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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 19 — Oct. 1, 2013
  • pp: 3830–3833

Limits of imaging-system simplification using cubic mask wavefront coding

Martin Larivière-Bastien and Simon Thibault  »View Author Affiliations

Optics Letters, Vol. 38, Issue 19, pp. 3830-3833 (2013)

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Increasing the space-bandwidth product of an imaging system will lead to a complex and expensive optical system. Techniques exist to simplify imaging systems. We propose the use of a hybrid imaging system using pupil phase modulation. Based on the reconstructed image’s mean-squared error, we compute how this error is affected under various third-order aberrations. We determine the best cubic phase-mask parameter and study the impact of the orientation of the coma and astigmatism, as we have in a real optical system (from 0 to 2π). We then compute how the reconstructed image’s quality varies by adding defocus-related aberrations (defocus and/or field curvature). Based on our analysis, we determine the limits of a hybrid imaging system using a cubic phase mask to develop simplified imaging systems. We conclude that the simplified lens design can be corrected if its aberrations are limited to 1 lambda of coma, astigmatism, and spherical aberrations and less than 1 lambda of field curvature or defocus.

© 2013 Optical Society of America

OCIS Codes
(100.1830) Image processing : Deconvolution
(110.4280) Imaging systems : Noise in imaging systems
(110.1758) Imaging systems : Computational imaging
(110.7348) Imaging systems : Wavefront encoding

ToC Category:
Imaging Systems

Original Manuscript: July 11, 2013
Revised Manuscript: August 26, 2013
Manuscript Accepted: August 28, 2013
Published: September 23, 2013

Martin Larivière-Bastien and Simon Thibault, "Limits of imaging-system simplification using cubic mask wavefront coding," Opt. Lett. 38, 3830-3833 (2013)

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