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Focal characteristics of spheroidal geodesic lenses for integrated optical processingAspheric shaping of geodesic lenses in optical waveguides is suggested as a means for correcting spherical aberrations. The technique is complementary to the method of Spiller and Harper, in which geodesic lens aberrations are reduced by thickening the waveguiding layer in the lens region. The properties of a family of oblate-spheroidal lenses with no third-order spherical aberrations are described theoretically. Diffraction-limited performance over apertures up to one-half the full lens aperture is predicted for lenses with true f/numbers (focal length divided by useful aperture) in the range 2-12. By combining spheroidal-shaping and mode-index correction techniques, geodesic lenses free from both third- and fifth-order aberrations can be designed. These lenses show diffraction-limited performance over apertures of a centimeter or more when true f/numbers are in the range 1.5-9.5.
Document ID
19770046550
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Vahey, D. W.
(Battelle Columbus Labs. OH, United States)
Wood, V. E.
(Battelle Columbus Laboratories Columbus, Ohio, United States)
Date Acquired
August 8, 2013
Publication Date
April 1, 1977
Publication Information
Publication: IEEE Journal of Quantum Electronics
Volume: QE-13
Subject Category
Optics
Accession Number
77A29402
Distribution Limits
Public
Copyright
Other

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