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Recursive design of a holographic focusing grating coupler.

Authors
  • Amitai, Y
  • Erteza, I A
  • Goodman, J W
Type
Published Article
Journal
Applied optics
Publication Date
Sep 20, 1991
Volume
30
Issue
27
Pages
3886–3890
Identifiers
DOI: 10.1364/AO.30.003886
PMID: 20706479
Source
Medline
License
Unknown

Abstract

A method for designing and recording a holographic optical element that is used as a waveguide focusing grating coupler is presented. It is based on recording the holographic coupler with two predistorted wave fronts, derived from interim holograms, whose readout and recording geometries are different. The corrected holographic coupler has almost aberration-free performance even for couplers with very small f/numbers or with large wavelength shift between recording and readout.

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