec. 1, 1999
  • pp: 1756–1758

Optimized phase quantization for diffractive elements by use of a bias phase

Karsten Ballüder and Mohammad R. Taghizadeh  »View Author Affiliations


Optics Letters, Vol. 24, Issue 23, pp. 1756-1758 (1999)
http://dx.doi.org/10.1364/OL.24.001756


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Abstract

Many applications of diffractive phase elements involve the calculation of a continuous phase profile that is subsequently quantized for fabrication. The quantization process maps the continuous range of phase values to a limited number of discrete steps. We report our observation of the influence of this quantization process on the performance of mode-selecting diffractive elements and show that the quantization process produces significantly better results by use of an optimized bias phase. In principle this process can be employed to a greater or lesser extent in any quantization process.

© 1999 Optical Society of America

OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(050.1970) Diffraction and gratings : Diffractive optics
(140.3300) Lasers and laser optics : Laser beam shaping
(140.4780) Lasers and laser optics : Optical resonators
(230.1950) Optical devices : Diffraction gratings

Citation
Karsten Ballüder and Mohammad R. Taghizadeh, "Optimized phase quantization for diffractive elements by use of a bias phase," Opt. Lett. 24, 1756-1758 (1999)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-24-23-1756

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